diff --git a/docs/design/core/progress-listener/README.md b/docs/design/core/progress-listener/README.md
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+**Design:** New Feature, **Status:** [In Development](../../../README.md)
+
+# Project Tenets (unless you know better ones)
+
+1. Recording progress events should have minimal impact on the application performance.
+
+2. The supported progress event types should have minimum overlaps with existing execution interceptors. [To discuss]
+
+3. Progress events and publisher should be extensible.
+
+# Introduction
+
+This project provides Progress Listeners feature, which allows customers to track the progress of executions for streaming operations and execute callbacks
+on different progress events. 
+
+# Default Progress Event Types
+
+- Byte Counting Events
+
+```java
+
+        /**
+         * Event of the content length to be sent in a request.
+         */
+        REQUEST_CONTENT_LENGTH_EVENT,
+        /**
+         * Event of the content length received in a response.
+         */
+        RESPONSE_CONTENT_LENGTH_EVENT,
+
+        /**
+         * Used to indicate the number of bytes to be sent to the services.
+         */
+        REQUEST_BYTE_TRANSFER_EVENT,
+
+        /**
+         * Used to indicate the number of bytes received from services.
+         */
+        RESPONSE_BYTE_TRANSFER_EVENT,
+    
+ ```   
+
+- Request/Response Events
+
+```java 
+
+
+        ////////////////////////////////////////
+        // Byte counting progress events
+        ////////////////////////////////////////
+        /**
+         * Used to indicate the request body has been cancelled.
+         */
+        REQUEST_BODY_CANCEL_EVENT,
+
+        /**
+         * Used to indicate the request body is complete.
+         */
+        REQUEST_BODY_COMPLETE_EVENT,
+
+        /**
+         * Used to indicate the request has been reset.
+         */
+        REQUEST_BODY_RESET_EVENT,
+
+        RESPONSE_BODY_CANCEL_EVENT,
+
+        RESPONSE_BODY_COMPLETE_EVENT,
+
+        RESPONSE_BODY_RESET_EVENT
+
+```
+
+# Configuration
+```java
+
+        ProgressEventListener eventListener = progressEvent -> {
+            System.out.println(progressEvent);
+            return CompletableFuture.completedFuture(null);
+        };
+
+        S3AsyncClient.builder()
+                     .overrideConfiguration(b -> b.addProgressListener(eventListener))
+                     //.overrideConfiguration(b -> b.progressListeners(Collections.singletonList(eventListener)))
+                     .build();
+
+    }
+```
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diff --git a/docs/design/core/progress-listener/prototype.java b/docs/design/core/progress-listener/prototype.java
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+package software.amazon.awssdk.core.progress;
+
+/**
+ * Listener interface to listen to the progress events.
+ *
+ * @see ProgressEvent the progress event
+ */
+@SdkPublicApi
+@FunctionalInterface
+public interface ProgressEventListener {
+
+    /**
+     * Data notification sent by the {@link ProgressEventPublisher} when an event is available.
+     *
+     * <p>
+     * It is recommended to process the events in a non-blocking way
+     *
+     * @param progressEvent the progress event
+     * @return the complete future
+     */
+    CompletableFuture<?> onProgressEvent(ProgressEvent progressEvent);
+}
+
+/**
+ * interface to publish {@link ProgressEvent}s to {@link ProgressEventListener}s.
+ */
+@SdkPublicApi
+@FunctionalInterface
+public interface ProgressEventPublisher {
+
+    /**
+     * Publish the progress events
+     *
+     * @param progressEvent the event to publish
+     * @return the future contains the results whether the publish is successful or not.
+     */
+    CompletableFuture<?> publishProgressEvent(ProgressEvent progressEvent);
+}
+
+/**
+ * A progress event. Typically this is used to notify a chunk of bytes has been
+ * transferred. This can also used to notify other types of progress events such as a
+ * transfer starting, or failing.
+ *
+ * @see ProgressEventPublisher
+ * @see ProgressEventListener
+ */
+@SdkPublicApi
+public final class ProgressEvent {
+
+    private final ProgressEventType eventType;
+    private final ProgressEventData eventData;
+
+    private ProgressEvent(ProgressEventType eventType, ProgressEventData eventData) {
+        this.eventType = eventType;
+        this.eventData = eventData;
+    }
+
+    public ProgressEvent(ProgressEventType eventType) {
+        this(eventType, null);
+    }
+
+    public static ProgressEvent create(ProgressEventType eventType) {
+        return new ProgressEvent(eventType);
+    }
+
+    public static ProgressEvent create(ProgressEventType eventType, ProgressEventData eventData) {
+        return new ProgressEvent(eventType, eventData);
+    }
+
+    /**
+     * @return the event type
+     */
+    public ProgressEventType eventType() {
+        return eventType;
+    }
+
+    /**
+     * @return the event data
+     */
+    public Optional<ProgressEventData> eventData() {
+        return Optional.ofNullable(eventData);
+    }
+}
+
+/**
+ * The event data to be sent along within an {@link ProgressEvent}.
+ */
+@SdkPublicApi
+public interface ProgressEventData {
+}
+
+/**
+ * Progress Event type
+ */
+@SdkPublicApi
+public interface ProgressEventType {
+}
+
+/**
+ * Sdk default progress events.
+ */
+@SdkPublicApi
+public enum SdkProgressEventType implements ProgressEventType {
+
+
+    ////////////////////////////////////////
+    // Byte counting progress events
+    ////////////////////////////////////////
+
+    /**
+     * Event of the content length to be sent in a request.
+     */
+    REQUEST_CONTENT_LENGTH_EVENT,
+    /**
+     * Event of the content length received in a response.
+     */
+    RESPONSE_CONTENT_LENGTH_EVENT,
+
+    /**
+     * Used to indicate the number of bytes to be sent to the services.
+     */
+    REQUEST_BYTE_TRANSFER_EVENT,
+
+    /**
+     * Used to indicate the number of bytes received from services.
+     */
+    RESPONSE_BYTE_TRANSFER_EVENT,
+
+    ////////////////////////////////////////
+    // Request/Response progress events
+    ////////////////////////////////////////
+
+    /**
+     * Used to indicate the request body has been cancelled.
+     */
+    REQUEST_BODY_CANCEL_EVENT,
+
+    /**
+     * Used to indicate the request body is complete.
+     */
+    REQUEST_BODY_COMPLETE_EVENT,
+
+    /**
+     * Used to indicate the request has been reset.
+     */
+    REQUEST_BODY_RESET_EVENT,
+
+    RESPONSE_BODY_CANCEL_EVENT,
+
+    RESPONSE_BODY_COMPLETE_EVENT,
+
+    RESPONSE_BODY_RESET_EVENT
+}
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