diff --git a/actions/challengeRegistration.js b/actions/challengeRegistration.js
index 9b4027dec..f708ab4f0 100644
--- a/actions/challengeRegistration.js
+++ b/actions/challengeRegistration.js
@@ -3,14 +3,17 @@
  *
  * The APIs to register a challenge (studio category or software category) for the current logged-in user.
  *
- * @version 1.2
- * @author ecnu_haozi, xjtufreeman, TCSASSEMBLER
+ * @version 1.3
+ * @author ecnu_haozi, xjtufreeman, bugbuka
  *
  * changes in 1.1:
  * Combine Challenge Registration API(BUGR-11058)
  *
  * changes in 1.2:
  * Integrate the forums operation(Module Assembly - Integrating Forums Wrapper with Challenge Registration API)
+ *
+ * changes in 1.3:
+ * move common function getForumWrapper, aduitResourceAddition to challengeHelper.js
  */
 "use strict";
 
@@ -26,25 +29,6 @@ var ForbiddenError = require('../errors/ForbiddenError');
  */
 var forumWrapper = null;
 
-/**
- * Get forum wrapper. It is initialized only once.
- * @param {Object} api The api object that is used to access the infrastructure.
- * @param {Function<err, forumWrapper>} callback the callback function
- */
-var getForumWrapper = function (api, callback) {
-    if (forumWrapper) {
-        callback(null, forumWrapper);
-    } else {
-        try {
-            forumWrapper = new ForumWrapper(api.config.general.devForumJNDI);
-            callback(null, forumWrapper);
-        } catch (ex) {
-            api.log('Failed to connect to forum: ' + ex + " " + (ex.stack || ''), 'error');
-            callback(new Error('Failed to connect to forum'));
-        }
-    }
-};
-
 //constants
 var DESIGN_PROJECT_TYPE = 1,
     DEVELOPMENT_PROJECT_TYPE = 2,
@@ -162,27 +146,6 @@ var persistResource = function (api, resourceId, userId, challengeId, dbConnecti
         });
 };
 
-/**
- * Audit the challenge registration on table 'tcs_catalog.project_user_audit'.
- *
- * @param {Object} api The api object that is used to access the infrastructure.
- * @param {Number} userId The current logged-in user's id.
- * @param {Number} challengeId The id of the challenge to register.
- * @param {Object} dbConnectionMap The database connection map for the current request.
- * @param {Function<err, data>} next The callback to be called after this function is done.
- */
-var aduitResourceAddition = function (api, userId, challengeId, dbConnectionMap, next) {
-    api.dataAccess.executeQuery("audit_challenge_registration", {
-        projectId: challengeId,
-        resourceUserId: userId,
-        resourceRoleId: SUBMITTER_RESOURCE_ROLE_ID,
-        auditActionTypeId: PROJECT_USER_AUDIT_CREATE_TYPE,
-        actionUserId: userId
-    },
-        dbConnectionMap,
-        next);
-};
-
 /**
  * Check if the rating suit for software category contests. 
  * The code logic is duplicated from server-side java code.
@@ -282,7 +245,7 @@ var projectTrack = function (api, userId, challengeId, componentInfo, dbConnecti
         function (resourceId, callback) {
             async.parallel([
                 function (cb) {
-                    aduitResourceAddition(api, userId, challengeId, dbConnectionMap, cb);
+                    api.challengeHelper.aduitResourceAddition(api, userId, challengeId, SUBMITTER_RESOURCE_ROLE_ID, PROJECT_USER_AUDIT_CREATE_TYPE, dbConnectionMap, cb);
                 },
                 function (cb) {
                     prepareProjectResult(
@@ -487,7 +450,7 @@ var grantForumAccess = function (api, userId, activeForumCategoryId, next) {
     api.log('start to grant user ' + userId + ' forum category ' +  activeForumCategoryId + ' access.');
     async.waterfall([
         function (cb) {
-            getForumWrapper(api, cb);
+            api.challengeHelper.getForumWrapper(api, cb);
         }, function (forumWrapper, cb) {
             forumWrapper.assignRole(userId, "Software_Users_" + activeForumCategoryId, function (err) {
                 if (err) {
diff --git a/actions/challengeUnregistration.js b/actions/challengeUnregistration.js
new file mode 100755
index 000000000..5c9320b05
--- /dev/null
+++ b/actions/challengeUnregistration.js
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) 2014 TopCoder Inc., All Rights Reserved.
+ *
+ * The APIs to un-register a challenge (studio category or software category) for the current logged-in user.
+ *
+ * @version 1.0
+ * @author bugbuka
+ */
+"use strict";
+
+var async = require('async');
+var _ = require('underscore');
+var moment = require('moment');
+var ForumWrapper = require("forum-connector").ForumWrapper;
+var UnauthorizedError = require('../errors/UnauthorizedError');
+var NotFoundError = require('../errors/NotFoundError');
+var ForbiddenError = require('../errors/ForbiddenError');
+
+//constants
+var SUBMITTER_RESOURCE_ROLE_ID = 1,
+    PROJECT_USER_AUDIT_DELETE_TYPE = 2;
+
+/**
+ * Checks if specified challenge category ID implies the presence of records in project_result and component_inquiry
+ * tables for challenge registrants.
+ *
+ * @param {Number} categoryId - ID for challenge category.
+ * @returns {boolean} true if above records are required; false otherwise.
+ * @since 1.3
+ */
+function isProjectResultCategory(categoryId) {
+    return (categoryId === 1   // Component Design
+        || categoryId === 2    // Component Development
+        || categoryId === 5    // Component Testing
+        || categoryId === 6    // Application Specification
+        || categoryId === 7    // Application Architecture
+        || categoryId === 9    // Bug Hunt
+        || categoryId === 13   // Test Scenarios
+        || categoryId === 26   // Test Suites
+        || categoryId === 14   // Application Assembly
+        || categoryId === 23   // Application Conceptualization
+        || categoryId === 19   // UI Prototype
+        || categoryId === 24   // RIA Build
+        || categoryId === 25   // RIA Component
+        || categoryId === 29   // Copilot Posting
+        || categoryId === 35   // Content Creation
+        || categoryId === 36   // Reporting
+        || categoryId === 38   // First2Finish
+        || categoryId === 39   // Code
+        );
+}
+
+/**
+ * Remove forum permissions. It is initialized only once.
+ *
+ * @param {Object} api The api object that is used to access the infrastructure.
+ * @param {Number} userId The current logged-in user's id.
+ * @param {Number} forumCategoryId The sql params.
+ * @param {Function<err, data>} next The callback to be called after this function is done.
+ */
+var removeForumPermissions = function (api, userId, forumCategoryId, next) {
+
+    if (api.config.general.grantForumAccess !== true || forumCategoryId === 0) {
+        next();
+        return;
+    }
+
+    if (forumCategoryId === null) {
+        api.log('Could not find forum category ' + forumCategoryId, 'error');
+        next(new Error('Could not find forum category ' + forumCategoryId));
+        return;
+    }
+
+    api.log('start to remove user ' + userId + ' from forum category ' +  forumCategoryId + '.');
+    async.waterfall([
+        function (cb) {
+            api.challengeHelper.getForumWrapper(api, cb);
+        }, function (forumWrapper, cb) {
+            forumWrapper.removeRole(userId, "Software_Users_" + forumCategoryId, cb);
+        }, function (forumWrapper, cb) {
+            forumWrapper.removeRole(userId, "Software_Moderators_" + forumCategoryId, cb);
+        }, function (forumWrapper, cb) {
+            forumWrapper.removeUserPermission(userId, forumCategoryId, cb);
+        }, function (forumWrapper, cb) {
+            forumWrapper.deleteCategoryWatch(userId, forumCategoryId, cb);
+        }
+    ], function (err) {
+        if (err) {
+            next(err);
+            return;
+        }
+        next();
+    });
+};
+
+/**
+ * Unregister a development (software) challenge for the current logged-in user.
+ *
+ * @param {Object} api The api object that is used to access the infrastructure.
+ * @param {Number} userId The current logged-in user's id.
+ * @param {Object} sqlParams The sql params.
+ * @param {Object} unregisterInfo The data used to do unregistration.
+ * @param {Object} dbConnectionMap The database connection map for the current request.
+ * @param {Function<err, data>} next The callback to be called after this function is done.
+ */
+var unregisterChallenge = function (api, userId, sqlParams, unregisterInfo, dbConnectionMap, next) {
+    async.series([
+        function (cb) {
+            if (sqlParams.isStudio || isProjectResultCategory(sqlParams.categoryId)) {
+                api.dataAccess.executeQuery("delete_challenge_result", sqlParams, dbConnectionMap, cb);
+            } else {
+                cb();
+            }
+
+        }, function (cb) {
+
+            if (_.size(unregisterInfo.userChallengeResources) < 1) {
+                api.log("Could not find user challenge resource", 'error');
+                cb(new Error('Could not find user challenge resource'));
+                return;
+            }
+            var submitterRoleResourceId =  _.filter(unregisterInfo.userChallengeResources, function (resource) {
+                return resource.resource_role_id === SUBMITTER_RESOURCE_ROLE_ID;
+            })[0].resource_id;
+
+            api.dataAccess.executeQuery("delete_challenge_resources", {resourceId : submitterRoleResourceId}, dbConnectionMap, cb);
+        }, function (cb) {
+
+            api.challengeHelper.aduitResourceAddition(api, userId, sqlParams.challengeId, SUBMITTER_RESOURCE_ROLE_ID, PROJECT_USER_AUDIT_DELETE_TYPE, dbConnectionMap, cb);
+        }, function (cb) {
+
+            if (_.size(unregisterInfo.userChallengeResources)  === 1 && unregisterInfo.userChallengeResources[0].resource_role_id === SUBMITTER_RESOURCE_ROLE_ID) { // Only remove forum permissions if the user has no other roles left.
+                if (unregisterInfo.challengeForum.length === 0) {
+                    api.log("Could not find user challenge forum", 'error');
+                    cb(new Error('Could not find user challenge forum'));
+                    return;
+                }
+                var forumCategoryId = parseInt(unregisterInfo.challengeForum[0].forum_category_id, 10);
+                removeForumPermissions(api, userId, forumCategoryId, cb);
+            }
+            cb();
+        }
+    ], next);
+};
+
+/**
+ * The action to unregister a challenge for the current logged-in user.
+ *
+ * @param {Object} api The api object that is used to access the infrastructure.
+ * @param {Object} connection The connection for the current request.
+ * @param {Function<err, data>} next The callback to be called after this function is done.
+ */
+var unregisterChallengeAction = function (api, connection, next) {
+
+    var helper = api.helper,
+        sqlParams = {},
+        userId = connection.caller.userId,
+        challengeId = Number(connection.params.challengeId),
+
+        execQuery = function (name) {
+            return function (cbx) {
+                api.dataAccess.executeQuery(name, sqlParams, connection.dbConnectionMap, cbx);
+            };
+        };
+
+    async.waterfall([
+        function (cb) {
+
+            //Simple validations of the incoming parameters
+            var error = helper.checkPositiveInteger(challengeId, 'challengeId') ||
+                helper.checkMaxInt(challengeId, 'challengeId') ||
+                helper.checkMember(connection, 'You don\'t have the authority to access this. Please login.');
+
+            if (error) {
+                cb(error);
+                return;
+            }
+
+            //Check if the user passes validations for joining the challenge
+            sqlParams.userId = userId;
+            sqlParams.challengeId = challengeId;
+
+            api.dataAccess.executeQuery("challenge_unregistration_validations", sqlParams, connection.dbConnectionMap, cb);
+        }, function (rows, cb) {
+            if (rows.length === 0) {
+
+                cb(new NotFoundError('No such challenge exists.'));
+            } else if (!rows[0].reg_open) {
+
+                cb(new ForbiddenError('You cannot unregister since registration phase is closed.'));
+            } else if (!rows[0].user_has_submitter_resource_role) {
+
+                cb(new ForbiddenError('You are not registered for this challenge.'));
+            } 
+
+            sqlParams.categoryId = rows[0].category_id;
+            sqlParams.isStudio =  rows[0].is_studio;
+
+            async.series({
+                userChallengeResources: execQuery('get_user_challenge_resource'),
+                challengeForum: execQuery('get_challenge_forum')
+            }, cb);
+
+        },
+        function (result, cb) {
+            unregisterChallenge(api, userId, sqlParams, result, connection.dbConnectionMap, cb);
+        }
+    ], function (err) {
+        if (err) {
+            api.helper.handleError(api, connection, err);
+        } else {
+            api.log("unregister the challenge succeeded.", 'debug');
+            connection.response = {message : "ok"};
+        }
+        next(connection, true);
+    });
+
+};
+
+/**
+ * The API to unregister a challenge for the current logged-in user.
+ */
+exports.unregisterChallenge = {
+    name: "unregisterChallenge",
+    description: "unregisterChallenge",
+    inputs: {
+        required: ["challengeId"],
+        optional: []
+    },
+    blockedConnectionTypes: [],
+    outputExample: {},
+    version: 'v2',
+    cacheEnabled : false,
+    transaction: 'write',
+    databases: ["tcs_catalog"],
+    run: function (api, connection, next) {
+        if (connection.dbConnectionMap) {
+            api.log("Execute unregisterChallenge#run", 'debug');
+            unregisterChallengeAction(api, connection, next);
+        } else {
+            api.helper.handleNoConnection(api, connection, next);
+        }
+    }
+};
+
+
diff --git a/apiary.apib b/apiary.apib
index 59647c445..04d1f52f0 100644
--- a/apiary.apib
+++ b/apiary.apib
@@ -5647,6 +5647,134 @@ Register a new user.
             "description":"Servers are up but overloaded. Try again later."
         }
 
+## Unregister for a software/studio challenge [/challenges/{challengeId}/unregister]
+### Unregister for a software/studio challenge [POST]
+
++ Parameters
+    + challengeId (required, number, `1234567`) ... The challenge for which to Unregister
+
++ Request
+
+    + Headers
+
+            Authorization : Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJhZHwxMzI0NTYiLCJleHAiOjEzOTM3MDM1NzEsImF1ZCI6InRvcGNvZGVyIiwiaWF0IjoxMzkzNjQzNTcxfQ.F2iohKp2nwjQeGqrBD1wn42GJUD0r28aGjhDle7KujA
+
++ Response 200 (application/json)
+
+        {
+          "message":"ok"
+        }
+
++ Response 400 (application/json)
+
+        {
+            "name":"Bad Request",
+            "value":"400",
+            "description":"challengeId should be less or equal to 2147483647."
+        }
+
++ Response 400 (application/json)
+
+        {
+            "name":"Bad Request",
+            "value":"400",
+            "description":"challengeId should be number."
+        }
+
++ Response 400 (application/json)
+
+        {
+            "name":"Bad Request",
+            "value":"400",
+            "description":"challengeId should be positive."
+        }
+
++ Response 401 (application/json)
+
+        {
+            "name":"Unauthorized",
+            "value":"401",
+            "description":"You don\'t have the authority to access this. Please login."
+        }
+
++ Response 403 (application/json)
+
+        {
+            "name":"Forbidden",
+            "value":"403",
+            "description":"You cannot unregister since registration phase is closed."
+        }
+
++ Response 403 (application/json)
+
+        {
+            "name":"Forbidden",
+            "value":"403",
+            "description":"You are not registered for this challenge."
+        }
+
++ Response 404 (application/json)
+
+        {
+            "name":"Not Found",
+            "value":"404",
+            "description":"No such challenge exists."
+        }
+
++ Response 500 (application/json)
+
+        {
+            "name":"Internal Server Error",
+            "value":"500",
+            "description":"Unknown server error. Please contact support."
+        }
+
++ Response 500 (application/json)
+
+        {
+            "name": "Internal Server Error",
+            "value": 500,
+            "description": "Something is broken. Please contact support.",
+            "details": "Failed to connect to forum"
+        }
+
++ Response 500 (application/json)
+
+        {
+            "name": "Internal Server Error",
+            "value": 500,
+            "description": "Something is broken. Please contact support.",
+            "details": "Could not find user challenge resource"
+        }
+
+
++ Response 500 (application/json)
+
+        {
+            "name": "Internal Server Error",
+            "value": 500,
+            "description": "Something is broken. Please contact support.",
+            "details": "Could not find user challenge forum"
+        }
+
+
++ Response 500 (application/json)
+
+        {
+            "name": "Internal Server Error",
+            "value": 500,
+            "description": "Something is broken. Please contact support.",
+            "details": "Could not find forum category 3"
+        }
+
++ Response 503 (application/json)
+
+        {
+            "name":"Service Unavailable",
+            "value":"503",
+            "description":"Servers are up but overloaded. Try again later."
+        }
+
 # Group Terms Of Use API
 ## View terms of use [/terms/detail/{termsOfUseId}]
 ### View terms of use by id [GET]
diff --git a/initializers/challengeHelper.js b/initializers/challengeHelper.js
index 95d2767d3..8545cb5d9 100644
--- a/initializers/challengeHelper.js
+++ b/initializers/challengeHelper.js
@@ -1,9 +1,12 @@
 /*
  * Copyright (C) 2013 - 2014 TopCoder Inc., All Rights Reserved.
  *
- * @version 1.0
- * @author ecnu_haozi
+ * @version 1.1
+ * @author ecnu_haozi, bugbuka
  * Refactor common code out from challenge.js.
+ *
+ * changes in 1.1:
+ * add common function getForumWrapper, aduitResourceAddition
  */
 "use strict";
 
@@ -14,12 +17,18 @@ var BadRequestError = require('../errors/BadRequestError');
 var UnauthorizedError = require('../errors/UnauthorizedError');
 var NotFoundError = require('../errors/NotFoundError');
 var ForbiddenError = require('../errors/ForbiddenError');
+var ForumWrapper = require("forum-connector").ForumWrapper;
 
 /**
  * This copilot posting project type id
  */
 var COPILOT_POSTING_PROJECT_TYPE = 29;
 
+/**
+ * The forum wrapper instance
+ */
+var forumWrapper = null;
+
 /**
  * Expose the "idGenerator" utility.
  *
@@ -29,6 +38,50 @@ var COPILOT_POSTING_PROJECT_TYPE = 29;
 exports.challengeHelper = function (api, next) {
     api.challengeHelper = {
 
+        /**
+         * Get forum wrapper. It is initialized only once.
+         * @param {Object} api The api object that is used to access the infrastructure.
+         * @param {Function<err, forumWrapper>} callback the callback function
+         * @since 1.1
+         */
+        getForumWrapper : function (api, callback) {
+            if (forumWrapper) {
+                callback(null, forumWrapper);
+            } else {
+                try {
+                    forumWrapper = new ForumWrapper(api.config.general.devForumJNDI);
+                    callback(null, forumWrapper);
+                } catch (ex) {
+                    api.log('Failed to connect to forum: ' + ex + " " + (ex.stack || ''), 'error');
+                    callback(new Error('Failed to connect to forum'));
+                }
+            }
+        },
+
+        /**
+         * Audit the challenge registration on table 'tcs_catalog.project_user_audit'.
+         *
+         * @param {Object} api The api object that is used to access the infrastructure.
+         * @param {Number} userId The current logged-in user's id.
+         * @param {Number} challengeId The id of the challenge to register.
+         * @param {Number} submitterResourceRoleId The id of the submitter resource role.
+         * @param {Number} auditActionTypeId The id of the audit action type.
+         * @param {Object} dbConnectionMap The database connection map for the current request.
+         * @param {Function<err, data>} next The callback to be called after this function is done.
+         * @since 1.1
+         */
+        aduitResourceAddition : function (api, userId, challengeId, submitterResourceRoleId, auditActionTypeId, dbConnectionMap, next) {
+            api.dataAccess.executeQuery("audit_challenge_registration", {
+                projectId: challengeId,
+                resourceUserId: userId,
+                resourceRoleId: submitterResourceRoleId,
+                auditActionTypeId: auditActionTypeId,
+                actionUserId: userId
+            },
+                dbConnectionMap,
+                next);
+        },
+
         /**
          * Gets the challenge terms for the current user given the challenge id and an optional role.
          * 
diff --git a/package.json b/package.json
index b69616314..d84896042 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "bignum": "0.6.2",
     "java": "0.2.9",
     "informix-wrapper": "git://github.com/cloudspokes/informix-wrapper.git#ae513d6c27d14acaef52092165831dcf23fc83dd",
-    "forums-wrapper": "git://github.com/cloudspokes/forums-wrapper.git#9066f062e4e2a97b3de89e047a3b022443e7dd83",
+    "forums-wrapper": "git://github.com/cloudspokes/forums-wrapper.git#98d0db07348a0950924b9ec967bf83769346b700",
     "asn1": "*",
     "crypto": ">= 0.0.3",
     "jsonwebtoken": "*",
diff --git a/queries/challenge_unregistration_validations b/queries/challenge_unregistration_validations
new file mode 100755
index 000000000..c0e29841d
--- /dev/null
+++ b/queries/challenge_unregistration_validations
@@ -0,0 +1,19 @@
+select distinct
+	p.project_id,
+	p.project_category_id as category_id,
+	(pp_reg_open.project_id IS NOT NULL) as reg_open,
+    (resource_role_id IS NOT NULL) as user_has_Submitter_resource_role,
+    CASE WHEN (p.project_studio_spec_id is NULL) THEN 0 ELSE 1 END as is_studio
+from project p
+-- Check if project's registration is open 
+left join 
+	project_phase pp_reg_open 
+	on p.project_id = pp_reg_open.project_id 
+	and pp_reg_open.phase_type_id = 1 
+	and pp_reg_open.phase_status_id = 2
+-- Check if user has Submitter resource role
+left join resource rs
+    on rs.project_id = p.project_id
+    and rs.resource_role_id = 1
+where p.project_id = @challengeId@;
+
diff --git a/queries/challenge_unregistration_validations.json b/queries/challenge_unregistration_validations.json
new file mode 100755
index 000000000..26e53f27b
--- /dev/null
+++ b/queries/challenge_unregistration_validations.json
@@ -0,0 +1,5 @@
+{
+    "name"    : "challenge_unregistration_validations",
+    "db"      : "tcs_catalog",
+    "sqlfile" : "challenge_unregistration_validations"
+}
diff --git a/queries/delete_challenge_resources b/queries/delete_challenge_resources
new file mode 100755
index 000000000..1a24a1fe8
--- /dev/null
+++ b/queries/delete_challenge_resources
@@ -0,0 +1,3 @@
+DELETE FROM resource_info WHERE resource_id = @resourceId@;
+DELETE FROM resource_submission WHERE resource_id = @resourceId@;
+DELETE FROM resource WHERE resource_id = @resourceId@;
\ No newline at end of file
diff --git a/queries/delete_challenge_resources.json b/queries/delete_challenge_resources.json
new file mode 100755
index 000000000..feb0dc72a
--- /dev/null
+++ b/queries/delete_challenge_resources.json
@@ -0,0 +1,5 @@
+{
+    "name" : "delete_challenge_resources",
+    "db"      : "tcs_catalog",
+    "sqlfile" : "delete_challenge_resources"
+}
\ No newline at end of file
diff --git a/queries/delete_challenge_result b/queries/delete_challenge_result
new file mode 100755
index 000000000..05cadc78a
--- /dev/null
+++ b/queries/delete_challenge_result
@@ -0,0 +1,2 @@
+delete from project_result where project_id = @challengeId@ and user_id = @userId@;
+delete from component_inquiry where project_id = @challengeId@ and user_id = @userId@;
\ No newline at end of file
diff --git a/queries/delete_challenge_result.json b/queries/delete_challenge_result.json
new file mode 100755
index 000000000..dab2e2a02
--- /dev/null
+++ b/queries/delete_challenge_result.json
@@ -0,0 +1,5 @@
+{
+    "name" : "delete_challenge_result",
+    "db"      : "tcs_catalog",
+    "sqlfile" : "delete_challenge_result"
+}
\ No newline at end of file
diff --git a/queries/get_challenge_forum b/queries/get_challenge_forum
new file mode 100755
index 000000000..3eb0febdc
--- /dev/null
+++ b/queries/get_challenge_forum
@@ -0,0 +1,8 @@
+SELECT info.project_id,
+       info_type.name,
+       info.value as forum_category_id
+FROM   project_info AS info
+       JOIN project_info_type_lu AS info_type
+         ON info.project_info_type_id = info_type.project_info_type_id
+WHERE  info.project_id IN ( @challengeId@ )
+and name = 'Developer Forum ID'
\ No newline at end of file
diff --git a/queries/get_challenge_forum.json b/queries/get_challenge_forum.json
new file mode 100755
index 000000000..5bc8ff225
--- /dev/null
+++ b/queries/get_challenge_forum.json
@@ -0,0 +1,5 @@
+{
+    "name"		:	"get_challenge_forum",
+    "db"		:	"tcs_catalog",
+    "sqlfile"	:	"get_challenge_forum"
+}
\ No newline at end of file
diff --git a/queries/get_user_challenge_resource b/queries/get_user_challenge_resource
new file mode 100755
index 000000000..2c009b357
--- /dev/null
+++ b/queries/get_user_challenge_resource
@@ -0,0 +1,13 @@
+SELECT 	DISTINCT 
+        resource_info_type_lu.resource_info_type_id,
+		resource_info.value as user_id,
+		resource.resource_id AS  resource_id,
+        resource_role_id
+  	FROM resource,
+       resource_info,
+       resource_info_type_lu
+WHERE resource.resource_id = resource_info.resource_id
+   	AND resource_info.resource_info_type_id =  resource_info_type_lu.resource_info_type_id
+   	AND project_id = @challengeId@
+   	AND resource_info_type_lu.resource_info_type_id = 1 -- External Reference ID
+    AND resource_info.value = '@userId@'
\ No newline at end of file
diff --git a/queries/get_user_challenge_resource.json b/queries/get_user_challenge_resource.json
new file mode 100755
index 000000000..9db744c64
--- /dev/null
+++ b/queries/get_user_challenge_resource.json
@@ -0,0 +1,5 @@
+{
+"name"    : "get_user_challenge_resource",
+"db"      : "tcs_catalog",
+"sqlfile" : "get_user_challenge_resource"
+}
\ No newline at end of file
diff --git a/routes.js b/routes.js
index c84b42907..7282d668c 100755
--- a/routes.js
+++ b/routes.js
@@ -1,8 +1,8 @@
 /*
  * Copyright (C) 2013 - 2014 TopCoder Inc., All Rights Reserved.
  *
- * @version 1.31
- * @author vangavroche, Sky_, muzehyun, kurtrips, Ghost_141, ecnu_haozi, hesibo, LazyChild, TCSASSEMBLER
+ * @version 1.32
+ * @author vangavroche, Sky_, muzehyun, kurtrips, Ghost_141, ecnu_haozi, hesibo, LazyChild, bugbuka
  * Changes in 1.1:
  * - add routes for search challenges
  * Changes in 1.2:
@@ -74,6 +74,8 @@
  * - added route for getting marathon match challenge register info api
  * Changes in 1.31:
  * - add route for challenge rss output api.
+ * changes in 1.32:
+ * - added route for Challenge Unregistration API
  */
 
 /* ---------------------
@@ -231,6 +233,7 @@ exports.routes = {
         { path: "/:apiVersion/develop/challenges/:challengeId/submit", action: "submitForDevelopChallenge" },
         { path: "/:apiVersion/design/challenges/:challengeId/submit", action: "submitForDesignChallenge" },
         { path: "/:apiVersion/challenges/:challengeId/register", action: "registerChallenge" },
+        { path: "/:apiVersion/challenges/:challengeId/unregister", action: "unregisterChallenge" },
         { path: "/:apiVersion/auth", action: "generateJwt" },
         { path: "/:apiVersion/reauth", action: "refreshJwt" },
         { path: "/:apiVersion/platform/billing", action: "createBilling" },
diff --git a/test/sqls/challengeUnregistration/common_oltp__clean b/test/sqls/challengeUnregistration/common_oltp__clean
new file mode 100755
index 000000000..1e0ed8835
--- /dev/null
+++ b/test/sqls/challengeUnregistration/common_oltp__clean
@@ -0,0 +1,11 @@
+delete from user_social_login where user_id > 400010 and user_id < 400020;
+delete from user_address_xref where address_id > 40000000 and address_id < 40000010;
+delete from address where address_id > 40000000 and address_id < 40000010;
+delete from project_role_terms_of_use_xref where project_id > 40000000 and project_id < 40000020;
+delete from user_terms_of_use_xref where user_id > 400010 and user_id < 400020;
+delete from user_status where user_id > 400010 and user_id < 400020;
+delete from security_user where login_id > 400010 and login_id < 400020;
+delete from email where email_id > 400010 and email_id < 400020;
+delete from corona_event where user_id > 400010 and user_id < 400020;
+delete from user where user_id > 400010 and user_id < 400020;
+
diff --git a/test/sqls/challengeUnregistration/common_oltp__clean.json b/test/sqls/challengeUnregistration/common_oltp__clean.json
new file mode 100755
index 000000000..b9356c845
--- /dev/null
+++ b/test/sqls/challengeUnregistration/common_oltp__clean.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "common_oltp__clean",
+  "db"      : "common_oltp",
+  "sqlfile" : "common_oltp__clean"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/common_oltp__clean.sql b/test/sqls/challengeUnregistration/common_oltp__clean.sql
new file mode 100755
index 000000000..1e0ed8835
--- /dev/null
+++ b/test/sqls/challengeUnregistration/common_oltp__clean.sql
@@ -0,0 +1,11 @@
+delete from user_social_login where user_id > 400010 and user_id < 400020;
+delete from user_address_xref where address_id > 40000000 and address_id < 40000010;
+delete from address where address_id > 40000000 and address_id < 40000010;
+delete from project_role_terms_of_use_xref where project_id > 40000000 and project_id < 40000020;
+delete from user_terms_of_use_xref where user_id > 400010 and user_id < 400020;
+delete from user_status where user_id > 400010 and user_id < 400020;
+delete from security_user where login_id > 400010 and login_id < 400020;
+delete from email where email_id > 400010 and email_id < 400020;
+delete from corona_event where user_id > 400010 and user_id < 400020;
+delete from user where user_id > 400010 and user_id < 400020;
+
diff --git a/test/sqls/challengeUnregistration/common_oltp__create_sequence.sql b/test/sqls/challengeUnregistration/common_oltp__create_sequence.sql
new file mode 100755
index 000000000..dfaff8892
--- /dev/null
+++ b/test/sqls/challengeUnregistration/common_oltp__create_sequence.sql
@@ -0,0 +1,3 @@
+CREATE SEQUENCE SEQUENCE_COMPONNENT_INQUIRY_SEQ INCREMENT BY 1 START WITH 4000000;
+
+CREATE SEQUENCE SEQUENCE_RESOURCE_ID_SEQ INCREMENT BY 1 START WITH 4000000;
diff --git a/test/sqls/challengeUnregistration/common_oltp__insert_test_data b/test/sqls/challengeUnregistration/common_oltp__insert_test_data
new file mode 100755
index 000000000..c74b9cd22
--- /dev/null
+++ b/test/sqls/challengeUnregistration/common_oltp__insert_test_data
@@ -0,0 +1,59 @@
+INSERT into user (user_id, handle, status, timezone_id) values (400011, 'normal_user_11', 'A', 143);
+INSERT into user (user_id, handle, status, timezone_id) values (400012, 'normal_user_12', 'A', 143);
+INSERT into user (user_id, handle, status, timezone_id) values (400013, 'normal_user_13', 'A', 143);
+
+INSERT INTO email(user_id,email_id,email_type_id,address,create_date,modify_date,primary_ind,status_id) VALUES (400011, 400011, 1, 'facebook.topcoder@gmail.com', CURRENT, CURRENT, 1, 1);
+
+INSERT INTO user_social_login(social_user_id, user_id, social_login_provider_id, social_user_name) VALUES ('fb400011', 400011, 1, 'user11');
+INSERT INTO user_social_login(social_user_id, user_id, social_login_provider_id, social_user_name) VALUES ('fb400012', 400012, 1, 'user12');
+INSERT INTO user_social_login(social_user_id, user_id, social_login_provider_id, social_user_name) VALUES ('fb400013', 400013, 1, 'user13');
+
+INSERT INTO 'informix'.address(address_id,address_type_id,address1,address2,city,state_code,zip,country_code,create_date,modify_date,address3,province) 
+VALUES (40000001, 2, 'address1', NULL, 'city', 'ME', '04043', '840', '2008-08-01 16:37:48.000', '2008-08-01 16:37:48.000', NULL, NULL);
+INSERT INTO 'informix'.address(address_id,address_type_id,address1,address2,city,state_code,zip,country_code,create_date,modify_date,address3,province) 
+VALUES (40000002, 2, 'address1', NULL, 'city', 'ME', '04043', '192', '2008-08-01 16:37:48.000', '2008-08-01 16:37:48.000', NULL, NULL);
+
+INSERT INTO 'informix'.user_address_xref(user_id,address_id) VALUES (400012, 40000001);
+INSERT INTO 'informix'.user_address_xref(user_id,address_id) VALUES (400013, 40000002);
+
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 1, 20543, 1, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 1, 20493, 2, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 4, 20623, 3, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 4, 20713, 4, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 15, 20963, 5, 1);
+
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 1, 20543, 1, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 1, 20493, 2, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 4, 20623, 3, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 4, 20713, 4, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 15, 20963, 5, 1);
+
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20543);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20493);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20623);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20713);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20963);
+
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400012, 20543);
+
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400013, 20543);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400013, 20493);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400013, 20623);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400013, 20713);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400013, 20963);
+
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20543.txt' WHERE terms_of_use_id = 20543;
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20493.txt' WHERE terms_of_use_id = 20493;
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20623.txt' WHERE terms_of_use_id = 20623;
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20713.txt' WHERE terms_of_use_id = 20713;
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20963.txt' WHERE terms_of_use_id = 20963;
diff --git a/test/sqls/challengeUnregistration/common_oltp__insert_test_data.json b/test/sqls/challengeUnregistration/common_oltp__insert_test_data.json
new file mode 100755
index 000000000..77f0e4d97
--- /dev/null
+++ b/test/sqls/challengeUnregistration/common_oltp__insert_test_data.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "common_oltp__insert_test_data",
+  "db"      : "common_oltp",
+  "sqlfile" : "common_oltp__insert_test_data"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/common_oltp__insert_test_data.sql b/test/sqls/challengeUnregistration/common_oltp__insert_test_data.sql
new file mode 100755
index 000000000..c81c695d6
--- /dev/null
+++ b/test/sqls/challengeUnregistration/common_oltp__insert_test_data.sql
@@ -0,0 +1,49 @@
+INSERT into user (user_id, handle, status, timezone_id) values (400011, 'normal_user_11', 'A', 143);
+INSERT into user (user_id, handle, status, timezone_id) values (400012, 'normal_user_12', 'A', 143);
+
+INSERT INTO email(user_id,email_id,email_type_id,address,create_date,modify_date,primary_ind,status_id) VALUES (400011, 400011, 1, 'facebook.topcoder@gmail.com', CURRENT, CURRENT, 1, 1);
+
+INSERT INTO user_social_login(social_user_id, user_id, social_login_provider_id, social_user_name) VALUES ('fb400011', 400011, 1, 'user11');
+INSERT INTO user_social_login(social_user_id, user_id, social_login_provider_id, social_user_name) VALUES ('fb400012', 400012, 1, 'user12');
+
+INSERT INTO 'informix'.address(address_id,address_type_id,address1,address2,city,state_code,zip,country_code,create_date,modify_date,address3,province) 
+VALUES (40000001, 2, 'address1', NULL, 'city', 'ME', '04043', '840', '2008-08-01 16:37:48.000', '2008-08-01 16:37:48.000', NULL, NULL);
+
+INSERT INTO 'informix'.user_address_xref(user_id,address_id) VALUES (400011, 40000001);
+INSERT INTO 'informix'.user_address_xref(user_id,address_id) VALUES (400012, 40000001);
+
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 1, 20543, 1, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 1, 20493, 2, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 4, 20623, 3, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 4, 20713, 4, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000001, 15, 20963, 5, 1);
+
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 1, 20543, 1, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 1, 20493, 2, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 4, 20623, 3, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 4, 20713, 4, 1);
+INSERT INTO project_role_terms_of_use_xref(project_id, resource_role_id, terms_of_use_id, sort_order, group_ind) 
+VALUES (40000002, 15, 20963, 5, 1);
+
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20543);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20493);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20623);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20713);
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400011, 20963);
+
+INSERT INTO user_terms_of_use_xref(user_id, terms_of_use_id) VALUES (400012, 20543);
+
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20543.txt' WHERE terms_of_use_id = 20543;
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20493.txt' WHERE terms_of_use_id = 20493;
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20623.txt' WHERE terms_of_use_id = 20623;
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20713.txt' WHERE terms_of_use_id = 20713;
+UPDATE terms_of_use SET url = 'http://topcoder.com/terms/20963.txt' WHERE terms_of_use_id = 20963;
diff --git a/test/sqls/challengeUnregistration/informixoltp__clean b/test/sqls/challengeUnregistration/informixoltp__clean
new file mode 100755
index 000000000..0fbeadc36
--- /dev/null
+++ b/test/sqls/challengeUnregistration/informixoltp__clean
@@ -0,0 +1 @@
+DELETE FROM coder WHERE coder_id = 400013;
diff --git a/test/sqls/challengeUnregistration/informixoltp__insert_test_data b/test/sqls/challengeUnregistration/informixoltp__insert_test_data
new file mode 100755
index 000000000..21adb5061
--- /dev/null
+++ b/test/sqls/challengeUnregistration/informixoltp__insert_test_data
@@ -0,0 +1,2 @@
+INSERT INTO 'informixoltp':coder(coder_id, quote, coder_type_id, comp_country_code, display_quote, quote_location, quote_color, display_banner, banner_style)
+VALUES(400013, '', 2, '192',  1, 'md', '#000000', 1, 'bannerStyle1');
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/jive__clean b/test/sqls/challengeUnregistration/jive__clean
new file mode 100755
index 000000000..4824e26ac
--- /dev/null
+++ b/test/sqls/challengeUnregistration/jive__clean
@@ -0,0 +1,4 @@
+delete from jiveuserperm where userid = 400011;
+delete from jivegroupuser where userid > 400010 and userid < 400020;
+delete from jivegroup where groupid >= 101 and groupid <= 104;
+delete from jivecategory where categoryid >= 1001 and categoryid <= 1004;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/jive__clean.json b/test/sqls/challengeUnregistration/jive__clean.json
new file mode 100755
index 000000000..a70d93c50
--- /dev/null
+++ b/test/sqls/challengeUnregistration/jive__clean.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "jive__clean",
+  "db"      : "jive",
+  "sqlfile" : "jive__clean"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/jive__clean.sql b/test/sqls/challengeUnregistration/jive__clean.sql
new file mode 100755
index 000000000..4824e26ac
--- /dev/null
+++ b/test/sqls/challengeUnregistration/jive__clean.sql
@@ -0,0 +1,4 @@
+delete from jiveuserperm where userid = 400011;
+delete from jivegroupuser where userid > 400010 and userid < 400020;
+delete from jivegroup where groupid >= 101 and groupid <= 104;
+delete from jivecategory where categoryid >= 1001 and categoryid <= 1004;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/jive__insert_test_data b/test/sqls/challengeUnregistration/jive__insert_test_data
new file mode 100755
index 000000000..0f110cbd7
--- /dev/null
+++ b/test/sqls/challengeUnregistration/jive__insert_test_data
@@ -0,0 +1,15 @@
+INSERT INTO jivegroup(groupid, name, description, creationdate, modificationdate) VALUES (101, 'Software_Users_1001', 'contest for autotest 1', 1395226951776, 1395226951776);
+INSERT INTO jivegroup(groupid, name, description, creationdate, modificationdate) VALUES (102, 'Software_Moderators_1001', 'contest for autotest 1', 1395226951776, 1395226951776);
+INSERT INTO jivegroup(groupid, name, description, creationdate, modificationdate) VALUES (103, 'Software_Users_1002', 'contest for autotest 2', 1395226951776, 1395226951776);
+INSERT INTO jivegroup(groupid, name, description, creationdate, modificationdate) VALUES (104, 'Software_Moderators_1002', 'contest for autotest 2', 1395226951776, 1395226951776);
+
+INSERT INTO jivegroupuser (groupid, userid, administrator) VALUES	(1001,400011, 0);
+
+INSERT INTO jivecategory (categoryid, name, description, creationdate, modificationdate, lft, rgt) VALUES (1001, 'test_1001', 'test_1001', 1396014756004, 1396014756004, 1001, 1003);
+
+INSERT INTO jiveuserperm (objecttype, objectid, userid, permissiontype, permission) VALUES (14, 1001, 400011, 1, 0);
+INSERT INTO jiveuserperm (objecttype, objectid, userid, permissiontype, permission) VALUES (14, 1001, 400011, 1, 2);
+INSERT INTO jiveuserperm (objecttype, objectid, userid, permissiontype, permission) VALUES (14, 1001, 400011, 1, 1);
+INSERT INTO jiveuserperm (objecttype, objectid, userid, permissiontype, permission) VALUES (14, 1001, 400011, 1, 6);
+INSERT INTO jiveuserperm (objecttype, objectid, userid, permissiontype, permission) VALUES (14, 1001, 400011, 1, 4);
+INSERT INTO jiveuserperm (objecttype, objectid, userid, permissiontype, permission) VALUES (14, 1001, 400011, 1, 10);
diff --git a/test/sqls/challengeUnregistration/jive__insert_test_data.json b/test/sqls/challengeUnregistration/jive__insert_test_data.json
new file mode 100755
index 000000000..ed8c2f9ba
--- /dev/null
+++ b/test/sqls/challengeUnregistration/jive__insert_test_data.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "jive__insert_test_data",
+  "db"      : "jive",
+  "sqlfile" : "jive__insert_test_data"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/jive__insert_test_data.sql b/test/sqls/challengeUnregistration/jive__insert_test_data.sql
new file mode 100755
index 000000000..89049c2d7
--- /dev/null
+++ b/test/sqls/challengeUnregistration/jive__insert_test_data.sql
@@ -0,0 +1,4 @@
+INSERT INTO jivegroup(groupid, name, description, creationdate, modificationdate) VALUES (101, 'Software_Users_1001', 'contest for autotest 1', 1395226951776, 1395226951776);
+INSERT INTO jivegroup(groupid, name, description, creationdate, modificationdate) VALUES (102, 'Software_Moderators_1001', 'contest for autotest 1', 1395226951776, 1395226951776);
+INSERT INTO jivegroup(groupid, name, description, creationdate, modificationdate) VALUES (103, 'Software_Users_1002', 'contest for autotest 2', 1395226951776, 1395226951776);
+INSERT INTO jivegroup(groupid, name, description, creationdate, modificationdate) VALUES (104, 'Software_Moderators_1002', 'contest for autotest 2', 1395226951776, 1395226951776);
diff --git a/test/sqls/challengeUnregistration/jive__select_jiveuserperm b/test/sqls/challengeUnregistration/jive__select_jiveuserperm
new file mode 100755
index 000000000..68027c47f
--- /dev/null
+++ b/test/sqls/challengeUnregistration/jive__select_jiveuserperm
@@ -0,0 +1 @@
+* from jiveuserperm where userid = 400011;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/jive__select_jiveuserperm.json b/test/sqls/challengeUnregistration/jive__select_jiveuserperm.json
new file mode 100755
index 000000000..d03eccdf0
--- /dev/null
+++ b/test/sqls/challengeUnregistration/jive__select_jiveuserperm.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "jive__select_jiveuserperm",
+  "db"      : "jive",
+  "sqlfile" : "jive__select_jiveuserperm"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__clean b/test/sqls/challengeUnregistration/tcs_catalog__clean
new file mode 100755
index 000000000..ea45daf34
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__clean
@@ -0,0 +1,21 @@
+delete from resource_info where resource_id in (select resource_id from resource where project_id > 40000000 and project_id < 40000020);
+delete from component_inquiry where component_inquiry_id > 80000001 and component_inquiry_id < 80000020;
+delete from project_result where user_id = 400011;
+delete from resource where project_id > 40000000 and project_id < 40000020;
+delete from project_result where project_id > 40000000 and project_id < 40000020;
+delete from project_user_audit where project_id > 40000000 and project_id < 40000020;
+delete from component_inquiry where project_id > 40000000 and project_id < 40000020;
+
+delete from project_info where project_id > 40000000 and project_id < 40000020; 
+delete from project_phase where project_id > 40000000 and project_id < 40000020; 
+delete from component_inquiry where project_id > 40000000 and project_id < 40000020;
+delete from project where project_id > 40000000 and project_id < 40000020;
+delete from comp_version_dates_history where comp_vers_id > 40000000 and comp_vers_id < 40000020;
+delete from comp_jive_category_xref where jive_category_id >= 1001 and jive_category_id <= 1003;
+delete from comp_versions where component_id > 40000000 and component_id < 40000020;
+delete from comp_versions where comp_vers_id > 40000000 and comp_vers_id < 40000020;
+delete from comp_catalog where component_id > 40000000 and component_id < 40000020;
+delete from user_rating where user_id = 400011;
+delete from user_reliability where user_id = 400011;
+delete from project_studio_specification where project_studio_spec_id = 1001;
+delete from copilot_profile where copilot_profile_id = 400011;
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__clean.json b/test/sqls/challengeUnregistration/tcs_catalog__clean.json
new file mode 100755
index 000000000..fc515d318
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__clean.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "tcs_catalog__clean",
+  "db"      : "tcs_catalog",
+  "sqlfile" : "tcs_catalog__clean"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__clean.sql b/test/sqls/challengeUnregistration/tcs_catalog__clean.sql
new file mode 100755
index 000000000..ea45daf34
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__clean.sql
@@ -0,0 +1,21 @@
+delete from resource_info where resource_id in (select resource_id from resource where project_id > 40000000 and project_id < 40000020);
+delete from component_inquiry where component_inquiry_id > 80000001 and component_inquiry_id < 80000020;
+delete from project_result where user_id = 400011;
+delete from resource where project_id > 40000000 and project_id < 40000020;
+delete from project_result where project_id > 40000000 and project_id < 40000020;
+delete from project_user_audit where project_id > 40000000 and project_id < 40000020;
+delete from component_inquiry where project_id > 40000000 and project_id < 40000020;
+
+delete from project_info where project_id > 40000000 and project_id < 40000020; 
+delete from project_phase where project_id > 40000000 and project_id < 40000020; 
+delete from component_inquiry where project_id > 40000000 and project_id < 40000020;
+delete from project where project_id > 40000000 and project_id < 40000020;
+delete from comp_version_dates_history where comp_vers_id > 40000000 and comp_vers_id < 40000020;
+delete from comp_jive_category_xref where jive_category_id >= 1001 and jive_category_id <= 1003;
+delete from comp_versions where component_id > 40000000 and component_id < 40000020;
+delete from comp_versions where comp_vers_id > 40000000 and comp_vers_id < 40000020;
+delete from comp_catalog where component_id > 40000000 and component_id < 40000020;
+delete from user_rating where user_id = 400011;
+delete from user_reliability where user_id = 400011;
+delete from project_studio_specification where project_studio_spec_id = 1001;
+delete from copilot_profile where copilot_profile_id = 400011;
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__insert_test_data b/test/sqls/challengeUnregistration/tcs_catalog__insert_test_data
new file mode 100755
index 000000000..95c6252c2
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__insert_test_data
@@ -0,0 +1,84 @@
+INSERT INTO project (project_id, project_status_id, project_category_id, create_user, create_date, modify_user, modify_date, tc_direct_project_id, project_studio_spec_id) VALUES (40000001, 1, 2, 132456, CURRENT, 132456, CURRENT, 40000011, null);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000001, 6, 'Java Throttle 1.0', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000001, 2, '40000001', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000001, 4, '1001', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO comp_catalog (component_id, current_version, short_desc, component_name, description, function_desc, create_time, status_id, root_category_id, modify_date, public_ind) VALUES ('40000001', '1', 'Coolest component ever', 'Component 4', 'Coolest component ever', 'Component', CURRENT, '1', '5801776', CURRENT, '0');
+
+INSERT INTO comp_versions (comp_vers_id, component_id, version, version_text, create_time, phase_id, phase_time, price, comments, modify_date, suspended_ind) VALUES ('40000001', '40000001', '1', '1.0', CURRENT, '113', '1976-05-04 00:00:00.0', '1000.00', 'Cool', CURRENT, '0');
+
+INSERT INTO comp_jive_category_xref	(comp_vers_id, jive_category_id) VALUES ('40000001', 1001);
+
+INSERT INTO comp_version_dates_history (comp_version_dates_history_id, comp_vers_id,  phase_id , initial_submission_date) VALUES (40000001, 40000001, 113, CURRENT);
+
+INSERT INTO resource (resource_id, resource_role_id, project_id, create_user, create_date, modify_user, modify_date) VALUES (40000001, 1, 40000001, 400011, current, 400011, current);
+
+INSERT INTO resource_info (resource_id, resource_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000001, 1, 400011, 400011, current, 400011, current);
+
+INSERT INTO tcs_catalog:component_inquiry (component_inquiry_id, component_id, user_id, comment, agreed_to_terms, rating, phase, tc_user_id, version, create_time, project_id) VALUES (80000001, 40000001, 400011, 'Cool', 1, 0, 113, 400011, 1, current, 40000001);
+
+INSERT INTO tcs_catalog:project_result (user_id, project_id, old_rating, new_rating, raw_score, final_score, payment, placed, rating_ind, valid_submission_ind, create_date, modify_date, passed_review_ind, point_adjustment, rating_order) VALUES	(400011, 40000001, 0, 1, 80, 90, 1, 0, 0, 0, current, current, 1, 1, 1);
+
+INSERT INTO project_studio_specification(project_studio_spec_id,contest_description,create_user,create_date,modify_user,modify_date) VALUES (1001,'Description of Studio Contest 40000002.','132456',CURRENT,'132456',CURRENT);
+
+INSERT INTO project_phase (project_phase_id, project_id, phase_type_id, phase_status_id, fixed_start_time, scheduled_start_time, scheduled_end_time, actual_start_time, actual_end_time, duration, create_user, create_date, modify_user, modify_date) VALUES (40000001, 40000001, 1, 2, null, CURRENT + -44640 UNITS MINUTE, CURRENT + -36000 UNITS MINUTE, CURRENT + -44640 UNITS MINUTE, null, 518400000, 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO project (project_id, project_status_id, project_category_id, create_user, create_date, modify_user, modify_date, tc_direct_project_id, project_studio_spec_id) VALUES (40000002, 1, 20, 132456, CURRENT, 132456, CURRENT, 40000012, 1001);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000002, 6, 'Hestia Business Information', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000002, 2, '40000002', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000002, 4, '1001', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO comp_catalog (component_id, current_version, short_desc, component_name, description, function_desc, create_time, status_id, root_category_id, modify_date, public_ind) VALUES ('40000002', '1', 'Coolest component ever', 'Component 4', 'Coolest component ever', 'Component', CURRENT, '1', '5801776', CURRENT, '0');
+
+INSERT INTO comp_versions (comp_vers_id, component_id, version, version_text, create_time, phase_id, phase_time, price, comments, modify_date, suspended_ind) VALUES ('40000002', '40000002', '1', '1.0', CURRENT, '131', '1976-05-04 00:00:00.0', '1000.00', 'Cool', CURRENT, '0');
+
+INSERT INTO comp_jive_category_xref	(comp_vers_id, jive_category_id) VALUES ('40000002', 1002);
+
+INSERT INTO resource (resource_id, resource_role_id, project_id, create_user, create_date, modify_user, modify_date) VALUES (40000002, 1, 40000002, 400011, current, 400011, current);
+
+INSERT INTO resource_info (resource_id, resource_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000002, 1, 400011, 400011, current, 400011, current);
+
+INSERT INTO project_phase (project_phase_id, project_id, phase_type_id, phase_status_id, fixed_start_time, scheduled_start_time, scheduled_end_time, actual_start_time, actual_end_time, duration, create_user, create_date, modify_user, modify_date) VALUES (40000002, 40000002, 1, 2, null, CURRENT + -44640 UNITS MINUTE, CURRENT + -36000 UNITS MINUTE, CURRENT + -44640 UNITS MINUTE, null, 518400000, 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO user_rating (user_id, rating, phase_id, last_rated_project_id) values (400011, 0, 113, null);
+
+INSERT INTO user_reliability (user_id, rating, phase_id) values (400011, null, 113);
+
+INSERT INTO user_rating (user_id, rating, phase_id, last_rated_project_id) values (400011, 3000, 131, 40000003);
+
+INSERT INTO user_reliability (user_id, rating, phase_id) values (400011, 1.00, 131);
+
+INSERT INTO project (project_id, project_status_id, project_category_id, create_user, create_date, modify_user, modify_date, tc_direct_project_id, project_studio_spec_id) VALUES (40000003, 1, 29, 132456, CURRENT, 132456, CURRENT, 40000011, null);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000003, 6, 'Java Throttle 1.0', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000003, 2, '40000003', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000003, 4, '1001', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO comp_catalog (component_id, current_version, short_desc, component_name, description, function_desc, create_time, status_id, root_category_id, modify_date, public_ind) VALUES ('40000003', '1', 'Coolest component ever', 'Component 4', 'Coolest component ever', 'Component', CURRENT, '1', '5801776', CURRENT, '0');
+
+INSERT INTO comp_versions (comp_vers_id, component_id, version, version_text, create_time, phase_id, phase_time, price, comments, modify_date, suspended_ind) VALUES ('40000003', '40000003', '1', '1.0', CURRENT, '113', '1976-05-04 00:00:00.0', '1000.00', 'Cool', CURRENT, '0');
+
+INSERT INTO resource (resource_id, resource_role_id, project_id, create_user, create_date, modify_user, modify_date) VALUES (40000003, 1, 40000003, 400011, current, 400011, current);
+
+INSERT INTO resource_info (resource_id, resource_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000003, 1, 400011, 400011, current, 400011, current);
+
+INSERT INTO component_inquiry (component_inquiry_id, component_id, user_id, comment, agreed_to_terms, rating, phase, tc_user_id, version, create_time, project_id) VALUES (80000003, 40000003, 400011, 'Cool3', 1, 0, 113, 400011, 1, current, 40000003);
+
+INSERT INTO project_result (user_id, project_id, old_rating, new_rating, raw_score, final_score, payment, placed, rating_ind, valid_submission_ind, create_date, modify_date, passed_review_ind, point_adjustment, rating_order) VALUES (400011, 40000003, 0, 1, 80, 90, 1, 0, 0, 0, current, current, 1, 1, 1);
+
+INSERT INTO comp_jive_category_xref	(comp_vers_id, jive_category_id) VALUES ('40000003', 1003);
+
+INSERT INTO comp_version_dates_history (comp_version_dates_history_id, comp_vers_id,  phase_id , initial_submission_date) VALUES (40000003, 40000003, 113, CURRENT);
+
+INSERT INTO project_phase (project_phase_id, project_id, phase_type_id, phase_status_id, fixed_start_time, scheduled_start_time, scheduled_end_time, actual_start_time, actual_end_time, duration, create_user, create_date, modify_user, modify_date) VALUES (40000003, 40000003, 1, 2, null, CURRENT + -44640 UNITS MINUTE, CURRENT + -36000 UNITS MINUTE, CURRENT + -44640 UNITS MINUTE, null, 518400000, 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO copilot_profile(copilot_profile_id, user_id, copilot_profile_status_id, suspension_count, reliability, create_user, create_date, update_user, update_date)
+VALUES(400011, 400011, 1, 1, 50, 132456, CURRENT, 132456, CURRENT);
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__insert_test_data.json b/test/sqls/challengeUnregistration/tcs_catalog__insert_test_data.json
new file mode 100755
index 000000000..b47388df7
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__insert_test_data.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "tcs_catalog__insert_test_data",
+  "db"      : "tcs_catalog",
+  "sqlfile" : "tcs_catalog__insert_test_data"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__insert_test_data.sql b/test/sqls/challengeUnregistration/tcs_catalog__insert_test_data.sql
new file mode 100755
index 000000000..74d5c4d62
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__insert_test_data.sql
@@ -0,0 +1,40 @@
+INSERT INTO project (project_id, project_status_id, project_category_id, create_user, create_date, modify_user, modify_date, tc_direct_project_id, project_studio_spec_id) VALUES (40000001, 1, 2, 132456, CURRENT, 132456, CURRENT, 40000011, null);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000001, 6, 'Java Throttle 1.0', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000001, 2, '40000001', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO comp_catalog (component_id, current_version, short_desc, component_name, description, function_desc, create_time, status_id, root_category_id, modify_date, public_ind) VALUES ('40000001', '1', 'Coolest component ever', 'Component 4', 'Coolest component ever', 'Component', CURRENT, '1', '5801776', CURRENT, '0');
+
+INSERT INTO comp_versions (comp_vers_id, component_id, version, version_text, create_time, phase_id, phase_time, price, comments, modify_date, suspended_ind) VALUES ('40000001', '40000001', '1', '1.0', CURRENT, '113', '1976-05-04 00:00:00.0', '1000.00', 'Cool', CURRENT, '0');
+
+INSERT INTO comp_jive_category_xref	(comp_vers_id, jive_category_id) VALUES ('40000001', 1001);
+
+INSERT INTO comp_version_dates_history (comp_version_dates_history_id, comp_vers_id,  phase_id , initial_submission_date) VALUES (40000001, 40000001, 113, CURRENT);
+
+INSERT INTO project_studio_specification(project_studio_spec_id,contest_description,create_user,create_date,modify_user,modify_date) VALUES (1,'Description of Studio Contest 40000002.','132456',CURRENT,'132456',CURRENT);
+
+INSERT INTO project_phase (project_phase_id, project_id, phase_type_id, phase_status_id, fixed_start_time, scheduled_start_time, scheduled_end_time, actual_start_time, actual_end_time, duration, create_user, create_date, modify_user, modify_date) VALUES (40000001, 40000001, 1, 2, null, CURRENT + -44640 UNITS MINUTE, CURRENT + -36000 UNITS MINUTE, CURRENT + -44640 UNITS MINUTE, null, 518400000, 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO project (project_id, project_status_id, project_category_id, create_user, create_date, modify_user, modify_date, tc_direct_project_id, project_studio_spec_id) VALUES (40000002, 1, 20, 132456, CURRENT, 132456, CURRENT, 40000012, 1);
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000002, 6, 'Hestia Business Information', 132456, CURRENT, 132456, CURRENT);
+
+
+INSERT INTO project_info (project_id, project_info_type_id, value, create_user, create_date, modify_user, modify_date) VALUES (40000002, 2, '40000002', 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO comp_catalog (component_id, current_version, short_desc, component_name, description, function_desc, create_time, status_id, root_category_id, modify_date, public_ind) VALUES ('40000002', '1', 'Coolest component ever', 'Component 4', 'Coolest component ever', 'Component', CURRENT, '1', '5801776', CURRENT, '0');
+
+INSERT INTO comp_versions (comp_vers_id, component_id, version, version_text, create_time, phase_id, phase_time, price, comments, modify_date, suspended_ind) VALUES ('40000002', '40000002', '1', '1.0', CURRENT, '131', '1976-05-04 00:00:00.0', '1000.00', 'Cool', CURRENT, '0');
+
+INSERT INTO comp_jive_category_xref	(comp_vers_id, jive_category_id) VALUES ('40000002', 1002);
+
+INSERT INTO project_phase (project_phase_id, project_id, phase_type_id, phase_status_id, fixed_start_time, scheduled_start_time, scheduled_end_time, actual_start_time, actual_end_time, duration, create_user, create_date, modify_user, modify_date) VALUES (40000002, 40000002, 1, 2, null, CURRENT + -44640 UNITS MINUTE, CURRENT + -36000 UNITS MINUTE, CURRENT + -44640 UNITS MINUTE, null, 518400000, 132456, CURRENT, 132456, CURRENT);
+
+INSERT INTO user_rating (user_id, rating, phase_id, last_rated_project_id) values (400011, 0, 113, null);
+
+INSERT INTO user_reliability (user_id, rating, phase_id) values (400011, null, 113);
+
+INSERT INTO user_rating (user_id, rating, phase_id, last_rated_project_id) values (400011, 3000, 131, 40000003);
+
+INSERT INTO user_reliability (user_id, rating, phase_id) values (400011, 1.00, 131);
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_component_inquiry b/test/sqls/challengeUnregistration/tcs_catalog__select_component_inquiry
new file mode 100755
index 000000000..3793443f6
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_component_inquiry
@@ -0,0 +1 @@
+* FROM component_inquiry WHERE component_id = 40000001;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_component_inquiry.json b/test/sqls/challengeUnregistration/tcs_catalog__select_component_inquiry.json
new file mode 100755
index 000000000..ae723df78
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_component_inquiry.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "tcs_catalog__select_component_inquiry",
+  "db"      : "tcs_catalog",
+  "sqlfile" : "tcs_catalog__select_component_inquiry"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_project_result b/test/sqls/challengeUnregistration/tcs_catalog__select_project_result
new file mode 100755
index 000000000..2a8336566
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_project_result
@@ -0,0 +1 @@
+* FROM project_result WHERE project_id = 40000001;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_project_result.json b/test/sqls/challengeUnregistration/tcs_catalog__select_project_result.json
new file mode 100755
index 000000000..e708f40a1
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_project_result.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "tcs_catalog__select_project_result",
+  "db"      : "tcs_catalog",
+  "sqlfile" : "tcs_catalog__select_project_result"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_component_inquiry b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_component_inquiry
new file mode 100755
index 000000000..75b960cb7
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_component_inquiry
@@ -0,0 +1 @@
+* FROM component_inquiry WHERE project_id = 40000001;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_component_inquiry.json b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_component_inquiry.json
new file mode 100755
index 000000000..ba02d2d5e
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_component_inquiry.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "tcs_catalog__select_software_challenge_component_inquiry",
+  "db"      : "tcs_catalog",
+  "sqlfile" : "tcs_catalog__select_software_challenge_component_inquiry"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource
new file mode 100755
index 000000000..e538ec1ee
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource
@@ -0,0 +1 @@
+* FROM resource WHERE project_id = 40000001;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource.json b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource.json
new file mode 100755
index 000000000..816144594
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "tcs_catalog__select_software_challenge_resource",
+  "db"      : "tcs_catalog",
+  "sqlfile" : "tcs_catalog__select_software_challenge_resource"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource_info b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource_info
new file mode 100755
index 000000000..c6a7175b2
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource_info
@@ -0,0 +1,3 @@
+(SELECT i.value FROM resource_info i WHERE r.resource_id = i.resource_id AND i.resource_info_type_id = 1 ) AS user_id,
+(SELECT i.value FROM resource_info i WHERE r.resource_id = i.resource_id AND i.resource_info_type_id = 2 ) AS handle
+FROM resource r WHERE project_id = 40000001;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource_info.json b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource_info.json
new file mode 100755
index 000000000..5e5123c56
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_software_challenge_resource_info.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "tcs_catalog__select_software_challenge_resource_info",
+  "db"      : "tcs_catalog",
+  "sqlfile" : "tcs_catalog__select_software_challenge_resource_info"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource b/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource
new file mode 100755
index 000000000..b0d456f35
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource
@@ -0,0 +1 @@
+* FROM resource WHERE project_id = 40000002;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource.json b/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource.json
new file mode 100755
index 000000000..e0ce21a71
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "tcs_catalog__select_studio_challenge_resource",
+  "db"      : "tcs_catalog",
+  "sqlfile" : "tcs_catalog__select_studio_challenge_resource"
+}
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource_info b/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource_info
new file mode 100755
index 000000000..b50384897
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource_info
@@ -0,0 +1,4 @@
+(SELECT i.value FROM resource_info i WHERE r.resource_id = i.resource_id AND i.resource_info_type_id = 1 ) AS user_id,
+(SELECT i.value FROM resource_info i WHERE r.resource_id = i.resource_id AND i.resource_info_type_id = 2 ) AS handle,
+(SELECT i.value FROM resource_info i WHERE r.resource_id = i.resource_id AND i.resource_info_type_id = 8 ) AS payments
+FROM resource r WHERE project_id = 40000002;
\ No newline at end of file
diff --git a/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource_info.json b/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource_info.json
new file mode 100755
index 000000000..fbe5a466f
--- /dev/null
+++ b/test/sqls/challengeUnregistration/tcs_catalog__select_studio_challenge_resource_info.json
@@ -0,0 +1,5 @@
+{
+  "name"    : "tcs_catalog__select_studio_challenge_resource_info",
+  "db"      : "tcs_catalog",
+  "sqlfile" : "tcs_catalog__select_studio_challenge_resource_info"
+}
\ No newline at end of file
diff --git a/test/test.challengeUnregistration.js b/test/test.challengeUnregistration.js
new file mode 100755
index 000000000..85f776350
--- /dev/null
+++ b/test/test.challengeUnregistration.js
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 2013 - 2014 TopCoder Inc., All Rights Reserved.
+ *
+ * @version 1.0
+ * @author bugbuka
+ */
+"use strict";
+/*global describe, it, before, beforeEach, after, afterEach */
+/*jslint node: true, stupid: true, unparam: true */
+
+/**
+ * Module dependencies.
+ */
+var fs = require('fs');
+var supertest = require('supertest');
+var assert = require('chai').assert;
+var async = require('async');
+var _ = require('underscore');
+var testHelper = require('./helpers/testHelper');
+var SQL_DIR =  __dirname + "/sqls/challengeUnregistration/";
+var SQL_DIR2 = "sqls/challengeUnregistration/";
+var TEST_FILE_DIR = "test/test_files/";
+
+var API_ENDPOINT = process.env.API_ENDPOINT || 'http://localhost:8080';
+
+var grantForumAccess = require('../config').config.general.grantForumAccess;
+/**
+ * Objects and values required for generating the OAuth token
+ */
+var CLIENT_ID = require('../config').config.general.oauthClientId;
+var SECRET = require('../config').config.general.oauthClientSecret;
+var jwt = require('jsonwebtoken');
+
+describe('Challenge Unregistration API', function () {
+    this.timeout(120000); // The api with testing remote db could be quit slow
+
+    /**
+     * Users that we have setup.
+     */
+    var user11 = 'facebook|fb400011',
+        user12 = 'facebook|fb400012';
+
+    /**
+     * Return the authentication header to be used for the given user.
+     * @param {Object} user the user to authenticate
+     */
+    function getAuthHeader(user) {
+        var authHeader = "Bearer " + jwt.sign({sub: user}, SECRET, {expiresInMinutes: 1000, audience: CLIENT_ID});
+        return authHeader;
+    }
+
+    /**
+     * Clear database
+     * @param {Function<err>} done the callback
+     */
+    function clearDb(done) {
+        async.series([
+            function (cb) {
+                if (grantForumAccess !== true) {
+                    cb();
+                    return;
+                }
+                testHelper.runSqlFile(SQL_DIR + "jive__clean", "jive", cb);
+            },
+            function (cb) {
+                testHelper.runSqlFile(SQL_DIR + "tcs_catalog__clean", "tcs_catalog", cb);
+            },
+            function (cb) {
+                testHelper.runSqlFile(SQL_DIR + "common_oltp__clean", "common_oltp", cb);
+            },
+            function (cb) {
+                testHelper.runSqlFile(SQL_DIR + "informixoltp__clean", "informixoltp", cb);
+            }
+        ], done);
+    }
+
+    /**
+     * This function is run before all tests.
+     * Generate tests data.
+     * @param {Function<err>} done the callback
+     */
+    before(function (done) {
+        async.series([
+            clearDb,
+            function (cb) {
+                if (grantForumAccess !== true) {
+                    cb();
+                    return;
+                }
+                testHelper.runSqlFile(SQL_DIR + "jive__insert_test_data", "jive", cb);
+            },
+            function (cb) {
+                testHelper.runSqlFile(SQL_DIR + "common_oltp__insert_test_data", "common_oltp", cb);
+            },
+            function (cb) {
+                testHelper.runSqlFile(SQL_DIR + "tcs_catalog__insert_test_data", "tcs_catalog", cb);
+            },
+            function (cb) {
+                testHelper.runSqlFile(SQL_DIR + "informixoltp__insert_test_data", "informixoltp", cb);
+            }
+        ], done);
+    });
+    /**
+     * This function is run after all tests.
+     * Clean up all data.
+     * @param {Function<err>} done the callback
+     */
+    after(function (done) {
+        clearDb(done);
+    });
+
+    //validate against a table
+    function validateTable(sqlfile, done) {
+        console.log("Now validate based on sqlfile: " + sqlfile);
+        async.waterfall([
+            function (callback) {
+                testHelper.runSqlFromJSON(sqlfile, true, callback);
+            },
+            function (result, callback) {
+                console.log('The query result:' + JSON.stringify(result));
+                assert.ok(result.length === 0, 'result is empty');
+                console.log('matched');
+                callback(null, null);
+            }
+        ], done);
+    }
+
+    //validateDatabase for test successInput
+    function validateDatabaseForDevelop(done) {
+        async.series([
+            function (callback) {
+                validateTable(
+                    SQL_DIR2 + "tcs_catalog__select_component_inquiry.json",
+                    callback
+                );
+            },
+            function (callback) {
+                validateTable(
+                    SQL_DIR2 + "tcs_catalog__select_project_result.json",
+                    callback
+                );
+            },
+            function (callback) {
+                validateTable(
+                    SQL_DIR2 + "tcs_catalog__select_software_challenge_resource.json",
+                    callback
+                );
+            },
+            function (callback) {
+                validateTable(
+                    SQL_DIR2 + "tcs_catalog__select_software_challenge_resource_info.json",
+                    callback
+                );
+            },
+            function (callback) {
+                validateTable(
+                    SQL_DIR2 + "tcs_catalog__select_software_challenge_component_inquiry.json",
+                    callback
+                );
+            },
+            function (callback) {
+                if (grantForumAccess !== true) {
+                    callback();
+                    return;
+                }
+
+                validateTable(
+                    SQL_DIR2 + "jive__select_jiveuserperm.json",
+                    callback
+                );
+            }
+        ], done);
+    }
+
+    //validateDatabase for test successInput
+    function validateDatabaseForDesign(done) {
+        async.series([
+            function (callback) {
+                validateTable(
+                    SQL_DIR2 + "tcs_catalog__select_studio_challenge_resource.json",
+                    callback
+                );
+            },
+            function (callback) {
+                validateTable(
+                    SQL_DIR2 + "tcs_catalog__select_studio_challenge_resource_info.json",
+                    callback
+                );
+            }
+        ], done);
+    }
+
+    // Check if the data are in expected structure and data
+    it('Unregister software challenge should success', function (done) {
+        supertest(API_ENDPOINT)
+            .post("/v2/challenges/40000001/unregister")
+            .set('Accept', 'application/json')
+            .set('Authorization', getAuthHeader(user11))
+            .expect('Content-Type', /json/)
+            .expect(200)
+            .end(function (err, result) {
+                if (err) {
+                    done(err);
+                    return;
+                }
+                console.log('Registration completed. Now verify the database is the same as predicted data');
+                validateDatabaseForDevelop(done);
+            });
+    });
+
+    // Unreigster again the same user, the same challenge as above, should fail.
+    it('Unregister again should fail', function (done) {
+        supertest(API_ENDPOINT)
+            .post("/v2/challenges/40000001/unregister")
+            .set('Accept', 'application/json')
+            .set('Authorization', getAuthHeader(user11))
+            .expect('Content-Type', /json/)
+            .expect(403, done);
+    });
+
+
+    /// Check if the data are in expected structure and data
+    it('Unregister studio challenge should success', function (done) {
+        supertest(API_ENDPOINT)
+            .post("/v2/challenges/40000002/unregister")
+            .set('Accept', 'application/json')
+            .set('Authorization', getAuthHeader(user11))
+            .expect('Content-Type', /json/)
+            .expect(200)
+            .end(function (err, result) {
+                if (err) {
+                    done(err);
+                    return;
+                }
+                validateDatabaseForDesign(done);
+            });
+    });
+
+    // Check if the data are in expected structure and data
+    // It's a copilot posting challenge.
+    it('User unregister a copilot posting challenge', function (done) {
+        supertest(API_ENDPOINT)
+            .post("/v2/challenges/40000003/unregister")
+            .set('Accept', 'application/json')
+            .set('Authorization', getAuthHeader(user11))
+            .expect('Content-Type', /json/)
+            .expect(200)
+            .end(function (err, result) {
+                if (err) {
+                    done(err);
+                    return;
+                }
+                console.log('Registration completed. Now verify the database is the same as predicted data');
+                validateDatabaseForDevelop(done);
+            });
+    });
+
+    // negative challengeId number.
+    it('negative challenge number', function (done) {
+        supertest(API_ENDPOINT)
+            .post("/v2/challenges/-40000002/unregister")
+            .set('Accept', 'application/json')
+            .set('Authorization', getAuthHeader(user12))
+            .expect('Content-Type', /json/)
+            .expect(400, done);
+    });
+
+    // the challengeId param is not a number.
+    it('Challenge is NOT a number', function (done) {
+        supertest(API_ENDPOINT)
+            .post("/v2/challenges/NAN/unregister")
+            .set('Accept', 'application/json')
+            .set('Authorization', getAuthHeader(user12))
+            .expect('Content-Type', /json/)
+            .expect(400, done);
+    });
+
+    // the challengeId param exceed MAX_INT.
+    it('Challenge number exceed MAX_INT', function (done) {
+        supertest(API_ENDPOINT)
+            .post("/v2/challenges/214748364700/unregister")
+            .set('Accept', 'application/json')
+            .set('Authorization', getAuthHeader(user12))
+            .expect('Content-Type', /json/)
+            .expect(400, done);
+    });
+});
\ No newline at end of file