diff --git a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/RegionDecorator.kt b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/RegionDecorator.kt
index 7f5ce13de88bfe58f1a4b23167d3856796fbc8f8..366d310c57157f568ce853c44b8a7f34713df8bf 100644
--- a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/RegionDecorator.kt
+++ b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/RegionDecorator.kt
@@ -104,15 +104,8 @@ class RegionDecorator : ClientCodegenDecorator {
             adhocCustomization<SdkConfigSection.CopySdkConfigToClientConfig> { section ->
                 rust(
                     """
-                    ${section.serviceConfigBuilder}.set_region(
-                        ${section.sdkConfig}
-                            .service_config()
-                            .and_then(|conf| {
-                                conf.load_config(service_config_key($envKey, $profileKey))
-                                    .map(Region::new)
-                            })
-                            .or_else(|| ${section.sdkConfig}.region().cloned()),
-                    );
+                    ${section.serviceConfigBuilder} =
+                         ${section.serviceConfigBuilder}.region(${section.sdkConfig}.region().cloned());
                     """,
                 )
             }
diff --git a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/SdkConfigDecorator.kt b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/SdkConfigDecorator.kt
index 2b1872c569b08ce9f461c9260d3a2de6e886d719..f071835fc4ef5618ad26dcc8fd8e229c6581c911 100644
--- a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/SdkConfigDecorator.kt
+++ b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/SdkConfigDecorator.kt
@@ -20,8 +20,6 @@ import software.amazon.smithy.rust.codegen.core.smithy.customize.AdHocCustomizat
 import software.amazon.smithy.rust.codegen.core.smithy.customize.AdHocSection
 import software.amazon.smithy.rust.codegen.core.smithy.customize.adhocCustomization
 import software.amazon.smithy.rust.codegen.core.smithy.customize.writeCustomizations
-import software.amazon.smithy.rust.codegen.core.util.dq
-import software.amazon.smithy.rust.codegen.core.util.toSnakeCase
 
 sealed class SdkConfigSection(name: String) : AdHocSection(name) {
     /**
@@ -56,18 +54,8 @@ object SdkConfigCustomization {
         map: Writable?,
     ) = adhocCustomization<SdkConfigSection.CopySdkConfigToClientConfig> { section ->
         val mapBlock = map?.let { writable { rust(".map(#W)", it) } } ?: writable { }
-        val envKey = "AWS_${fieldName.toSnakeCase().uppercase()}".dq()
-        val profileKey = fieldName.toSnakeCase().dq()
-
         rustTemplate(
-            """
-            ${section.serviceConfigBuilder}.set_$fieldName(
-                ${section.sdkConfig}
-                    .service_config()
-                    .and_then(|conf| conf.load_config(service_config_key($envKey, $profileKey)).map(|it| it.parse().unwrap()))
-                    .or_else(|| ${section.sdkConfig}.$fieldName()#{map})
-            );
-            """,
+            "${section.serviceConfigBuilder}.set_$fieldName(${section.sdkConfig}.$fieldName()#{map});",
             "map" to mapBlock,
         )
     }
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 498a155a287901da8e50ebb9deec022900a67634..8af54cfe6e86ad0a61c0638bca9b54be010cac61 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
@@ -28,21 +28,17 @@ import software.amazon.smithy.rust.codegen.client.smithy.generators.OperationGen
 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.core.rustlang.Writable
-import software.amazon.smithy.rust.codegen.core.rustlang.rust
 import software.amazon.smithy.rust.codegen.core.rustlang.rustBlockTemplate
 import software.amazon.smithy.rust.codegen.core.rustlang.rustTemplate
 import software.amazon.smithy.rust.codegen.core.rustlang.writable
 import software.amazon.smithy.rust.codegen.core.smithy.CodegenContext
 import software.amazon.smithy.rust.codegen.core.smithy.RuntimeType
-import software.amazon.smithy.rust.codegen.core.smithy.customize.AdHocCustomization
-import software.amazon.smithy.rust.codegen.core.smithy.customize.adhocCustomization
 import software.amazon.smithy.rust.codegen.core.smithy.protocols.ProtocolFunctions
 import software.amazon.smithy.rust.codegen.core.smithy.protocols.ProtocolMap
 import software.amazon.smithy.rust.codegen.core.smithy.protocols.RestXml
 import software.amazon.smithy.rust.codegen.core.smithy.traits.AllowInvalidXmlRoot
 import software.amazon.smithy.rust.codegen.core.util.hasTrait
 import software.amazon.smithy.rust.codegen.core.util.letIf
-import software.amazon.smithy.rustsdk.SdkConfigSection
 import software.amazon.smithy.rustsdk.getBuiltIn
 import software.amazon.smithy.rustsdk.toWritable
 import java.util.logging.Logger
@@ -158,33 +154,6 @@ class S3Decorator : ClientCodegenDecorator {
             }
     }
 
-    override fun extraSections(codegenContext: ClientCodegenContext): List<AdHocCustomization> {
-        return listOf(
-            adhocCustomization<SdkConfigSection.CopySdkConfigToClientConfig> { section ->
-                rust(
-                    """
-                    ${section.serviceConfigBuilder}.set_disable_multi_region_access_points(
-                        ${section.sdkConfig}
-                            .service_config()
-                            .and_then(|conf| {
-                                let str_config = conf.load_config(service_config_key("AWS_S3_DISABLE_MULTIREGION_ACCESS_POINTS", "s3_disable_multi_region_access_points"));
-                                str_config.and_then(|it| it.parse::<bool>().ok())
-                            }),
-                    );
-                    ${section.serviceConfigBuilder}.set_use_arn_region(
-                        ${section.sdkConfig}
-                            .service_config()
-                            .and_then(|conf| {
-                                let str_config = conf.load_config(service_config_key("AWS_S3_USE_ARN_REGION", "s3_use_arn_region"));
-                                str_config.and_then(|it| it.parse::<bool>().ok())
-                            }),
-                    );
-                    """,
-                )
-            },
-        )
-    }
-
     private fun isInInvalidXmlRootAllowList(shape: Shape): Boolean {
         return shape.isStructureShape && invalidXmlRootAllowList.contains(shape.id)
     }
diff --git a/aws/sdk/integration-tests/dynamodb/Cargo.toml b/aws/sdk/integration-tests/dynamodb/Cargo.toml
index 135d5f8a431e4064f168742cff197c510ee0796e..fabca6704ca3fe7c3a263f9e3b0277cced928fc2 100644
--- a/aws/sdk/integration-tests/dynamodb/Cargo.toml
+++ b/aws/sdk/integration-tests/dynamodb/Cargo.toml
@@ -13,7 +13,6 @@ publish = false
 [dependencies]
 approx = "0.5.1"
 aws-config = { path = "../../build/aws-sdk/sdk/aws-config" }
-aws-runtime = { path = "../../build/aws-sdk/sdk/aws-runtime" }
 aws-credential-types = { path = "../../build/aws-sdk/sdk/aws-credential-types", features = ["test-util"] }
 aws-sdk-dynamodb = { path = "../../build/aws-sdk/sdk/dynamodb", features = ["behavior-version-latest"] }
 aws-smithy-async = { path = "../../build/aws-sdk/sdk/aws-smithy-async", features = ["test-util"] }
diff --git a/aws/sdk/integration-tests/dynamodb/tests/shared-config.rs b/aws/sdk/integration-tests/dynamodb/tests/shared-config.rs
index 8ff2a3653c0e014567c5420c5c588496e813b6b0..02786fe0afba44cdafc528e590737f958c07753b 100644
--- a/aws/sdk/integration-tests/dynamodb/tests/shared-config.rs
+++ b/aws/sdk/integration-tests/dynamodb/tests/shared-config.rs
@@ -3,13 +3,9 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-use aws_runtime::env_config::file::{EnvConfigFileKind, EnvConfigFiles};
-use aws_sdk_dynamodb::config::{
-    BehaviorVersion, Credentials, Region, StalledStreamProtectionConfig,
-};
+use aws_sdk_dynamodb::config::{Credentials, Region, StalledStreamProtectionConfig};
 use aws_smithy_runtime::client::http::test_util::capture_request;
 use http::Uri;
-use std::env;
 
 /// Iterative test of loading clients from shared configuration
 #[tokio::test]
@@ -31,43 +27,3 @@ async fn shared_config_testbed() {
         &Uri::from_static("http://localhost:8000")
     );
 }
-
-#[tokio::test]
-async fn service_config_from_profile() {
-    let _ = tracing_subscriber::fmt::try_init();
-
-    // Remove env vars that could interfere with the test
-    env::remove_var("AWS_DEFAULT_REGION");
-    env::remove_var("AWS_REGION");
-
-    let config = r#"
-[profile custom]
-aws_access_key_id = test-access-key-id
-aws_secret_access_key = test-secret-access-key
-aws_session_token = test-session-token
-region = us-east-1
-services = custom
-
-[services custom]
-dynamodb =
-  region = us-west-1
-"#
-    .trim();
-
-    let shared_config = aws_config::ConfigLoader::default()
-        .behavior_version(BehaviorVersion::latest())
-        .profile_name("custom")
-        .profile_files(
-            EnvConfigFiles::builder()
-                .with_contents(EnvConfigFileKind::Config, config)
-                .build(),
-        )
-        .load()
-        .await;
-    let service_config = aws_sdk_dynamodb::Config::from(&shared_config);
-
-    assert_eq!(
-        service_config.region().unwrap(),
-        &Region::from_static("us-west-1")
-    );
-}