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/deleteParam.js b/parametermanager/deleteParam.js
new file mode 100644
index 0000000000..6753e7c269
--- /dev/null
+++ b/parametermanager/deleteParam.js
@@ -0,0 +1,55 @@
+// 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';
+
+/**
+ * Deletes a parameter from the global location 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} parameterId - The ID of the parameter to delete.
+ */
+async function main(projectId = 'my-project', parameterId = 'my-parameter') {
+  // [START parametermanager_delete_param]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const parameterId = 'my-parameter';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Instantiates a client
+  const client = new ParameterManagerClient();
+
+  async function deleteParam() {
+    // Construct the fully qualified parameter name
+    const name = client.parameterPath(projectId, 'global', parameterId);
+
+    // Delete the parameter
+    await client.deleteParameter({
+      name: name,
+    });
+
+    console.log(`Deleted parameter: ${name}`);
+  }
+
+  await deleteParam();
+  // [END parametermanager_delete_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/deleteParamVersion.js b/parametermanager/deleteParamVersion.js
new file mode 100644
index 0000000000..d5e0da3743
--- /dev/null
+++ b/parametermanager/deleteParamVersion.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';
+
+/**
+ * Deletes a specific version of an existing parameter in the global location
+ * 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} parameterId - The ID of the parameter for which version is to be deleted.
+ * @param {string} versionId - The version ID of the parameter to delete.
+ */
+async function main(
+  projectId = 'my-project',
+  parameterId = 'my-parameter',
+  versionId = 'v1'
+) {
+  // [START parametermanager_delete_param_version]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const parameterId = 'my-parameter';
+  // const versionId = 'v1';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Instantiates a client
+  const client = new ParameterManagerClient();
+
+  async function deleteParamVersion() {
+    // Construct the fully qualified parameter version name
+    const name = client.parameterVersionPath(
+      projectId,
+      'global',
+      parameterId,
+      versionId
+    );
+
+    // Delete the parameter version
+    await client.deleteParameterVersion({
+      name: name,
+    });
+
+    console.log(`Deleted parameter version: ${name}`);
+  }
+
+  await deleteParamVersion();
+  // [END parametermanager_delete_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/disableParamVersion.js b/parametermanager/disableParamVersion.js
new file mode 100644
index 0000000000..237767910f
--- /dev/null
+++ b/parametermanager/disableParamVersion.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';
+
+/**
+ * Disables a specific version of a global parameter in Google Cloud Parameter Manager.
+ * This function demonstrates how to disable a global parameter version by setting
+ * its 'disabled' field to true using the Parameter Manager client library.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is located.
+ * @param {string} parameterId - The ID of the parameter for which version is to be disabled.
+ * @param {string} versionId - The version ID of the parameter to be disabled.
+ */
+async function main(
+  projectId = 'my-project',
+  parameterId = 'my-parameter',
+  versionId = 'v1'
+) {
+  // [START parametermanager_disable_param_version]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const parameterId = 'my-parameter';
+  // const versionId = 'v1';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Instantiates a client
+  const client = new ParameterManagerClient();
+
+  async function disableParamVersion() {
+    // Construct the full resource name
+    const name = client.parameterVersionPath(
+      projectId,
+      'global',
+      parameterId,
+      versionId
+    );
+
+    // Construct the request
+    const request = {
+      parameterVersion: {
+        name: name,
+        disabled: true,
+      },
+      updateMask: {
+        paths: ['disabled'],
+      },
+    };
+
+    // Make the API call to update the parameter version
+    const [response] = await client.updateParameterVersion(request);
+
+    console.log(
+      `Disabled parameter version ${response.name} for parameter ${parameterId}`
+    );
+    return response;
+  }
+
+  await disableParamVersion();
+  // [END parametermanager_disable_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/enableParamVersion.js b/parametermanager/enableParamVersion.js
new file mode 100644
index 0000000000..aa05e17932
--- /dev/null
+++ b/parametermanager/enableParamVersion.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';
+
+/**
+ * Enables a specific version of a parameter in Google Cloud Parameter Manager.
+ * This function demonstrates how to enable a parameter version by setting
+ * its 'disabled' field to false using the Parameter Manager client library.
+ *
+ * @param {string} projectId - The Google Cloud project ID where the parameter is located.
+ * @param {string} parameterId - The ID of the parameter for which version is to be enabled.
+ * @param {string} versionId - The version ID of the parameter to be enabled.
+ */
+async function main(
+  projectId = 'my-project',
+  parameterId = 'my-parameter',
+  versionId = 'v1'
+) {
+  // [START parametermanager_enable_param_version]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const parameterId = 'my-parameter';
+  // const versionId = 'v1';
+
+  // Imports the Parameter Manager library
+  const {ParameterManagerClient} = require('@google-cloud/parametermanager');
+
+  // Instantiates a client
+  const client = new ParameterManagerClient();
+
+  async function enableParamVersion() {
+    // Construct the full resource name
+    const name = client.parameterVersionPath(
+      projectId,
+      'global',
+      parameterId,
+      versionId
+    );
+
+    // Construct the request
+    const request = {
+      parameterVersion: {
+        name: name,
+        disabled: false,
+      },
+      updateMask: {
+        paths: ['disabled'],
+      },
+    };
+
+    // Make the API call to update the parameter version
+    const [response] = await client.updateParameterVersion(request);
+
+    console.log(
+      `Enabled parameter version ${response.name} for parameter ${parameterId}`
+    );
+    return response;
+  }
+
+  await enableParamVersion();
+  // [END parametermanager_enable_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/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/quickstart.js b/parametermanager/quickstart.js
new file mode 100644
index 0000000000..ad4d71e7ae
--- /dev/null
+++ b/parametermanager/quickstart.js
@@ -0,0 +1,97 @@
+// 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.
+
+/**
+ * This is a quickstart sample for the Google Cloud Parameter Manager.
+ * It demonstrates how to create a parameter, create a parameter version,
+ * view the parameter version, and render its payload.
+ */
+
+'use strict';
+
+/**
+ * Quickstart example for using Google Cloud Parameter Manager to
+ * create a global parameter, add a version with a JSON payload,
+ * and fetch the parameter version details.
+ *
+ * @param {string} projectId - The Google Cloud project ID where parameter is created.
+ * @param {string} parameterId - The ID of the new parameter.
+ * @param {string} parameterVersionId - The ID of the parameter version.
+ */
+async function main(
+  projectId = 'my-project',
+  parameterId = 'my-parameter',
+  parameterVersionId = 'v1'
+) {
+  // [START parametermanager_quickstart]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const parameterId = 'my-parameter';
+  // const parameterVersionId = 'v1';
+
+  // Imports the Google Cloud Parameter Manager library
+  const {
+    ParameterManagerClient,
+    protos,
+  } = require('@google-cloud/parametermanager');
+
+  // Instantiates a client
+  const client = new ParameterManagerClient();
+
+  async function quickstart() {
+    const parent = client.locationPath(projectId, 'global');
+    const parameterRequest = {
+      parent: parent,
+      parameterId: parameterId,
+      parameter: {
+        format: protos.google.cloud.parametermanager.v1.ParameterFormat.JSON,
+      },
+    };
+
+    // Create a new parameter
+    const [parameter] = await client.createParameter(parameterRequest);
+    console.log(
+      `Created parameter ${parameter.name} with format ${parameter.format}`
+    );
+
+    const payload = {username: 'test-user', host: 'localhost'};
+    // Create a new parameter version
+    const [parameterVersion] = await client.createParameterVersion({
+      parent: parameter.name,
+      parameterVersionId: parameterVersionId,
+      parameterVersion: {
+        payload: {
+          data: Buffer.from(JSON.stringify(payload), 'utf8'),
+        },
+      },
+    });
+    console.log(`Created parameter version: ${parameterVersion.name}`);
+
+    // Get the parameter version
+    const [response] = await client.getParameterVersion({
+      name: parameterVersion.name,
+    });
+    console.log(`Retrieved parameter version: ${response.name}`);
+    console.log('Payload:', response.payload.data.toString('utf8'));
+  }
+
+  await quickstart();
+  // [END parametermanager_quickstart]
+}
+
+// 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/deleteRegionalParam.js b/parametermanager/regional_samples/deleteRegionalParam.js
new file mode 100644
index 0000000000..9f2e183a06
--- /dev/null
+++ b/parametermanager/regional_samples/deleteRegionalParam.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';
+
+/**
+ * Deletes 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 delete.
+ */
+async function main(
+  projectId = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter'
+) {
+  // [START parametermanager_delete_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 deleteRegionalParam() {
+    // Construct the fully qualified parameter name
+    const name = client.parameterPath(projectId, locationId, parameterId);
+
+    // Delete the parameter
+    await client.deleteParameter({
+      name: name,
+    });
+
+    console.log(`Deleted regional parameter: ${name}`);
+  }
+
+  await deleteRegionalParam();
+  // [END parametermanager_delete_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/deleteRegionalParamVersion.js b/parametermanager/regional_samples/deleteRegionalParamVersion.js
new file mode 100644
index 0000000000..bab32ec8b3
--- /dev/null
+++ b/parametermanager/regional_samples/deleteRegionalParamVersion.js
@@ -0,0 +1,75 @@
+// 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';
+
+/**
+ * Deletes 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 is to be deleted.
+ * @param {string} versionId - The version ID of the parameter to delete.
+ */
+async function main(
+  projectId = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter',
+  versionId = 'v1'
+) {
+  // [START parametermanager_delete_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 deleteRegionalParamVersion() {
+    // Construct the fully qualified parameter version name
+    const name = client.parameterVersionPath(
+      projectId,
+      locationId,
+      parameterId,
+      versionId
+    );
+
+    // Delete the parameter version
+    await client.deleteParameterVersion({
+      name: name,
+    });
+
+    console.log(`Deleted regional parameter version: ${name}`);
+  }
+
+  await deleteRegionalParamVersion();
+  // [END parametermanager_delete_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/disableRegionalParamVersion.js b/parametermanager/regional_samples/disableRegionalParamVersion.js
new file mode 100644
index 0000000000..8992c6c2a6
--- /dev/null
+++ b/parametermanager/regional_samples/disableRegionalParamVersion.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';
+
+/**
+ * Disables a specific version of an existing parameter in the specified region
+ * of the specified project using the Google Cloud Parameter Manager SDK.
+ *
+ * This function demonstrates how to disable a global parameter version by setting
+ * its 'disabled' field to true using the Parameter Manager client library.
+ *
+ * @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 is to be disabled.
+ * @param {string} versionId - The version ID of the parameter to be disabled.
+ */
+async function main(
+  projectId = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter',
+  versionId = 'v1'
+) {
+  // [START parametermanager_disable_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 disableRegionalParamVersion() {
+    // Construct the full resource name
+    const name = client.parameterVersionPath(
+      projectId,
+      locationId,
+      parameterId,
+      versionId
+    );
+
+    // Construct the request
+    const request = {
+      parameterVersion: {
+        name: name,
+        disabled: true,
+      },
+      updateMask: {
+        paths: ['disabled'],
+      },
+    };
+
+    // Make the API call to update the parameter version
+    const [response] = await client.updateParameterVersion(request);
+
+    console.log(
+      `Disabled regional parameter version ${response.name} for parameter ${parameterId}`
+    );
+    return response;
+  }
+
+  await disableRegionalParamVersion();
+  // [END parametermanager_disable_regional_param_version]
+}
+
+// The command-line arguments are passed as an array to main().
+main(...process.argv.slice(2)).catch(console.error);
diff --git a/parametermanager/regional_samples/enableRegionalParamVersion.js b/parametermanager/regional_samples/enableRegionalParamVersion.js
new file mode 100644
index 0000000000..2351d472e9
--- /dev/null
+++ b/parametermanager/regional_samples/enableRegionalParamVersion.js
@@ -0,0 +1,87 @@
+// 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';
+
+/**
+ * Enables a specific version of a regional parameter in Google Cloud Parameter Manager.
+ * This function demonstrates how to enable a regional parameter version by setting
+ * its 'disabled' field to false using the Parameter Manager client library.
+ *
+ * @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 is to be enabled.
+ * @param {string} versionId - The version ID of the parameter to be enabled.
+ */
+async function main(
+  projectId = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter',
+  versionId = 'v1'
+) {
+  // [START parametermanager_enable_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 enableRegionalParamVersion() {
+    // Construct the full resource name
+    const name = client.parameterVersionPath(
+      projectId,
+      locationId,
+      parameterId,
+      versionId
+    );
+
+    // Construct the request
+    const request = {
+      parameterVersion: {
+        name: name,
+        disabled: false,
+      },
+      updateMask: {
+        paths: ['disabled'],
+      },
+    };
+
+    // Make the API call to update the parameter version
+    const [response] = await client.updateParameterVersion(request);
+
+    console.log(
+      `Enabled regional parameter version ${response.name} for parameter ${parameterId}`
+    );
+    return response;
+  }
+
+  await enableRegionalParamVersion();
+  // [END parametermanager_enable_regional_param_version]
+}
+
+// The command-line arguments are passed as an array to main().
+main(...process.argv.slice(2)).catch(console.error);
diff --git a/parametermanager/regional_samples/regionalQuickstart.js b/parametermanager/regional_samples/regionalQuickstart.js
new file mode 100644
index 0000000000..1a2b8f24ea
--- /dev/null
+++ b/parametermanager/regional_samples/regionalQuickstart.js
@@ -0,0 +1,99 @@
+// 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';
+
+/**
+ * Quickstart example for using Google Cloud Parameter Manager to
+ * create a regional parameter, add a version with a JSON payload,
+ * fetch the parameter version details and render its payload.
+ *
+ * @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} parameterVersionId - The ID of the parameter version to create.
+ */
+async function main(
+  projectId = 'my-project',
+  locationId = 'us-central1',
+  parameterId = 'my-parameter',
+  parameterVersionId = 'v1'
+) {
+  // [START parametermanager_regional_quickstart]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'my-project';
+  // const locationId = 'us-central1';
+  // const parameterId = 'my-parameter';
+  // const parameterVersionId = 'v1';
+
+  // Imports the Google Cloud Parameter Manager library
+  const {
+    ParameterManagerClient,
+    protos,
+  } = 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 regionalQuickstart() {
+    const parent = client.locationPath(projectId, locationId);
+    const parameterRequest = {
+      parent: parent,
+      parameterId: parameterId,
+      parameter: {
+        format: protos.google.cloud.parametermanager.v1.ParameterFormat.JSON,
+      },
+    };
+
+    // Create a new parameter
+    const [parameter] = await client.createParameter(parameterRequest);
+    console.log(
+      `Created regional parameter ${parameter.name} with format ${parameter.format}`
+    );
+
+    const payload = {username: 'test-user', host: 'localhost'};
+    // Create a new parameter version
+    const [parameterVersion] = await client.createParameterVersion({
+      parent: parameter.name,
+      parameterVersionId: parameterVersionId,
+      parameterVersion: {
+        payload: {
+          data: Buffer.from(JSON.stringify(payload), 'utf8'),
+        },
+      },
+    });
+    console.log(`Created regional parameter version: ${parameterVersion.name}`);
+
+    // Get the parameter version
+    const [response] = await client.getParameterVersion({
+      name: parameterVersion.name,
+    });
+    console.log(`Retrieved regional parameter version: ${response.name}`);
+    console.log('Payload:', response.payload.data.toString('utf8'));
+  }
+
+  await regionalQuickstart();
+  // [END parametermanager_regional_quickstart]
+}
+
+// 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/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..8323853801
--- /dev/null
+++ b/parametermanager/test/parametermanager.test.js
@@ -0,0 +1,226 @@
+// 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();
+
+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 execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const parameterId = `test-parameter-${uuidv4()}`;
+const regionalParameterId = `test-regional-${uuidv4()}`;
+const parameterVersionId = 'v1';
+
+let parameter;
+let regionalParameter;
+let parameterVersion;
+let regionalParameterVersion;
+
+describe('Parameter Manager samples', () => {
+  const parametersToDelete = [];
+  const regionalParametersToDelete = [];
+
+  before(async () => {
+    projectId = await client.getProjectId();
+
+    // Create a test global parameter
+    [parameter] = await client.createParameter({
+      parent: `projects/${projectId}/locations/global`,
+      parameterId: parameterId,
+      parameter: {
+        format: 'JSON',
+      },
+    });
+
+    // Create a test regional parameter
+    [regionalParameter] = await regionalClient.createParameter({
+      parent: `projects/${projectId}/locations/${locationId}`,
+      parameterId: regionalParameterId,
+      parameter: {
+        format: 'JSON',
+      },
+    });
+
+    // Create a version for the global parameter
+    [parameterVersion] = await client.createParameterVersion({
+      parent: parameter.name,
+      parameterVersionId: parameterVersionId,
+      parameterVersion: {
+        payload: {
+          data: Buffer.from(JSON.stringify({key: 'global_value'}), 'utf-8'),
+        },
+      },
+    });
+
+    // Create a version for the regional parameter
+    [regionalParameterVersion] = await regionalClient.createParameterVersion({
+      parent: regionalParameter.name,
+      parameterVersionId: parameterVersionId,
+      parameterVersion: {
+        payload: {
+          data: Buffer.from(JSON.stringify({key: 'regional_value'}), 'utf-8'),
+        },
+      },
+    });
+  });
+
+  after(async () => {
+    // Clean up
+    parametersToDelete.forEach(async parameterName => {
+      await client.deleteParameterVersion({
+        name: `${parameterName}/versions/v1`,
+      });
+      await client.deleteParameter({name: parameterName});
+    });
+    regionalParametersToDelete.forEach(async regionalParameterName => {
+      await regionalClient.deleteParameterVersion({
+        name: `${regionalParameterName}/versions/v1`,
+      });
+      await regionalClient.deleteParameter({name: regionalParameterName});
+    });
+  });
+
+  it('should runs the quickstart', async () => {
+    const output = execSync(
+      `node quickstart.js ${projectId} ${parameterId}-quickstart ${parameterVersionId}`
+    );
+    parametersToDelete.push(`${parameterId}-quickstart`);
+    assert.include(
+      output,
+      `Created parameter projects/${projectId}/locations/global/parameters/${parameterId}-quickstart with format JSON`
+    );
+    assert.include(
+      output,
+      `Created parameter version: projects/${projectId}/locations/global/parameters/${parameterId}-quickstart/versions/v1`
+    );
+    assert.include(
+      output,
+      `Retrieved parameter version: projects/${projectId}/locations/global/parameters/${parameterId}-quickstart/versions/v1`
+    );
+    assert.include(
+      output,
+      'Payload: {"username":"test-user","host":"localhost"}'
+    );
+  });
+
+  it('should runs the regional quickstart', async () => {
+    const output = execSync(
+      `node regional_samples/regionalQuickstart.js ${projectId} ${locationId} ${regionalParameterId}-quickstart ${parameterVersionId}`
+    );
+    regionalParametersToDelete.push(`${regionalParameterId}-quickstart`);
+    assert.include(
+      output,
+      `Created regional parameter projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-quickstart with format JSON`
+    );
+    assert.include(
+      output,
+      `Created regional parameter version: projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-quickstart/versions/v1`
+    );
+    assert.include(
+      output,
+      `Retrieved regional parameter version: projects/${projectId}/locations/${locationId}/parameters/${regionalParameterId}-quickstart/versions/v1`
+    );
+    assert.include(
+      output,
+      'Payload: {"username":"test-user","host":"localhost"}'
+    );
+  });
+
+  it('should disable a parameter version', async () => {
+    const output = execSync(
+      `node disableParamVersion.js ${projectId} ${parameterId} ${parameterVersionId}`
+    );
+    assert.include(
+      output,
+      `Disabled parameter version ${parameterVersion.name} for parameter ${parameterId}`
+    );
+  });
+
+  it('should disable a regional parameter version', async () => {
+    const output = execSync(
+      `node regional_samples/disableRegionalParamVersion.js ${projectId} ${locationId} ${regionalParameterId} ${parameterVersionId}`
+    );
+    assert.include(
+      output,
+      `Disabled regional parameter version ${regionalParameterVersion.name} for parameter ${regionalParameterId}`
+    );
+  });
+
+  it('should enable a parameter version', async () => {
+    const output = execSync(
+      `node enableParamVersion.js ${projectId} ${parameterId} ${parameterVersionId}`
+    );
+    assert.include(
+      output,
+      `Enabled parameter version ${parameterVersion.name} for parameter ${parameterId}`
+    );
+  });
+
+  it('should enable a regional parameter version', async () => {
+    const output = execSync(
+      `node regional_samples/enableRegionalParamVersion.js ${projectId} ${locationId} ${regionalParameterId} ${parameterVersionId}`
+    );
+    assert.include(
+      output,
+      `Enabled regional parameter version ${regionalParameterVersion.name} for parameter ${regionalParameterId}`
+    );
+  });
+
+  it('should delete a parameter version', async () => {
+    const output = execSync(
+      `node deleteParamVersion.js ${projectId} ${parameterId} ${parameterVersionId}`
+    );
+    assert.include(
+      output,
+      `Deleted parameter version: ${parameterVersion.name}`
+    );
+  });
+
+  it('should delete a regional parameter version', async () => {
+    const output = execSync(
+      `node regional_samples/deleteRegionalParamVersion.js ${projectId} ${locationId} ${regionalParameterId} ${parameterVersionId}`
+    );
+    assert.include(
+      output,
+      `Deleted regional parameter version: ${regionalParameterVersion.name}`
+    );
+  });
+
+  it('should delete a parameter', async () => {
+    const output = execSync(`node deleteParam.js ${projectId} ${parameterId}`);
+    assert.include(output, `Deleted parameter: ${parameter.name}`);
+  });
+
+  it('should delete a regional parameter', async () => {
+    const output = execSync(
+      `node regional_samples/deleteRegionalParam.js ${projectId} ${locationId} ${regionalParameterId}`
+    );
+    assert.include(
+      output,
+      `Deleted regional parameter: ${regionalParameter.name}`
+    );
+  });
+});