diff --git a/parametermanager/regional_samples/createRegionalParam.js b/parametermanager/regional_samples/createRegionalParam.js
new file mode 100644
index 0000000000..0e73e9e704
--- /dev/null
+++ b/parametermanager/regional_samples/createRegionalParam.js
@@ -0,0 +1,73 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * Creates a new version of an existing parameter in the specified region
+ * of the specified project using the Google Cloud Parameter Manager SDK.
+ * The payload is specified as a JSON string and includes a reference to a secret.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is to be created.
+ * @param {string} locationId - The ID of the region where parameter is to be created.
+ * @param {string} parameterId - The ID of the parameter to create. This ID must be unique within the project location.
+ */
+async function main(projectId, locationId, parameterId) {
+  // [START parametermanager_create_regional_param]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const locationId = 'YOUR_LOCATION_ID';
+  // const parameterId = 'YOUR_PARAMETER_ID';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function createRegionalParam() {
+    const parent = client.locationPath(projectId, locationId);
+    const request = {
+      parent: parent,
+      parameterId: parameterId,
+    };
+
+    const [parameter] = await client.createParameter(request);
+    console.log(`Created regional parameter: ${parameter.name}`);
+    return parameter;
+  }
+
+  return await createRegionalParam();
+  // [END parametermanager_create_regional_param]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/regional_samples/createRegionalParamVersion.js b/parametermanager/regional_samples/createRegionalParamVersion.js
new file mode 100644
index 0000000000..97fb0548dc
--- /dev/null
+++ b/parametermanager/regional_samples/createRegionalParamVersion.js
@@ -0,0 +1,95 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * Creates a new version of an existing parameter in the specified region
+ * of the specified project using the Google Cloud Parameter Manager SDK.
+ * The payload is specified as an unformatted string.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is located.
+ * @param {string} locationId - The ID of the region where parameter is located.
+ * @param {string} parameterId - The ID of the parameter for which the version is to be created.
+ * @param {string} parameterVersionId - The ID of the parameter version to be created.
+ * @param {string} payload - The unformatted string payload to be stored in the parameter version.
+ */
+async function main(
+  projectId,
+  locationId,
+  parameterId,
+  parameterVersionId,
+  payload
+) {
+  // [START parametermanager_create_regional_param_version]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const locationId = 'us-central1';
+  // const parameterId = 'YOUR_PARAMETER_ID';
+  // const parameterVersionId = 'YOUR_PARAMETER_VERSION_ID';
+  // const payload = 'This is unstructured data';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function createRegionalParamVersion() {
+    // Construct the parent resource name
+    const parent = client.parameterPath(projectId, locationId, parameterId);
+
+    // Construct the parameter version
+    const parameterVersion = {
+      payload: {
+        data: Buffer.from(payload, 'utf8'),
+      },
+    };
+
+    // Construct the request
+    const request = {
+      parent: parent,
+      parameterVersionId: parameterVersionId,
+      parameterVersion: parameterVersion,
+    };
+
+    // Create the parameter version
+    const [paramVersion] = await client.createParameterVersion(request);
+    console.log(`Created regional parameter version: ${paramVersion.name}`);
+    return paramVersion;
+  }
+
+  return await createRegionalParamVersion();
+  // [END parametermanager_create_regional_param_version]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/regional_samples/createRegionalParamVersionWithSecret.js b/parametermanager/regional_samples/createRegionalParamVersionWithSecret.js
new file mode 100644
index 0000000000..dc1da5c2d6
--- /dev/null
+++ b/parametermanager/regional_samples/createRegionalParamVersionWithSecret.js
@@ -0,0 +1,103 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * Creates a new version of an existing parameter in the specified region
+ * of the specified project using the Google Cloud Parameter Manager SDK.
+ * The payload is specified as a JSON string and includes a reference to a secret.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is located.
+ * @param {string} locationId - The ID of the region where parameter is located.
+ * @param {string} parameterId - The ID of the parameter for which the version is to be created.
+ * @param {string} parameterVersionId - The ID of the parameter version to be created.
+ * @param {string} secretId - The ID of the secret to be referenced.
+ */
+async function main(
+  projectId,
+  locationId,
+  parameterId,
+  parameterVersionId,
+  secretId
+) {
+  // [START parametermanager_create_regional_param_version_with_secret]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const locationId = 'us-central1';
+  // const parameterId = 'YOUR_PARAMETER_ID';
+  // const parameterVersionId = 'YOUR_PARAMETER_VERSION_ID';
+  // const secretId = 'YOUR_SECRET_ID'; // For example projects/my-project/secrets/application-secret/version/latest
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function createRegionalParamVersionWithSecret() {
+    // Construct the parent resource name
+    const parent = client.parameterPath(projectId, locationId, parameterId);
+
+    // Construct the payload JSON data with secret references
+    const payloadData = {
+      db_user: 'test_user',
+      db_password: `__REF__("//secretmanager.googleapis.com/${secretId}")`,
+    };
+
+    // Construct the parameter version
+    const parameterVersion = {
+      payload: {
+        data: Buffer.from(JSON.stringify(payloadData), 'utf8'),
+      },
+    };
+
+    // Construct the request
+    const request = {
+      parent: parent,
+      parameterVersionId: parameterVersionId,
+      parameterVersion: parameterVersion,
+    };
+
+    // Create the regional parameter version
+    const [paramVersion] = await client.createParameterVersion(request);
+    console.log(
+      `Created regional parameter version with secret: ${paramVersion.name}`
+    );
+    return paramVersion;
+  }
+
+  return await createRegionalParamVersionWithSecret();
+  // [END parametermanager_create_regional_param_version_with_secret]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/regional_samples/createStructuredRegionalParam.js b/parametermanager/regional_samples/createStructuredRegionalParam.js
new file mode 100644
index 0000000000..6158a0a2d5
--- /dev/null
+++ b/parametermanager/regional_samples/createStructuredRegionalParam.js
@@ -0,0 +1,80 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * Creates a parameter in the specified region of the specified project using the Google Cloud Parameter Manager SDK.
+ * The parameter is created with the specified format type.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is to be created.
+ * @param {string} locationId - The ID of the region where parameter is to be created.
+ * @param {string} parameterId - The ID of the parameter to create.
+ * @param {string} formatType - The format type of the parameter (UNFORMATTED, YAML, JSON).
+ */
+async function main(projectId, locationId, parameterId, formatType) {
+  // [START parametermanager_create_structured_regional_param]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const {protos} = require('@google-cloud/parametermanager');
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const locationId = 'YOUR_LOCATION_ID';
+  // const parameterId = 'YOUR_PARAMETER_ID';
+  // const formatType = protos.google.cloud.parametermanager.v1.ParameterFormat.JSON;
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function createStructuredRegionalParam() {
+    const parent = client.locationPath(projectId, locationId);
+    const request = {
+      parent: parent,
+      parameterId: parameterId,
+      parameter: {
+        format: formatType,
+      },
+    };
+
+    const [parameter] = await client.createParameter(request);
+    console.log(
+      `Created regional parameter ${parameter.name} with format ${parameter.format}`
+    );
+    return parameter;
+  }
+
+  return await createStructuredRegionalParam();
+  // [END parametermanager_create_structured_regional_param]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/regional_samples/createStructuredRegionalParamVersion.js b/parametermanager/regional_samples/createStructuredRegionalParamVersion.js
new file mode 100644
index 0000000000..0a2bef49f2
--- /dev/null
+++ b/parametermanager/regional_samples/createStructuredRegionalParamVersion.js
@@ -0,0 +1,95 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * Creates a new version of an existing parameter in the specified region of the
+ * specified project using the Google Cloud Parameter Manager SDK.
+ * The payload is specified as a JSON format.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is located.
+ * @param {string} locationId - The ID of the region where parameter is located.
+ * @param {string} parameterId - The ID of the parameter for which the version is to be created.
+ * @param {string} parameterVersionId - The ID of the parameter version to be created.
+ * @param {Object} payload - The JSON data payload to be stored in the parameter version.
+ */
+async function main(
+  projectId,
+  locationId,
+  parameterId,
+  parameterVersionId,
+  payload
+) {
+  // [START parametermanager_create_structured_regional_param_version]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const locationId = 'us-central1';
+  // const parameterId = 'YOUR_PARAMETER_ID';
+  // const parameterVersionId = 'YOUR_PARAMETER_VERSION_ID';
+  // const payload = {username: "test-user", host: "localhost"};
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function createStructuredRegionalParamVersion() {
+    // Construct the parent resource name
+    const parent = client.parameterPath(projectId, locationId, parameterId);
+
+    // Construct the parameter version
+    const parameterVersion = {
+      payload: {
+        data: Buffer.from(JSON.stringify(payload), 'utf8'),
+      },
+    };
+
+    // Construct the request
+    const request = {
+      parent: parent,
+      parameterVersionId: parameterVersionId,
+      parameterVersion: parameterVersion,
+    };
+
+    // Create the regional parameter version
+    const [paramVersion] = await client.createParameterVersion(request);
+    console.log(`Created regional parameter version: ${paramVersion.name}`);
+    return paramVersion;
+  }
+
+  return await createStructuredRegionalParamVersion();
+  // [END parametermanager_create_structured_regional_param_version]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/regional_samples/getRegionalParam.js b/parametermanager/regional_samples/getRegionalParam.js
new file mode 100644
index 0000000000..cee52c5421
--- /dev/null
+++ b/parametermanager/regional_samples/getRegionalParam.js
@@ -0,0 +1,77 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * Retrieves a parameter from the specified region of the specified
+ * project using the Google Cloud Parameter Manager SDK.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is located.
+ * @param {string} locationId - The ID of the region where parameter is located.
+ * @param {string} parameterId - The ID of the parameter to retrieve.
+ */
+async function main(projectId, locationId, parameterId) {
+  // [START parametermanager_get_regional_param]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const locationId = 'us-central1';
+  // const parameterId = 'my-parameter';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function getRegionalParam() {
+    // Construct the fully qualified parameter name
+    const name = client.parameterPath(projectId, locationId, parameterId);
+
+    // Get the parameter
+    const [parameter] = await client.getParameter({
+      name: name,
+    });
+
+    // Find more details for the Parameter object here:
+    // https://cloud.google.com/secret-manager/parameter-manager/docs/reference/rest/v1/projects.locations.parameters#Parameter
+    console.log(
+      `Found regional parameter ${parameter.name} with format ${parameter.format}`
+    );
+    return parameter;
+  }
+
+  return await getRegionalParam();
+  // [END parametermanager_get_regional_param]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/regional_samples/getRegionalParamVersion.js b/parametermanager/regional_samples/getRegionalParamVersion.js
new file mode 100644
index 0000000000..9ecb24e19e
--- /dev/null
+++ b/parametermanager/regional_samples/getRegionalParamVersion.js
@@ -0,0 +1,89 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * Retrieves the details of a specific version of an existing parameter in the specified region of the specified
+ * project using the Google Cloud Parameter Manager SDK.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is located.
+ * @param {string} locationId - The ID of the region where parameter is located.
+ * @param {string} parameterId - The ID of the parameter for which version details are to be retrieved.
+ * @param {string} versionId - The version ID of the parameter to retrieve.
+ */
+async function main(projectId, locationId, parameterId, versionId) {
+  // [START parametermanager_get_regional_param_version]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const locationId = 'us-central1';
+  // const parameterId = 'my-parameter';
+  // const versionId = 'v1';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function getRegionalParamVersion() {
+    // Construct the fully qualified parameter version name
+    const name = client.parameterVersionPath(
+      projectId,
+      locationId,
+      parameterId,
+      versionId
+    );
+
+    // Get the parameter version
+    const [parameterVersion] = await client.getParameterVersion({
+      name: name,
+    });
+
+    // Find more details for the Parameter Version object here:
+    // https://cloud.google.com/secret-manager/parameter-manager/docs/reference/rest/v1/projects.locations.parameters.versions#ParameterVersion
+    console.log(
+      `Found regional parameter version ${parameterVersion.name} with state ${parameterVersion.disabled ? 'disabled' : 'enabled'}`
+    );
+    if (!parameterVersion.disabled) {
+      console.log(
+        `Payload: ${parameterVersion.payload.data.toString('utf-8')}`
+      );
+    }
+    return parameterVersion;
+  }
+
+  return await getRegionalParamVersion();
+  // [END parametermanager_get_regional_param_version]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/regional_samples/listRegionalParamVersions.js b/parametermanager/regional_samples/listRegionalParamVersions.js
new file mode 100644
index 0000000000..67dc4eb6e1
--- /dev/null
+++ b/parametermanager/regional_samples/listRegionalParamVersions.js
@@ -0,0 +1,79 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * List all versions of an existing parameter in the specific region for the specified
+ * project using the Google Cloud Parameter Manager SDK.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is located.
+ * @param {string} locationId - The ID of the region where the parameter is located.
+ * @param {string} parameterId - The parameter ID for which versions are to be listed.
+ */
+async function main(projectId, locationId, parameterId) {
+  // [START parametermanager_list_regional_param_versions]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const locationId = 'us-central1';
+  // const parameterId = 'my-parameter';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function listRegionalParamVersions() {
+    // Construct the parent string for listing parameter versions in a specific region
+    const parent = client.parameterPath(projectId, locationId, parameterId);
+
+    const request = {
+      parent: parent,
+    };
+
+    // Use listParameterVersionsAsync to handle pagination automatically
+    const paramVersions = await client.listParameterVersionsAsync(request);
+
+    for await (const version of paramVersions) {
+      console.log(
+        `Found regional parameter version ${version.name} with state ${version.disabled ? 'disabled' : 'enabled'} `
+      );
+    }
+    return paramVersions;
+  }
+
+  return await listRegionalParamVersions();
+  // [END parametermanager_list_regional_param_versions]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/regional_samples/listRegionalParams.js b/parametermanager/regional_samples/listRegionalParams.js
new file mode 100644
index 0000000000..cf78ac2e10
--- /dev/null
+++ b/parametermanager/regional_samples/listRegionalParams.js
@@ -0,0 +1,77 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * Lists all parameters in the specified region for the specified
+ * project using the Google Cloud Parameter Manager SDK.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameters are located.
+ * @param {string} locationId - The ID of the region where parameters are located.
+ */
+async function main(projectId, locationId) {
+  // [START parametermanager_list_regional_params]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const locationId = 'us-central1';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function listRegionalParams() {
+    // Construct the parent string for listing parameters in a specific region
+    const parent = client.locationPath(projectId, locationId);
+
+    const request = {
+      parent: parent,
+    };
+
+    // Use listParametersAsync to handle pagination automatically
+    const parameters = await client.listParametersAsync(request);
+
+    for await (const parameter of parameters) {
+      console.log(
+        `Found regional parameter ${parameter.name} with format ${parameter.format}`
+      );
+    }
+    return parameters;
+  }
+
+  return await listRegionalParams();
+  // [END parametermanager_list_regional_params]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/regional_samples/renderRegionalParamVersion.js b/parametermanager/regional_samples/renderRegionalParamVersion.js
new file mode 100644
index 0000000000..8074b1ed61
--- /dev/null
+++ b/parametermanager/regional_samples/renderRegionalParamVersion.js
@@ -0,0 +1,94 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+/**
+ * Retrieves and renders the details of a specific version of an
+ * existing parameter in the specified region of the specified project
+ * using the Google Cloud Parameter Manager SDK.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is located.
+ * @param {string} locationId - The ID of the region where parameter is located.
+ * @param {string} parameterId - The ID of the parameter for which version details are to be rendered.
+ * @param {string} parameterVersionId - The ID of the parameter version to be rendered.
+ */
+async function main(projectId, locationId, parameterId, parameterVersionId) {
+  // [START parametermanager_render_regional_param_version]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const locationId = 'us-central1';
+  // const parameterId = 'YOUR_PARAMETER_ID';
+  // const parameterVersionId = 'YOUR_PARAMETER_VERSION_ID';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Adding the endpoint to call the regional parameter manager server
+  const options = {
+    apiEndpoint: `parametermanager.${locationId}.rep.googleapis.com`,
+  };
+
+  // Instantiates a client with regional endpoint
+  const client = new ParameterManagerClient(options);
+
+  async function renderRegionalParamVersion() {
+    // Construct the parameter version name
+    const name = client.parameterVersionPath(
+      projectId,
+      locationId,
+      parameterId,
+      parameterVersionId
+    );
+
+    // Construct the request
+    const request = {
+      name: name,
+    };
+
+    // Render the parameter version
+    const [paramVersions] = await client.renderParameterVersion(request);
+
+    console.log(
+      `Rendered regional parameter version: ${paramVersions.parameterVersion}`
+    );
+
+    // If the parameter contains secret references, they will be resolved
+    // and the actual secret values will be included in the rendered output.
+    // Be cautious with logging or displaying this information.
+    console.log(
+      'Rendered payload: ',
+      paramVersions.renderedPayload.toString('utf-8')
+    );
+    return paramVersions;
+  }
+
+  return await renderRegionalParamVersion();
+  // [END parametermanager_render_regional_param_version]
+}
+module.exports.main = main;
+
+/* c8 ignore next 10 */
+if (require.main === module) {
+  main(...process.argv.slice(2)).catch(err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+  process.on('unhandledRejection', err => {
+    console.error(err.message);
+    process.exitCode = 1;
+  });
+}
diff --git a/parametermanager/test/parametermanager.test.js b/parametermanager/test/parametermanager.test.js
index e19bb2d87a..c56b399d39 100644
--- a/parametermanager/test/parametermanager.test.js
+++ b/parametermanager/test/parametermanager.test.js
@@ -36,6 +36,8 @@ const regionalClient = new ParameterManagerClient(options);
 const secretOptions = {};
 secretOptions.apiEndpoint = `secretmanager.${locationId}.rep.googleapis.com`;
 
+const regionalSecretClient = new SecretManagerServiceClient(secretOptions);
+
 const secretId = `test-secret-${uuidv4()}`;
 const parameterId = `test-parameter-${uuidv4()}`;
 const regionalParameterId = `test-regional-${uuidv4()}`;
@@ -56,6 +58,8 @@ let parameterToDelete;
 let regionalParameterToDelete;
 let parameterVersion;
 let regionalParameterVersion;
+let regionalSecret;
+let regionalSecretVersion;
 
 let keyRing;
 let kmsKey;
@@ -163,6 +167,20 @@ describe('Parameter Manager samples', () => {
     });
     regionalParameterVersionsToDelete.push(regionalParameterVersion.name);
 
+    // Create a regional secret
+    [regionalSecret] = await regionalSecretClient.createSecret({
+      parent: `projects/${projectId}/locations/${locationId}`,
+      secretId: secretId,
+    });
+
+    // Create a regional secret version
+    [regionalSecretVersion] = await regionalSecretClient.addSecretVersion({
+      parent: regionalSecret.name,
+      payload: {
+        data: Buffer.from('my super secret data', 'utf-8'),
+      },
+    });
+
     try {
       await kmsClient.getKeyRing({name: keyRing});
     } catch (error) {
@@ -329,6 +347,16 @@ describe('Parameter Manager samples', () => {
       })
     );
 
+    try {
+      await regionalSecretClient.deleteSecret({
+        name: regionalSecret.name,
+      });
+    } catch (err) {
+      if (!err.message.includes('NOT_FOUND')) {
+        throw err;
+      }
+    }
+
     try {
       await kmsClient.destroyCryptoKeyVersion({
         name: `${kmsKey}/cryptoKeyVersions/1`,
@@ -730,4 +758,161 @@ describe('Parameter Manager samples', () => {
       `projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-3`
     );
   });
+
+  it('should create regional parameter version with secret references', async () => {
+    const sample = require('../regional_samples/createRegionalParamVersionWithSecret');
+    const parameterVersion = await sample.main(
+      projectId,
+      locationId,
+      regionalParameterId,
+      parameterVersionId + '-1',
+      regionalSecretVersion.name
+    );
+    regionalParameterVersionsToDelete.push(parameterVersion.name);
+    assert.exists(parameterVersion);
+    assert.equal(
+      parameterVersion.name,
+      `projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}/versions/${parameterVersionId}-1`
+    );
+  });
+
+  it('should create a regional structured parameter', async () => {
+    const sample = require('../regional_samples/createStructuredRegionalParam');
+    const parameter = await sample.main(
+      projectId,
+      locationId,
+      regionalParameterId + '-1'
+    );
+    regionalParametersToDelete.push(parameter.name);
+    assert.exists(parameter);
+    assert.equal(
+      parameter.name,
+      `projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-1`
+    );
+  });
+
+  it('should create a regional unstructured parameter', async () => {
+    const sample = require('../regional_samples/createRegionalParam');
+    const parameter = await sample.main(
+      projectId,
+      locationId,
+      regionalParameterId + '-2'
+    );
+    regionalParametersToDelete.push(parameter.name);
+    assert.exists(parameter);
+    assert.equal(
+      parameter.name,
+      `projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-2`
+    );
+  });
+
+  it('should create a regional structured parameter version', async () => {
+    const sample = require('../regional_samples/createStructuredRegionalParamVersion');
+    const parameterVersion = await sample.main(
+      projectId,
+      locationId,
+      regionalParameterId + '-1',
+      parameterVersionId + '-2',
+      jsonPayload
+    );
+    regionalParameterVersionsToDelete.push(parameterVersion.name);
+    assert.exists(parameterVersion);
+    assert.equal(
+      parameterVersion.name,
+      `projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-1/versions/${parameterVersionId}-2`
+    );
+  });
+
+  it('should create a regional unstructured parameter version', async () => {
+    const sample = require('../regional_samples/createRegionalParamVersion');
+    const parameterVersion = await sample.main(
+      projectId,
+      locationId,
+      regionalParameterId + '-2',
+      parameterVersionId + '-3',
+      payload
+    );
+    regionalParameterVersionsToDelete.push(parameterVersion.name);
+    assert.exists(parameterVersion);
+    assert.equal(
+      parameterVersion.name,
+      `projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-2/versions/${parameterVersionId}-3`
+    );
+  });
+
+  it('should list regional parameters', async () => {
+    const sample = require('../regional_samples/listRegionalParams');
+    const parameters = await sample.main(projectId, locationId);
+    assert.exists(parameters);
+  });
+
+  it('should get a regional parameter', async () => {
+    const sample = require('../regional_samples/getRegionalParam');
+    const parameter = await sample.main(
+      projectId,
+      locationId,
+      regionalParameterId
+    );
+    assert.exists(parameter);
+    assert.equal(
+      parameter.name,
+      `projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}`
+    );
+  });
+
+  it('should list regional parameter versions', async () => {
+    const sample = require('../regional_samples/listRegionalParamVersions');
+    const parameterVersions = await sample.main(
+      projectId,
+      locationId,
+      regionalParameterId
+    );
+    assert.exists(parameterVersions);
+  });
+
+  it('should get a regional parameter version', async () => {
+    const sample = require('../regional_samples/getRegionalParamVersion');
+    const parameterVersion = await sample.main(
+      projectId,
+      locationId,
+      regionalParameterId,
+      parameterVersionId + '-1'
+    );
+    assert.exists(parameterVersion);
+    assert.equal(
+      parameterVersion.name,
+      `projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}/versions/${parameterVersionId}-1`
+    );
+    assert.equal(parameterVersion.disabled, false);
+  });
+
+  it('should render regional parameter version', async () => {
+    // Get the current IAM policy.
+    const [policy] = await regionalSecretClient.getIamPolicy({
+      resource: regionalSecret.name,
+    });
+
+    // Add the user with accessor permissions to the bindings list.
+    policy.bindings.push({
+      role: 'roles/secretmanager.secretAccessor',
+      members: [regionalParameter.policyMember.iamPolicyUidPrincipal],
+    });
+
+    // Save the updated IAM policy.
+    await regionalSecretClient.setIamPolicy({
+      resource: regionalSecret.name,
+      policy: policy,
+    });
+
+    await new Promise(resolve => setTimeout(resolve, 120000));
+
+    const sample = require('../regional_samples/renderRegionalParamVersion');
+    const parameterVersion = await sample.main(
+      projectId,
+      locationId,
+      regionalParameterId,
+      parameterVersionId + '-1'
+    );
+    assert.exists(parameterVersion);
+  });
 });