diff --git a/clients/client-emr/README.md b/clients/client-emr/README.md
index 415da7d50b61..ef56417022c9 100644
--- a/clients/client-emr/README.md
+++ b/clients/client-emr/README.md
@@ -476,6 +476,14 @@ ListStudioSessionMappings
 
 [Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-emr/classes/liststudiosessionmappingscommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-emr/interfaces/liststudiosessionmappingscommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-emr/interfaces/liststudiosessionmappingscommandoutput.html)
 
+</details>
+<details>
+<summary>
+ListSupportedInstanceTypes
+</summary>
+
+[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-emr/classes/listsupportedinstancetypescommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-emr/interfaces/listsupportedinstancetypescommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-emr/interfaces/listsupportedinstancetypescommandoutput.html)
+
 </details>
 <details>
 <summary>
diff --git a/clients/client-emr/src/EMR.ts b/clients/client-emr/src/EMR.ts
index 424f1dbf1adf..76be5836aa24 100644
--- a/clients/client-emr/src/EMR.ts
+++ b/clients/client-emr/src/EMR.ts
@@ -156,6 +156,11 @@ import {
   ListStudioSessionMappingsCommandInput,
   ListStudioSessionMappingsCommandOutput,
 } from "./commands/ListStudioSessionMappingsCommand";
+import {
+  ListSupportedInstanceTypesCommand,
+  ListSupportedInstanceTypesCommandInput,
+  ListSupportedInstanceTypesCommandOutput,
+} from "./commands/ListSupportedInstanceTypesCommand";
 import {
   ModifyClusterCommand,
   ModifyClusterCommandInput,
@@ -280,6 +285,7 @@ const commands = {
   ListStepsCommand,
   ListStudiosCommand,
   ListStudioSessionMappingsCommand,
+  ListSupportedInstanceTypesCommand,
   ModifyClusterCommand,
   ModifyInstanceFleetCommand,
   ModifyInstanceGroupsCommand,
@@ -817,6 +823,23 @@ export interface EMR {
     cb: (err: any, data?: ListStudioSessionMappingsCommandOutput) => void
   ): void;
 
+  /**
+   * @see {@link ListSupportedInstanceTypesCommand}
+   */
+  listSupportedInstanceTypes(
+    args: ListSupportedInstanceTypesCommandInput,
+    options?: __HttpHandlerOptions
+  ): Promise<ListSupportedInstanceTypesCommandOutput>;
+  listSupportedInstanceTypes(
+    args: ListSupportedInstanceTypesCommandInput,
+    cb: (err: any, data?: ListSupportedInstanceTypesCommandOutput) => void
+  ): void;
+  listSupportedInstanceTypes(
+    args: ListSupportedInstanceTypesCommandInput,
+    options: __HttpHandlerOptions,
+    cb: (err: any, data?: ListSupportedInstanceTypesCommandOutput) => void
+  ): void;
+
   /**
    * @see {@link ModifyClusterCommand}
    */
diff --git a/clients/client-emr/src/EMRClient.ts b/clients/client-emr/src/EMRClient.ts
index c1acaa363571..24cacd87ce3f 100644
--- a/clients/client-emr/src/EMRClient.ts
+++ b/clients/client-emr/src/EMRClient.ts
@@ -133,6 +133,10 @@ import {
   ListStudioSessionMappingsCommandInput,
   ListStudioSessionMappingsCommandOutput,
 } from "./commands/ListStudioSessionMappingsCommand";
+import {
+  ListSupportedInstanceTypesCommandInput,
+  ListSupportedInstanceTypesCommandOutput,
+} from "./commands/ListSupportedInstanceTypesCommand";
 import { ModifyClusterCommandInput, ModifyClusterCommandOutput } from "./commands/ModifyClusterCommand";
 import {
   ModifyInstanceFleetCommandInput,
@@ -242,6 +246,7 @@ export type ServiceInputTypes =
   | ListStepsCommandInput
   | ListStudioSessionMappingsCommandInput
   | ListStudiosCommandInput
+  | ListSupportedInstanceTypesCommandInput
   | ModifyClusterCommandInput
   | ModifyInstanceFleetCommandInput
   | ModifyInstanceGroupsCommandInput
@@ -300,6 +305,7 @@ export type ServiceOutputTypes =
   | ListStepsCommandOutput
   | ListStudioSessionMappingsCommandOutput
   | ListStudiosCommandOutput
+  | ListSupportedInstanceTypesCommandOutput
   | ModifyClusterCommandOutput
   | ModifyInstanceFleetCommandOutput
   | ModifyInstanceGroupsCommandOutput
diff --git a/clients/client-emr/src/commands/ListSupportedInstanceTypesCommand.ts b/clients/client-emr/src/commands/ListSupportedInstanceTypesCommand.ts
new file mode 100644
index 000000000000..5a36f08cb3de
--- /dev/null
+++ b/clients/client-emr/src/commands/ListSupportedInstanceTypesCommand.ts
@@ -0,0 +1,169 @@
+// smithy-typescript generated code
+import { EndpointParameterInstructions, getEndpointPlugin } from "@aws-sdk/middleware-endpoint";
+import { getSerdePlugin } from "@aws-sdk/middleware-serde";
+import { Command as $Command } from "@aws-sdk/smithy-client";
+import {
+  FinalizeHandlerArguments,
+  Handler,
+  HandlerExecutionContext,
+  HttpHandlerOptions as __HttpHandlerOptions,
+  MetadataBearer as __MetadataBearer,
+  MiddlewareStack,
+} from "@aws-sdk/types";
+import { HttpRequest as __HttpRequest, HttpResponse as __HttpResponse } from "@smithy/protocol-http";
+import { SerdeContext as __SerdeContext } from "@smithy/types";
+
+import { EMRClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../EMRClient";
+import { ListSupportedInstanceTypesInput, ListSupportedInstanceTypesOutput } from "../models/models_0";
+import { de_ListSupportedInstanceTypesCommand, se_ListSupportedInstanceTypesCommand } from "../protocols/Aws_json1_1";
+
+/**
+ * @public
+ */
+export { __MetadataBearer, $Command };
+/**
+ * @public
+ *
+ * The input for {@link ListSupportedInstanceTypesCommand}.
+ */
+export interface ListSupportedInstanceTypesCommandInput extends ListSupportedInstanceTypesInput {}
+/**
+ * @public
+ *
+ * The output of {@link ListSupportedInstanceTypesCommand}.
+ */
+export interface ListSupportedInstanceTypesCommandOutput extends ListSupportedInstanceTypesOutput, __MetadataBearer {}
+
+/**
+ * @public
+ * <p>A list of the instance types that Amazon EMR supports. You can filter the
+ *          list by Amazon Web Services Region and Amazon EMR release. </p>
+ * @example
+ * Use a bare-bones client and the command you need to make an API call.
+ * ```javascript
+ * import { EMRClient, ListSupportedInstanceTypesCommand } from "@aws-sdk/client-emr"; // ES Modules import
+ * // const { EMRClient, ListSupportedInstanceTypesCommand } = require("@aws-sdk/client-emr"); // CommonJS import
+ * const client = new EMRClient(config);
+ * const input = { // ListSupportedInstanceTypesInput
+ *   ReleaseLabel: "STRING_VALUE", // required
+ *   Marker: "STRING_VALUE",
+ * };
+ * const command = new ListSupportedInstanceTypesCommand(input);
+ * const response = await client.send(command);
+ * // { // ListSupportedInstanceTypesOutput
+ * //   SupportedInstanceTypes: [ // SupportedInstanceTypesList
+ * //     { // SupportedInstanceType
+ * //       Type: "STRING_VALUE",
+ * //       MemoryGB: Number("float"),
+ * //       StorageGB: Number("int"),
+ * //       VCPU: Number("int"),
+ * //       Is64BitsOnly: true || false,
+ * //       InstanceFamilyId: "STRING_VALUE",
+ * //       EbsOptimizedAvailable: true || false,
+ * //       EbsOptimizedByDefault: true || false,
+ * //       NumberOfDisks: Number("int"),
+ * //       EbsStorageOnly: true || false,
+ * //       Architecture: "STRING_VALUE",
+ * //     },
+ * //   ],
+ * //   Marker: "STRING_VALUE",
+ * // };
+ *
+ * ```
+ *
+ * @param ListSupportedInstanceTypesCommandInput - {@link ListSupportedInstanceTypesCommandInput}
+ * @returns {@link ListSupportedInstanceTypesCommandOutput}
+ * @see {@link ListSupportedInstanceTypesCommandInput} for command's `input` shape.
+ * @see {@link ListSupportedInstanceTypesCommandOutput} for command's `response` shape.
+ * @see {@link EMRClientResolvedConfig | config} for EMRClient's `config` shape.
+ *
+ * @throws {@link InternalServerException} (server fault)
+ *  <p>This exception occurs when there is an internal failure in the Amazon EMR
+ *          service.</p>
+ *
+ * @throws {@link InvalidRequestException} (client fault)
+ *  <p>This exception occurs when there is something wrong with user input.</p>
+ *
+ * @throws {@link EMRServiceException}
+ * <p>Base exception class for all service exceptions from EMR service.</p>
+ *
+ */
+export class ListSupportedInstanceTypesCommand extends $Command<
+  ListSupportedInstanceTypesCommandInput,
+  ListSupportedInstanceTypesCommandOutput,
+  EMRClientResolvedConfig
+> {
+  // Start section: command_properties
+  // End section: command_properties
+
+  public static getEndpointParameterInstructions(): EndpointParameterInstructions {
+    return {
+      UseFIPS: { type: "builtInParams", name: "useFipsEndpoint" },
+      Endpoint: { type: "builtInParams", name: "endpoint" },
+      Region: { type: "builtInParams", name: "region" },
+      UseDualStack: { type: "builtInParams", name: "useDualstackEndpoint" },
+    };
+  }
+
+  /**
+   * @public
+   */
+  constructor(readonly input: ListSupportedInstanceTypesCommandInput) {
+    // Start section: command_constructor
+    super();
+    // End section: command_constructor
+  }
+
+  /**
+   * @internal
+   */
+  resolveMiddleware(
+    clientStack: MiddlewareStack<ServiceInputTypes, ServiceOutputTypes>,
+    configuration: EMRClientResolvedConfig,
+    options?: __HttpHandlerOptions
+  ): Handler<ListSupportedInstanceTypesCommandInput, ListSupportedInstanceTypesCommandOutput> {
+    this.middlewareStack.use(getSerdePlugin(configuration, this.serialize, this.deserialize));
+    this.middlewareStack.use(
+      getEndpointPlugin(configuration, ListSupportedInstanceTypesCommand.getEndpointParameterInstructions())
+    );
+
+    const stack = clientStack.concat(this.middlewareStack);
+
+    const { logger } = configuration;
+    const clientName = "EMRClient";
+    const commandName = "ListSupportedInstanceTypesCommand";
+    const handlerExecutionContext: HandlerExecutionContext = {
+      logger,
+      clientName,
+      commandName,
+      inputFilterSensitiveLog: (_: any) => _,
+      outputFilterSensitiveLog: (_: any) => _,
+    };
+    const { requestHandler } = configuration;
+    return stack.resolve(
+      (request: FinalizeHandlerArguments<any>) =>
+        requestHandler.handle(request.request as __HttpRequest, options || {}),
+      handlerExecutionContext
+    );
+  }
+
+  /**
+   * @internal
+   */
+  private serialize(input: ListSupportedInstanceTypesCommandInput, context: __SerdeContext): Promise<__HttpRequest> {
+    return se_ListSupportedInstanceTypesCommand(input, context);
+  }
+
+  /**
+   * @internal
+   */
+  private deserialize(
+    output: __HttpResponse,
+    context: __SerdeContext
+  ): Promise<ListSupportedInstanceTypesCommandOutput> {
+    return de_ListSupportedInstanceTypesCommand(output, context);
+  }
+
+  // Start section: command_body_extra
+  // End section: command_body_extra
+}
diff --git a/clients/client-emr/src/commands/index.ts b/clients/client-emr/src/commands/index.ts
index df9e1bddf25f..e0a83d878546 100644
--- a/clients/client-emr/src/commands/index.ts
+++ b/clients/client-emr/src/commands/index.ts
@@ -33,6 +33,7 @@ export * from "./ListSecurityConfigurationsCommand";
 export * from "./ListStepsCommand";
 export * from "./ListStudioSessionMappingsCommand";
 export * from "./ListStudiosCommand";
+export * from "./ListSupportedInstanceTypesCommand";
 export * from "./ModifyClusterCommand";
 export * from "./ModifyInstanceFleetCommand";
 export * from "./ModifyInstanceGroupsCommand";
diff --git a/clients/client-emr/src/models/models_0.ts b/clients/client-emr/src/models/models_0.ts
index d32ea1379145..9105ad99ee6a 100644
--- a/clients/client-emr/src/models/models_0.ts
+++ b/clients/client-emr/src/models/models_0.ts
@@ -300,10 +300,9 @@ export interface SpotProvisioningSpecification {
   BlockDurationMinutes?: number;
 
   /**
-   * <p>Specifies one of the following strategies to launch Spot Instance fleets: <code>price-capacity-optimized</code>, <code>capacity-optimized</code>, <code>lowest-price</code>, or  <code>diversified</code>. For more information on the provisioning strategies, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-fleet-allocation-strategy.html">Allocation strategies for Spot Instances</a> in the <i>Amazon EC2 User Guide for Linux Instances</i>.</p>
-   *          <note>
-   *             <p>When you launch a Spot Instance fleet with the old console, it automatically launches with the <code>capacity-optimized</code> strategy. You can't change the allocation strategy from the old console.</p>
-   *          </note>
+   * <p> Specifies the strategy to use in launching Spot Instance fleets. Currently, the only
+   *          option is capacity-optimized (the default), which launches instances from Spot Instance
+   *          pools with optimal capacity for the number of instances that are launching. </p>
    */
   AllocationStrategy?: SpotProvisioningAllocationStrategy | string;
 }
@@ -4725,6 +4724,115 @@ export interface ListStudioSessionMappingsOutput {
   Marker?: string;
 }
 
+/**
+ * @public
+ */
+export interface ListSupportedInstanceTypesInput {
+  /**
+   * <p>The Amazon EMR release label determines the <a href="https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-release-app-versions-6.x.html">versions of open-source
+   *             application packages</a> that Amazon EMR has installed on the cluster.
+   *          Release labels are in the format <code>emr-x.x.x</code>, where x.x.x is an Amazon EMR release number such as <code>emr-6.10.0</code>. For more information about Amazon EMR releases and their included application versions and features, see the
+   *                <i>
+   *                <a href="https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-release-components.html">Amazon EMR Release
+   *                Guide</a>
+   *             </i>.</p>
+   */
+  ReleaseLabel: string | undefined;
+
+  /**
+   * <p>The pagination token that marks the next set of results to retrieve.</p>
+   */
+  Marker?: string;
+}
+
+/**
+ * @public
+ * <p>An instance type that the specified Amazon EMR release supports.</p>
+ */
+export interface SupportedInstanceType {
+  /**
+   * <p>The <a href="http://aws.amazon.com/ec2/instance-types/">Amazon EC2 instance
+   *             type</a>, for example <code>m5.xlarge</code>, of the
+   *             <code>SupportedInstanceType</code>.</p>
+   */
+  Type?: string;
+
+  /**
+   * <p>The amount of memory that is available to Amazon EMR from the <code>SupportedInstanceType</code>. The kernel and hypervisor
+   *          software consume some memory, so this value might be lower than the overall memory for the
+   *          instance type.</p>
+   */
+  MemoryGB?: number;
+
+  /**
+   * <p>
+   *             <code>StorageGB</code> represents the storage capacity of the
+   *             <code>SupportedInstanceType</code>. This value is <code>0</code> for Amazon EBS-only instance types.</p>
+   */
+  StorageGB?: number;
+
+  /**
+   * <p>The number of vCPUs available for the <code>SupportedInstanceType</code>.</p>
+   */
+  VCPU?: number;
+
+  /**
+   * <p>Indicates whether the <code>SupportedInstanceType</code> only supports 64-bit
+   *          architecture.</p>
+   */
+  Is64BitsOnly?: boolean;
+
+  /**
+   * <p>The Amazon EC2 family and generation for the
+   *          <code>SupportedInstanceType</code>.</p>
+   */
+  InstanceFamilyId?: string;
+
+  /**
+   * <p>Indicates whether the <code>SupportedInstanceType</code> supports Amazon EBS
+   *          optimization.</p>
+   */
+  EbsOptimizedAvailable?: boolean;
+
+  /**
+   * <p>Indicates whether the <code>SupportedInstanceType</code> uses Amazon EBS
+   *          optimization by default.</p>
+   */
+  EbsOptimizedByDefault?: boolean;
+
+  /**
+   * <p>Number of disks for the <code>SupportedInstanceType</code>. This value is <code>0</code>
+   *          for Amazon EBS-only instance types.</p>
+   */
+  NumberOfDisks?: number;
+
+  /**
+   * <p>Indicates whether the <code>SupportedInstanceType</code> only supports Amazon EBS.</p>
+   */
+  EbsStorageOnly?: boolean;
+
+  /**
+   * <p>The CPU architecture, for example <code>X86_64</code> or <code>AARCH64</code>.</p>
+   */
+  Architecture?: string;
+}
+
+/**
+ * @public
+ */
+export interface ListSupportedInstanceTypesOutput {
+  /**
+   * <p>The list of instance types that the release specified in
+   *             <code>ListSupportedInstanceTypesInput$ReleaseLabel</code> supports, filtered by Amazon Web Services Region.</p>
+   */
+  SupportedInstanceTypes?: SupportedInstanceType[];
+
+  /**
+   * <p>The pagination token that marks the next set of results to retrieve.</p>
+   */
+  Marker?: string;
+}
+
 /**
  * @public
  */
diff --git a/clients/client-emr/src/pagination/ListSupportedInstanceTypesPaginator.ts b/clients/client-emr/src/pagination/ListSupportedInstanceTypesPaginator.ts
new file mode 100644
index 000000000000..1f8f716e9367
--- /dev/null
+++ b/clients/client-emr/src/pagination/ListSupportedInstanceTypesPaginator.ts
@@ -0,0 +1,49 @@
+// smithy-typescript generated code
+import { Paginator } from "@aws-sdk/types";
+
+import {
+  ListSupportedInstanceTypesCommand,
+  ListSupportedInstanceTypesCommandInput,
+  ListSupportedInstanceTypesCommandOutput,
+} from "../commands/ListSupportedInstanceTypesCommand";
+import { EMRClient } from "../EMRClient";
+import { EMRPaginationConfiguration } from "./Interfaces";
+
+/**
+ * @internal
+ */
+const makePagedClientRequest = async (
+  client: EMRClient,
+  input: ListSupportedInstanceTypesCommandInput,
+  ...args: any
+): Promise<ListSupportedInstanceTypesCommandOutput> => {
+  // @ts-ignore
+  return await client.send(new ListSupportedInstanceTypesCommand(input), ...args);
+};
+/**
+ * @public
+ */
+export async function* paginateListSupportedInstanceTypes(
+  config: EMRPaginationConfiguration,
+  input: ListSupportedInstanceTypesCommandInput,
+  ...additionalArguments: any
+): Paginator<ListSupportedInstanceTypesCommandOutput> {
+  // ToDo: replace with actual type instead of typeof input.Marker
+  let token: typeof input.Marker | undefined = config.startingToken || undefined;
+  let hasNext = true;
+  let page: ListSupportedInstanceTypesCommandOutput;
+  while (hasNext) {
+    input.Marker = token;
+    if (config.client instanceof EMRClient) {
+      page = await makePagedClientRequest(config.client, input, ...additionalArguments);
+    } else {
+      throw new Error("Invalid client, expected EMR | EMRClient");
+    }
+    yield page;
+    const prevToken = token;
+    token = page.Marker;
+    hasNext = !!(token && (!config.stopOnSameToken || token !== prevToken));
+  }
+  // @ts-ignore
+  return undefined;
+}
diff --git a/clients/client-emr/src/pagination/index.ts b/clients/client-emr/src/pagination/index.ts
index aebd81baf72f..7eee46ef9454 100644
--- a/clients/client-emr/src/pagination/index.ts
+++ b/clients/client-emr/src/pagination/index.ts
@@ -11,3 +11,4 @@ export * from "./ListSecurityConfigurationsPaginator";
 export * from "./ListStepsPaginator";
 export * from "./ListStudioSessionMappingsPaginator";
 export * from "./ListStudiosPaginator";
+export * from "./ListSupportedInstanceTypesPaginator";
diff --git a/clients/client-emr/src/protocols/Aws_json1_1.ts b/clients/client-emr/src/protocols/Aws_json1_1.ts
index 814793b1a577..f93c92f7b238 100644
--- a/clients/client-emr/src/protocols/Aws_json1_1.ts
+++ b/clients/client-emr/src/protocols/Aws_json1_1.ts
@@ -11,6 +11,7 @@ import {
   expectString as __expectString,
   expectUnion as __expectUnion,
   limitedParseDouble as __limitedParseDouble,
+  limitedParseFloat32 as __limitedParseFloat32,
   parseEpochTimestamp as __parseEpochTimestamp,
   serializeFloat as __serializeFloat,
   take,
@@ -102,6 +103,10 @@ import {
   ListStudioSessionMappingsCommandInput,
   ListStudioSessionMappingsCommandOutput,
 } from "../commands/ListStudioSessionMappingsCommand";
+import {
+  ListSupportedInstanceTypesCommandInput,
+  ListSupportedInstanceTypesCommandOutput,
+} from "../commands/ListSupportedInstanceTypesCommand";
 import { ModifyClusterCommandInput, ModifyClusterCommandOutput } from "../commands/ModifyClusterCommand";
 import {
   ModifyInstanceFleetCommandInput,
@@ -268,6 +273,8 @@ import {
   ListStudioSessionMappingsOutput,
   ListStudiosInput,
   ListStudiosOutput,
+  ListSupportedInstanceTypesInput,
+  ListSupportedInstanceTypesOutput,
   ManagedScalingPolicy,
   MetricDimension,
   ModifyClusterInput,
@@ -320,6 +327,7 @@ import {
   StopNotebookExecutionInput,
   Studio,
   StudioSummary,
+  SupportedInstanceType,
   SupportedProductConfig,
   Tag,
   TerminateJobFlowsInput,
@@ -770,6 +778,19 @@ export const se_ListStudioSessionMappingsCommand = async (
   return buildHttpRpcRequest(context, headers, "/", undefined, body);
 };
 
+/**
+ * serializeAws_json1_1ListSupportedInstanceTypesCommand
+ */
+export const se_ListSupportedInstanceTypesCommand = async (
+  input: ListSupportedInstanceTypesCommandInput,
+  context: __SerdeContext
+): Promise<__HttpRequest> => {
+  const headers: __HeaderBag = sharedHeaders("ListSupportedInstanceTypes");
+  let body: any;
+  body = JSON.stringify(_json(input));
+  return buildHttpRpcRequest(context, headers, "/", undefined, body);
+};
+
 /**
  * serializeAws_json1_1ModifyClusterCommand
  */
@@ -2647,6 +2668,55 @@ const de_ListStudioSessionMappingsCommandError = async (
   }
 };
 
+/**
+ * deserializeAws_json1_1ListSupportedInstanceTypesCommand
+ */
+export const de_ListSupportedInstanceTypesCommand = async (
+  output: __HttpResponse,
+  context: __SerdeContext
+): Promise<ListSupportedInstanceTypesCommandOutput> => {
+  if (output.statusCode >= 300) {
+    return de_ListSupportedInstanceTypesCommandError(output, context);
+  }
+  const data: any = await parseBody(output.body, context);
+  let contents: any = {};
+  contents = de_ListSupportedInstanceTypesOutput(data, context);
+  const response: ListSupportedInstanceTypesCommandOutput = {
+    $metadata: deserializeMetadata(output),
+    ...contents,
+  };
+  return response;
+};
+
+/**
+ * deserializeAws_json1_1ListSupportedInstanceTypesCommandError
+ */
+const de_ListSupportedInstanceTypesCommandError = async (
+  output: __HttpResponse,
+  context: __SerdeContext
+): Promise<ListSupportedInstanceTypesCommandOutput> => {
+  const parsedOutput: any = {
+    ...output,
+    body: await parseErrorBody(output.body, context),
+  };
+  const errorCode = loadRestJsonErrorCode(output, parsedOutput.body);
+  switch (errorCode) {
+    case "InternalServerException":
+    case "com.amazonaws.emr#InternalServerException":
+      throw await de_InternalServerExceptionRes(parsedOutput, context);
+    case "InvalidRequestException":
+    case "com.amazonaws.emr#InvalidRequestException":
+      throw await de_InvalidRequestExceptionRes(parsedOutput, context);
+    default:
+      const parsedBody = parsedOutput.body;
+      return throwDefaultError({
+        output,
+        parsedBody,
+        errorCode,
+      });
+  }
+};
+
 /**
  * deserializeAws_json1_1ModifyClusterCommand
  */
@@ -3889,6 +3959,8 @@ const se_ListNotebookExecutionsInput = (input: ListNotebookExecutionsInput, cont
 
 // se_ListStudiosInput omitted.
 
+// se_ListSupportedInstanceTypesInput omitted.
+
 // se_ManagedScalingPolicy omitted.
 
 // se_MetricDimension omitted.
@@ -4868,6 +4940,19 @@ const de_ListStudiosOutput = (output: any, context: __SerdeContext): ListStudios
   }) as any;
 };
 
+/**
+ * deserializeAws_json1_1ListSupportedInstanceTypesOutput
+ */
+const de_ListSupportedInstanceTypesOutput = (
+  output: any,
+  context: __SerdeContext
+): ListSupportedInstanceTypesOutput => {
+  return take(output, {
+    Marker: __expectString,
+    SupportedInstanceTypes: (_: any) => de_SupportedInstanceTypesList(_, context),
+  }) as any;
+};
+
 // de_ManagedScalingPolicy omitted.
 
 // de_MetricDimension omitted.
@@ -5258,6 +5343,37 @@ const de_StudioSummaryList = (output: any, context: __SerdeContext): StudioSumma
 
 // de_SubnetIdList omitted.
 
+/**
+ * deserializeAws_json1_1SupportedInstanceType
+ */
+const de_SupportedInstanceType = (output: any, context: __SerdeContext): SupportedInstanceType => {
+  return take(output, {
+    Architecture: __expectString,
+    EbsOptimizedAvailable: __expectBoolean,
+    EbsOptimizedByDefault: __expectBoolean,
+    EbsStorageOnly: __expectBoolean,
+    InstanceFamilyId: __expectString,
+    Is64BitsOnly: __expectBoolean,
+    MemoryGB: __limitedParseFloat32,
+    NumberOfDisks: __expectInt32,
+    StorageGB: __expectInt32,
+    Type: __expectString,
+    VCPU: __expectInt32,
+  }) as any;
+};
+
+/**
+ * deserializeAws_json1_1SupportedInstanceTypesList
+ */
+const de_SupportedInstanceTypesList = (output: any, context: __SerdeContext): SupportedInstanceType[] => {
+  const retVal = (output || [])
+    .filter((e: any) => e != null)
+    .map((entry: any) => {
+      return de_SupportedInstanceType(entry, context);
+    });
+  return retVal;
+};
+
 // de_SupportedProductsList omitted.
 
 // de_Tag omitted.
diff --git a/codegen/sdk-codegen/aws-models/emr.json b/codegen/sdk-codegen/aws-models/emr.json
index 8058498e16bb..c5370ce7ad72 100644
--- a/codegen/sdk-codegen/aws-models/emr.json
+++ b/codegen/sdk-codegen/aws-models/emr.json
@@ -2677,6 +2677,9 @@
         {
           "target": "com.amazonaws.emr#ListStudioSessionMappings"
         },
+        {
+          "target": "com.amazonaws.emr#ListSupportedInstanceTypes"
+        },
         {
           "target": "com.amazonaws.emr#ModifyCluster"
         },
@@ -3949,6 +3952,12 @@
         "smithy.api#documentation": "<p>The details of the step failure. The service attempts to detect the root cause for many\n         common failures.</p>"
       }
     },
+    "com.amazonaws.emr#Float": {
+      "type": "float",
+      "traits": {
+        "smithy.api#default": 0
+      }
+    },
     "com.amazonaws.emr#GetAutoTerminationPolicy": {
       "type": "operation",
       "input": {
@@ -7037,6 +7046,71 @@
         "smithy.api#output": {}
       }
     },
+    "com.amazonaws.emr#ListSupportedInstanceTypes": {
+      "type": "operation",
+      "input": {
+        "target": "com.amazonaws.emr#ListSupportedInstanceTypesInput"
+      },
+      "output": {
+        "target": "com.amazonaws.emr#ListSupportedInstanceTypesOutput"
+      },
+      "errors": [
+        {
+          "target": "com.amazonaws.emr#InternalServerException"
+        },
+        {
+          "target": "com.amazonaws.emr#InvalidRequestException"
+        }
+      ],
+      "traits": {
+        "smithy.api#documentation": "<p>A list of the instance types that Amazon EMR supports. You can filter the\n         list by Amazon Web Services Region and Amazon EMR release. </p>",
+        "smithy.api#paginated": {
+          "inputToken": "Marker",
+          "outputToken": "Marker"
+        }
+      }
+    },
+    "com.amazonaws.emr#ListSupportedInstanceTypesInput": {
+      "type": "structure",
+      "members": {
+        "ReleaseLabel": {
+          "target": "com.amazonaws.emr#String",
+          "traits": {
+            "smithy.api#documentation": "<p>The Amazon EMR release label determines the <a href=\"https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-release-app-versions-6.x.html\">versions of open-source\n            application packages</a> that Amazon EMR has installed on the cluster.\n         Release labels are in the format <code>emr-x.x.x</code>, where x.x.x is an Amazon EMR release number such as <code>emr-6.10.0</code>. For more information about Amazon EMR releases and their included application versions and features, see the\n               <i>\n               <a href=\"https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-release-components.html\">Amazon EMR Release\n               Guide</a>\n            </i>.</p>",
+            "smithy.api#required": {}
+          }
+        },
+        "Marker": {
+          "target": "com.amazonaws.emr#String",
+          "traits": {
+            "smithy.api#documentation": "<p>The pagination token that marks the next set of results to retrieve.</p>"
+          }
+        }
+      },
+      "traits": {
+        "smithy.api#input": {}
+      }
+    },
+    "com.amazonaws.emr#ListSupportedInstanceTypesOutput": {
+      "type": "structure",
+      "members": {
+        "SupportedInstanceTypes": {
+          "target": "com.amazonaws.emr#SupportedInstanceTypesList",
+          "traits": {
+            "smithy.api#documentation": "<p>The list of instance types that the release specified in\n            <code>ListSupportedInstanceTypesInput$ReleaseLabel</code> supports, filtered by Amazon Web Services Region.</p>"
+          }
+        },
+        "Marker": {
+          "target": "com.amazonaws.emr#String",
+          "traits": {
+            "smithy.api#documentation": "<p>The pagination token that marks the next set of results to retrieve.</p>"
+          }
+        }
+      },
+      "traits": {
+        "smithy.api#output": {}
+      }
+    },
     "com.amazonaws.emr#Long": {
       "type": "long",
       "traits": {
@@ -8944,7 +9018,7 @@
         "AllocationStrategy": {
           "target": "com.amazonaws.emr#SpotProvisioningAllocationStrategy",
           "traits": {
-            "smithy.api#documentation": "<p>Specifies one of the following strategies to launch Spot Instance fleets: <code>price-capacity-optimized</code>, <code>capacity-optimized</code>, <code>lowest-price</code>, or  <code>diversified</code>. For more information on the provisioning strategies, see <a href=\"https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-fleet-allocation-strategy.html\">Allocation strategies for Spot Instances</a> in the <i>Amazon EC2 User Guide for Linux Instances</i>.</p>\n         <note>\n            <p>When you launch a Spot Instance fleet with the old console, it automatically launches with the <code>capacity-optimized</code> strategy. You can't change the allocation strategy from the old console.</p>\n         </note>"
+            "smithy.api#documentation": "<p> Specifies the strategy to use in launching Spot Instance fleets. Currently, the only\n         option is capacity-optimized (the default), which launches instances from Spot Instance\n         pools with optimal capacity for the number of instances that are launching. </p>"
           }
         }
       },
@@ -9765,6 +9839,91 @@
         "target": "com.amazonaws.emr#String"
       }
     },
+    "com.amazonaws.emr#SupportedInstanceType": {
+      "type": "structure",
+      "members": {
+        "Type": {
+          "target": "com.amazonaws.emr#String",
+          "traits": {
+            "smithy.api#documentation": "<p>The <a href=\"http://aws.amazon.com/ec2/instance-types/\">Amazon EC2 instance\n            type</a>, for example <code>m5.xlarge</code>, of the\n            <code>SupportedInstanceType</code>.</p>"
+          }
+        },
+        "MemoryGB": {
+          "target": "com.amazonaws.emr#Float",
+          "traits": {
+            "smithy.api#default": 0,
+            "smithy.api#documentation": "<p>The amount of memory that is available to Amazon EMR from the <code>SupportedInstanceType</code>. The kernel and hypervisor\n         software consume some memory, so this value might be lower than the overall memory for the\n         instance type.</p>"
+          }
+        },
+        "StorageGB": {
+          "target": "com.amazonaws.emr#Integer",
+          "traits": {
+            "smithy.api#documentation": "<p>\n            <code>StorageGB</code> represents the storage capacity of the\n            <code>SupportedInstanceType</code>. This value is <code>0</code> for Amazon EBS-only instance types.</p>"
+          }
+        },
+        "VCPU": {
+          "target": "com.amazonaws.emr#Integer",
+          "traits": {
+            "smithy.api#documentation": "<p>The number of vCPUs available for the <code>SupportedInstanceType</code>.</p>"
+          }
+        },
+        "Is64BitsOnly": {
+          "target": "com.amazonaws.emr#Boolean",
+          "traits": {
+            "smithy.api#default": false,
+            "smithy.api#documentation": "<p>Indicates whether the <code>SupportedInstanceType</code> only supports 64-bit\n         architecture.</p>"
+          }
+        },
+        "InstanceFamilyId": {
+          "target": "com.amazonaws.emr#String",
+          "traits": {
+            "smithy.api#documentation": "<p>The Amazon EC2 family and generation for the\n         <code>SupportedInstanceType</code>.</p>"
+          }
+        },
+        "EbsOptimizedAvailable": {
+          "target": "com.amazonaws.emr#Boolean",
+          "traits": {
+            "smithy.api#default": false,
+            "smithy.api#documentation": "<p>Indicates whether the <code>SupportedInstanceType</code> supports Amazon EBS\n         optimization.</p>"
+          }
+        },
+        "EbsOptimizedByDefault": {
+          "target": "com.amazonaws.emr#Boolean",
+          "traits": {
+            "smithy.api#default": false,
+            "smithy.api#documentation": "<p>Indicates whether the <code>SupportedInstanceType</code> uses Amazon EBS\n         optimization by default.</p>"
+          }
+        },
+        "NumberOfDisks": {
+          "target": "com.amazonaws.emr#Integer",
+          "traits": {
+            "smithy.api#documentation": "<p>Number of disks for the <code>SupportedInstanceType</code>. This value is <code>0</code>\n         for Amazon EBS-only instance types.</p>"
+          }
+        },
+        "EbsStorageOnly": {
+          "target": "com.amazonaws.emr#Boolean",
+          "traits": {
+            "smithy.api#default": false,
+            "smithy.api#documentation": "<p>Indicates whether the <code>SupportedInstanceType</code> only supports Amazon EBS.</p>"
+          }
+        },
+        "Architecture": {
+          "target": "com.amazonaws.emr#String",
+          "traits": {
+            "smithy.api#documentation": "<p>The CPU architecture, for example <code>X86_64</code> or <code>AARCH64</code>.</p>"
+          }
+        }
+      },
+      "traits": {
+        "smithy.api#documentation": "<p>An instance type that the specified Amazon EMR release supports.</p>"
+      }
+    },
+    "com.amazonaws.emr#SupportedInstanceTypesList": {
+      "type": "list",
+      "member": {
+        "target": "com.amazonaws.emr#SupportedInstanceType"
+      }
+    },
     "com.amazonaws.emr#SupportedProductConfig": {
       "type": "structure",
       "members": {