diff --git a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/customize/s3/S3Decorator.kt b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/customize/s3/S3Decorator.kt
index 8af54cfe6e86ad0a61c0638bca9b54be010cac61..6f3577fb98225a3dff154eb105c3976239ac376c 100644
--- a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/customize/s3/S3Decorator.kt
+++ b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/customize/s3/S3Decorator.kt
@@ -27,6 +27,7 @@ import software.amazon.smithy.rust.codegen.client.smithy.generators.OperationCus
 import software.amazon.smithy.rust.codegen.client.smithy.generators.OperationGenerator
 import software.amazon.smithy.rust.codegen.client.smithy.generators.OperationSection
 import software.amazon.smithy.rust.codegen.client.smithy.protocols.ClientRestXmlFactory
+import software.amazon.smithy.rust.codegen.client.smithy.traits.IncompatibleWithStalledStreamProtectionTrait
 import software.amazon.smithy.rust.codegen.core.rustlang.Writable
 import software.amazon.smithy.rust.codegen.core.rustlang.rustBlockTemplate
 import software.amazon.smithy.rust.codegen.core.rustlang.rustTemplate
@@ -59,6 +60,10 @@ class S3Decorator : ClientCodegenDecorator {
             // API returns ListAllMyDirectoryBucketsResult instead of ListDirectoryBucketsOutput
             ShapeId.from("com.amazonaws.s3#ListDirectoryBucketsOutput"),
         )
+    private val operationsIncompatibleWithStalledStreamProtection =
+        setOf(
+            ShapeId.from("com.amazonaws.s3#CopyObject"),
+        )
 
     override fun protocols(
         serviceId: ShapeId,
@@ -81,6 +86,9 @@ class S3Decorator : ClientCodegenDecorator {
             shape.letIf(isInInvalidXmlRootAllowList(shape)) {
                 logger.info("Adding AllowInvalidXmlRoot trait to $it")
                 (it as StructureShape).toBuilder().addTrait(AllowInvalidXmlRoot()).build()
+            }.letIf(operationsIncompatibleWithStalledStreamProtection.contains(shape.id)) {
+                logger.info("Adding IncompatibleWithStalledStreamProtection trait to $it")
+                (it as OperationShape).toBuilder().addTrait(IncompatibleWithStalledStreamProtectionTrait()).build()
             }
         }
             // the model has the bucket in the path
diff --git a/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/generators/config/StalledStreamProtectionConfigCustomization.kt b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/generators/config/StalledStreamProtectionConfigCustomization.kt
index c702c6cb0206a8622c8c8ef62dfc39b2b1c8e20f..58eb2c8a64ca5cdeeb160b03a3ee3884b3870797 100644
--- a/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/generators/config/StalledStreamProtectionConfigCustomization.kt
+++ b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/generators/config/StalledStreamProtectionConfigCustomization.kt
@@ -11,6 +11,7 @@ import software.amazon.smithy.rust.codegen.client.smithy.configReexport
 import software.amazon.smithy.rust.codegen.client.smithy.customize.ClientCodegenDecorator
 import software.amazon.smithy.rust.codegen.client.smithy.generators.OperationCustomization
 import software.amazon.smithy.rust.codegen.client.smithy.generators.OperationSection
+import software.amazon.smithy.rust.codegen.client.smithy.traits.IncompatibleWithStalledStreamProtectionTrait
 import software.amazon.smithy.rust.codegen.core.rustlang.Writable
 import software.amazon.smithy.rust.codegen.core.rustlang.rustTemplate
 import software.amazon.smithy.rust.codegen.core.rustlang.writable
@@ -34,7 +35,7 @@ class StalledStreamProtectionDecorator : ClientCodegenDecorator {
         operation: OperationShape,
         baseCustomizations: List<OperationCustomization>,
     ): List<OperationCustomization> {
-        return baseCustomizations + StalledStreamProtectionOperationCustomization(codegenContext)
+        return baseCustomizations + StalledStreamProtectionOperationCustomization(codegenContext, operation)
     }
 }
 
@@ -111,11 +112,17 @@ class StalledStreamProtectionConfigCustomization(codegenContext: ClientCodegenCo
 
 class StalledStreamProtectionOperationCustomization(
     codegenContext: ClientCodegenContext,
+    private val operationShape: OperationShape,
 ) : OperationCustomization() {
     private val rc = codegenContext.runtimeConfig
 
     override fun section(section: OperationSection): Writable =
         writable {
+            // Don't add the stalled stream protection interceptor if the operation is incompatible with it
+            if (operationShape.hasTrait(IncompatibleWithStalledStreamProtectionTrait.ID)) {
+                return@writable
+            }
+
             when (section) {
                 is OperationSection.AdditionalInterceptors -> {
                     val stalledStreamProtectionModule = RuntimeType.smithyRuntime(rc).resolve("client::stalled_stream_protection")
diff --git a/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/traits/IncompatibleWithStalledStreamProtectionTrait.kt b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/traits/IncompatibleWithStalledStreamProtectionTrait.kt
new file mode 100644
index 0000000000000000000000000000000000000000..658309653b8f1e45f987b0f64d257ae28ab7a0f9
--- /dev/null
+++ b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/traits/IncompatibleWithStalledStreamProtectionTrait.kt
@@ -0,0 +1,19 @@
+/*
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package software.amazon.smithy.rust.codegen.client.smithy.traits
+
+import software.amazon.smithy.model.node.Node
+import software.amazon.smithy.model.shapes.ShapeId
+import software.amazon.smithy.model.traits.AnnotationTrait
+
+/**
+ * Indicates that an operation shape is incompatible with stalled stream protection.
+ */
+class IncompatibleWithStalledStreamProtectionTrait : AnnotationTrait(ID, Node.objectNode()) {
+    companion object {
+        val ID: ShapeId = ShapeId.from("software.amazon.smithy.rust.codegen.client.smithy.traits#incompatibleWithStalledStreamProtectionTrait")
+    }
+}