diff --git a/.github/workflows/parametermanager.yaml b/.github/workflows/parametermanager.yaml
new file mode 100644
index 0000000000..9f2c7b2ab9
--- /dev/null
+++ b/.github/workflows/parametermanager.yaml
@@ -0,0 +1,52 @@
+# 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
+#
+#      http://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.
+
+name: parametermanager
+on:
+  push:
+    branches:
+    - main
+    paths:
+    - 'parametermanager/**'
+    - '.github/workflows/parametermanager.yaml'
+  pull_request:
+    types:
+    - opened
+    - reopened
+    - synchronize
+    - labeled
+    paths:
+    - 'parametermanager/**'
+    - '.github/workflows/parametermanager.yaml'
+  schedule:
+  - cron:  '0 0 * * 0'
+jobs:
+  test:
+    # Ref: https://github.com/google-github-actions/auth#usage
+    permissions:
+      contents: 'read'
+      id-token: 'write'
+    if: github.event.action != 'labeled' || github.event.label.name == 'actions:force-run'
+    uses: ./.github/workflows/test.yaml
+    with:
+      name: 'parametermanager'
+      path: 'parametermanager'
+  flakybot:
+    # Ref: https://github.com/google-github-actions/auth#usage
+    permissions:
+      contents: 'read'
+      id-token: 'write'
+    if: github.event_name == 'schedule' && always() # always() submits logs even if tests fail
+    uses: ./.github/workflows/flakybot.yaml
+    needs: [test]
diff --git a/.github/workflows/utils/workflows.json b/.github/workflows/utils/workflows.json
index ec662d7be7..002145312a 100644
--- a/.github/workflows/utils/workflows.json
+++ b/.github/workflows/utils/workflows.json
@@ -79,6 +79,7 @@
   "mediatranslation",
   "monitoring/prometheus",
   "monitoring/snippets",
+  "parametermanager",
   "retail",
   "run/filesystem",
   "scheduler",
diff --git a/parametermanager/package.json b/parametermanager/package.json
new file mode 100644
index 0000000000..62cca15a15
--- /dev/null
+++ b/parametermanager/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "nodejs-parameter-manager-samples",
+  "private": true,
+  "license": "Apache-2.0",
+  "files": [
+    "*.js"
+  ],
+  "author": "Google LLC",
+  "repository": "googleapis/nodejs-parameter-manager",
+  "engines": {
+    "node": ">=20"
+  },
+  "scripts": {
+    "test": "c8 mocha --recursive test/ --timeout=800000"
+  },
+  "directories": {
+    "test": "test"
+  },
+  "dependencies": {
+    "@google-cloud/parametermanager": "^0.1.0"
+  },
+  "devDependencies": {
+    "@google-cloud/secret-manager": "^5.6.0",
+    "c8": "^10.1.3",
+    "chai": "^4.5.0",
+    "mocha": "^11.1.0",
+    "uuid": "^11.0.5"
+  }
+}
diff --git a/parametermanager/regional_samples/createRegionalParam.js b/parametermanager/regional_samples/createRegionalParam.js
new file mode 100644
index 0000000000..e79c049891
--- /dev/null
+++ b/parametermanager/regional_samples/createRegionalParam.js
@@ -0,0 +1,67 @@
+// 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 = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-regional-parameter'
+) {
+  // [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}`);
+  }
+
+  await createRegionalParam();
+  // [END parametermanager_create_regional_param]
+}
+
+// This sample demonstrates how to create a regional parameter with unstructured data.
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/regional_samples/createRegionalParamVersion.js b/parametermanager/regional_samples/createRegionalParamVersion.js
new file mode 100644
index 0000000000..c6ce5fd113
--- /dev/null
+++ b/parametermanager/regional_samples/createRegionalParamVersion.js
@@ -0,0 +1,85 @@
+// 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 = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter',
+  parameterVersionId = 'v1',
+  payload = 'This is unstructured data'
+) {
+  // [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 [response] = await client.createParameterVersion(request);
+    console.log(`Created regional parameter version: ${response.name}`);
+  }
+
+  await createRegionalParamVersion();
+  // [END parametermanager_create_regional_param_version]
+}
+
+// Parse command line arguments
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/regional_samples/createRegionalParamVersionWithSecret.js b/parametermanager/regional_samples/createRegionalParamVersionWithSecret.js
new file mode 100644
index 0000000000..daaad1110a
--- /dev/null
+++ b/parametermanager/regional_samples/createRegionalParamVersionWithSecret.js
@@ -0,0 +1,93 @@
+// 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 = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter',
+  parameterVersionId = 'v1',
+  secretId = 'projects/my-project/secrets/application-secret/version/latest'
+) {
+  // [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 [response] = await client.createParameterVersion(request);
+    console.log(
+      `Created regional parameter version with secret: ${response.name}`
+    );
+  }
+
+  await createRegionalParamVersionWithSecret();
+  // [END parametermanager_create_regional_param_version_with_secret]
+}
+
+// Parse command line arguments
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/regional_samples/createStructuredRegionalParam.js b/parametermanager/regional_samples/createStructuredRegionalParam.js
new file mode 100644
index 0000000000..54cbeea02f
--- /dev/null
+++ b/parametermanager/regional_samples/createStructuredRegionalParam.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';
+
+const {protos} = require('@google-cloud/parametermanager');
+
+/**
+ * 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 = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-json-parameter',
+  formatType = protos.google.cloud.parametermanager.v1.ParameterFormat.JSON
+) {
+  // [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}`
+    );
+  }
+
+  await createStructuredRegionalParam();
+  // [END parametermanager_create_structured_regional_param]
+}
+
+// This sample demonstrates how to create a regional parameter with structured (JSON) data.
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/regional_samples/createStructuredRegionalParamVersion.js b/parametermanager/regional_samples/createStructuredRegionalParamVersion.js
new file mode 100644
index 0000000000..4889ab9a7b
--- /dev/null
+++ b/parametermanager/regional_samples/createStructuredRegionalParamVersion.js
@@ -0,0 +1,85 @@
+// 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 = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter',
+  parameterVersionId = 'v1',
+  payload = {username: 'test-user', host: 'localhost'}
+) {
+  // [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 [response] = await client.createParameterVersion(request);
+    console.log(`Created regional parameter version: ${response.name}`);
+  }
+
+  await createStructuredRegionalParamVersion();
+  // [END parametermanager_create_structured_regional_param_version]
+}
+
+// Parse command line arguments
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/regional_samples/getRegionalParam.js b/parametermanager/regional_samples/getRegionalParam.js
new file mode 100644
index 0000000000..93a5c0b227
--- /dev/null
+++ b/parametermanager/regional_samples/getRegionalParam.js
@@ -0,0 +1,71 @@
+// 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 = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter'
+) {
+  // [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}`
+    );
+  }
+
+  await getRegionalParam();
+  // [END parametermanager_get_regional_param]
+}
+
+// The command-line arguments are passed as an array to main()
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/regional_samples/getRegionalParamVersion.js b/parametermanager/regional_samples/getRegionalParamVersion.js
new file mode 100644
index 0000000000..d59149694d
--- /dev/null
+++ b/parametermanager/regional_samples/getRegionalParamVersion.js
@@ -0,0 +1,84 @@
+// 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 = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter',
+  versionId = 'v1'
+) {
+  // [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')}`
+      );
+    }
+  }
+
+  await getRegionalParamVersion();
+  // [END parametermanager_get_regional_param_version]
+}
+
+// The command-line arguments are passed as an array to main()
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/regional_samples/listRegionalParamVersions.js b/parametermanager/regional_samples/listRegionalParamVersions.js
new file mode 100644
index 0000000000..8615d3d94b
--- /dev/null
+++ b/parametermanager/regional_samples/listRegionalParamVersions.js
@@ -0,0 +1,72 @@
+// 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 = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter'
+) {
+  // [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 iterable = await client.listParameterVersionsAsync(request);
+
+    for await (const version of iterable) {
+      console.log(
+        `Found regional parameter version ${version.name} with state ${version.disabled ? 'disabled' : 'enabled'} `
+      );
+    }
+  }
+
+  await listRegionalParamVersions();
+  // [END parametermanager_list_regional_param_versions]
+}
+
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/regional_samples/listRegionalParams.js b/parametermanager/regional_samples/listRegionalParams.js
new file mode 100644
index 0000000000..5d983788d5
--- /dev/null
+++ b/parametermanager/regional_samples/listRegionalParams.js
@@ -0,0 +1,66 @@
+// 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 = 'my-project', locationId = 'us-central1') {
+  // [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 iterable = await client.listParametersAsync(request);
+
+    for await (const parameter of iterable) {
+      console.log(
+        `Found regional parameter ${parameter.name} with format ${parameter.format}`
+      );
+    }
+  }
+
+  await listRegionalParams();
+  // [END parametermanager_list_regional_params]
+}
+
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/regional_samples/renderRegionalParamVersion.js b/parametermanager/regional_samples/renderRegionalParamVersion.js
new file mode 100644
index 0000000000..a52c48f306
--- /dev/null
+++ b/parametermanager/regional_samples/renderRegionalParamVersion.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 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 = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter',
+  parameterVersionId = 'v1'
+) {
+  // [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 [response] = await client.renderParameterVersion(request);
+
+    console.log(
+      `Rendered regional parameter version: ${response.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: ',
+      response.renderedPayload.toString('utf-8')
+    );
+  }
+
+  await renderRegionalParamVersion();
+  // [END parametermanager_render_regional_param_version]
+}
+
+// Parse command line arguments
+const args = process.argv.slice(2);
+main(...args).catch(console.error);
diff --git a/parametermanager/test/.eslintrc.yml b/parametermanager/test/.eslintrc.yml
new file mode 100644
index 0000000000..9351c489b5
--- /dev/null
+++ b/parametermanager/test/.eslintrc.yml
@@ -0,0 +1,17 @@
+# 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.
+
+---
+env:
+  mocha: true
\ No newline at end of file
diff --git a/parametermanager/test/parametermanager.test.js b/parametermanager/test/parametermanager.test.js
new file mode 100644
index 0000000000..36c6b8fa1b
--- /dev/null
+++ b/parametermanager/test/parametermanager.test.js
@@ -0,0 +1,263 @@
+// 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';
+
+const {assert} = require('chai');
+const cp = require('child_process');
+const {v4: uuidv4} = require('uuid');
+
+const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+const client = new ParameterManagerClient();
+
+const {SecretManagerServiceClient} = require('@google-cloud/secret-manager');
+
+let projectId;
+const locationId = process.env.GCLOUD_LOCATION || 'us-central1';
+const options = {};
+options.apiEndpoint = `parametermanager.${locationId}.rep.googleapis.com`;
+
+const regionalClient = new ParameterManagerClient(options);
+
+const secretOptions = {};
+secretOptions.apiEndpoint = `secretmanager.${locationId}.rep.googleapis.com`;
+
+const regionalSecretClient = new SecretManagerServiceClient(secretOptions);
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const secretId = `test-secret-${uuidv4()}`;
+const regionalParameterId = `test-regional-${uuidv4()}`;
+const parameterVersionId = 'v1';
+
+let regionalParameter;
+let regionalParameterVersion;
+let regionalSecret;
+let regionalSecretVersion;
+
+describe('Parameter Manager samples', () => {
+  const regionalParametersToDelete = [];
+
+  before(async () => {
+    projectId = await client.getProjectId();
+
+    // Create a regional secret
+    [regionalSecret] = await regionalSecretClient.createSecret({
+      parent: `projects/${projectId}/locations/${locationId}`,
+      secretId: secretId,
+    });
+
+    // Create a regional secret version
+    [regionalSecretVersion] = await regionalSecretClient.addSecretVersion({
+      parent: regionalSecret.name,
+      payload: {
+        data: Buffer.from('my super secret data', 'utf-8'),
+      },
+    });
+
+    // Create a test regional parameter
+    [regionalParameter] = await regionalClient.createParameter({
+      parent: `projects/${projectId}/locations/${locationId}`,
+      parameterId: regionalParameterId,
+      parameter: {
+        format: 'JSON',
+      },
+    });
+    regionalParametersToDelete.push(regionalParameter.name);
+
+    // Create a version for the regional parameter
+    [regionalParameterVersion] = await regionalClient.createParameterVersion({
+      parent: regionalParameter.name,
+      parameterVersionId: parameterVersionId,
+      parameterVersion: {
+        payload: {
+          data: Buffer.from(JSON.stringify({key: 'regional_value'}), 'utf-8'),
+        },
+      },
+    });
+  });
+
+  after(async () => {
+    // Clean up
+    regionalParametersToDelete.forEach(async regionalParameterName => {
+      await regionalClient.deleteParameterVersion({
+        name: `${regionalParameterName}/versions/v1`,
+      });
+      if (regionalParameterName === regionalParameter.name) {
+        await regionalClient.deleteParameterVersion({
+          name: `${regionalParameterName}/versions/v12`,
+        });
+      }
+      await regionalClient.deleteParameter({name: regionalParameterName});
+    });
+    await regionalSecretClient.deleteSecret({
+      name: regionalSecret.name,
+    });
+  });
+
+  it('should create regional parameter version with secret references', async () => {
+    const output = execSync(
+      `node regional_samples/createRegionalParamVersionWithSecret.js ${projectId} ${locationId} ${regionalParameterId} ${parameterVersionId}2 ${regionalSecretVersion.name}`
+    );
+    assert.include(
+      output,
+      `Created regional parameter version with secret: projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}/versions/${parameterVersionId}2`
+    );
+  });
+
+  it('should create a regional structured parameter', async () => {
+    const output = execSync(
+      `node regional_samples/createStructuredRegionalParam.js ${projectId} ${locationId} ${regionalParameterId}-2`
+    );
+    regionalParametersToDelete.push(
+      client.parameterPath(projectId, locationId, `${regionalParameterId}-2`)
+    );
+    assert.include(
+      output,
+      `Created regional parameter projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-2 with format JSON`
+    );
+  });
+
+  it('should create a regional unstructured parameter', async () => {
+    const output = execSync(
+      `node regional_samples/createRegionalParam.js ${projectId} ${locationId} ${regionalParameterId}-3`
+    );
+    regionalParametersToDelete.push(
+      client.parameterPath(projectId, locationId, `${regionalParameterId}-3`)
+    );
+    assert.include(
+      output,
+      `Created regional parameter: projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-3`
+    );
+  });
+
+  it('should create a regional structured parameter version', async () => {
+    const output = execSync(
+      `node regional_samples/createStructuredRegionalParamVersion.js ${projectId} ${locationId} ${regionalParameterId}-2 ${parameterVersionId}`
+    );
+    assert.include(
+      output,
+      `Created regional parameter version: projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-2/versions/${parameterVersionId}`
+    );
+  });
+
+  it('should create a regional unstructured parameter version', async () => {
+    const output = execSync(
+      `node regional_samples/createRegionalParamVersion.js ${projectId} ${locationId} ${regionalParameterId}-3 ${parameterVersionId}`
+    );
+    assert.include(
+      output,
+      `Created regional parameter version: projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-3/versions/${parameterVersionId}`
+    );
+  });
+
+  it('should list regional parameters', async () => {
+    const output = execSync(
+      `node regional_samples/listRegionalParams.js ${projectId} ${locationId}`
+    );
+    assert.include(
+      output,
+      `Found regional parameter ${regionalParameter.name} with format ${regionalParameter.format}`
+    );
+    assert.include(
+      output,
+      `Found regional parameter projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-2 with format JSON`
+    );
+    assert.include(
+      output,
+      `Found regional parameter projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-3 with format UNFORMATTED`
+    );
+  });
+
+  it('should get a regional parameter', async () => {
+    const output = execSync(
+      `node regional_samples/getRegionalParam.js ${projectId} ${locationId} ${regionalParameterId}`
+    );
+    assert.include(
+      output,
+      `Found regional parameter ${regionalParameter.name} with format ${regionalParameter.format}`
+    );
+  });
+
+  it('should list regional parameter versions', async () => {
+    const output = execSync(
+      `node regional_samples/listRegionalParamVersions.js ${projectId} ${locationId} ${regionalParameterId}`
+    );
+    assert.include(
+      output,
+      `Found regional parameter version ${regionalParameterVersion.name} with state enabled`
+    );
+    assert.include(
+      output,
+      `Found regional parameter version ${regionalParameterVersion.name}2 with state enabled`
+    );
+  });
+
+  it('should get a regional parameter version', async () => {
+    let output = execSync(
+      `node regional_samples/getRegionalParamVersion.js ${projectId} ${locationId} ${regionalParameterId} ${parameterVersionId}`
+    );
+    assert.include(
+      output,
+      `Found regional parameter version ${regionalParameterVersion.name} with state enabled`
+    );
+
+    output = execSync(
+      `node regional_samples/getRegionalParamVersion.js ${projectId} ${locationId} ${regionalParameterId} ${parameterVersionId}2`
+    );
+    assert.include(
+      output,
+      `Found regional parameter version ${regionalParameterVersion.name}2 with state enabled`
+    );
+    assert.include(
+      output,
+      `Payload: {"db_user":"test_user","db_password":"__REF__(\\"//secretmanager.googleapis.com/${regionalSecretVersion.name}\\")"}`
+    );
+  });
+
+  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 output = execSync(
+      `node regional_samples/renderRegionalParamVersion.js ${projectId} ${locationId} ${regionalParameterId} ${parameterVersionId}2`
+    );
+    assert.include(output, 'Rendered regional parameter version:');
+    assert.include(
+      output,
+      `/parameters/${regionalParameterId}/versions/${parameterVersionId}2`
+    );
+    assert.include(output, 'Rendered payload:');
+    assert.include(
+      output,
+      '{"db_user":"test_user","db_password":"my super secret data"}'
+    );
+  });
+});