diff --git a/storage/disableDefaultEventBasedHold.js b/storage/disableDefaultEventBasedHold.js
new file mode 100644
index 0000000000..53237fe56a
--- /dev/null
+++ b/storage/disableDefaultEventBasedHold.js
@@ -0,0 +1,57 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(bucketName = 'my-bucket') {
+  // [START storage_disable_default_event_based_hold]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function disableDefaultEventBasedHold() {
+    try {
+      // Disables a default event-based hold for a bucket.
+      await storage.bucket(bucketName).setMetadata({
+        defaultEventBasedHold: false,
+      });
+      console.log(`Default event-based hold was disabled for ${bucketName}.`);
+    } catch (error) {
+      console.error(
+        'Error executing disable default event-based hold:',
+        error.message || error
+      );
+    }
+  }
+
+  disableDefaultEventBasedHold();
+  // [END storage_disable_default_event_based_hold]
+}
+main(...process.argv.slice(2));
diff --git a/storage/enableDefaultEventBasedHold.js b/storage/enableDefaultEventBasedHold.js
new file mode 100644
index 0000000000..16efcfcf94
--- /dev/null
+++ b/storage/enableDefaultEventBasedHold.js
@@ -0,0 +1,59 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(bucketName = 'my-bucket') {
+  // [START storage_enable_default_event_based_hold]
+
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function enableDefaultEventBasedHold() {
+    try {
+      // Enables a default event-based hold for the bucket.
+      await storage.bucket(bucketName).setMetadata({
+        defaultEventBasedHold: true,
+      });
+
+      console.log(`Default event-based hold was enabled for ${bucketName}.`);
+    } catch (error) {
+      console.error(
+        'Error executing enable default event-based hold:',
+        error.message || error
+      );
+    }
+  }
+
+  enableDefaultEventBasedHold();
+  // [END storage_enable_default_event_based_hold]
+}
+main(...process.argv.slice(2));
diff --git a/storage/getDefaultEventBasedHold.js b/storage/getDefaultEventBasedHold.js
new file mode 100644
index 0000000000..b9b3837cb5
--- /dev/null
+++ b/storage/getDefaultEventBasedHold.js
@@ -0,0 +1,56 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(bucketName = 'my-bucket') {
+  // [START storage_get_default_event_based_hold]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function getDefaultEventBasedHold() {
+    try {
+      const [metadata] = await storage.bucket(bucketName).getMetadata();
+      console.log(
+        `Default event-based hold: ${metadata.defaultEventBasedHold}.`
+      );
+    } catch (error) {
+      console.error(
+        'Error executing get default event-based hold:',
+        error.message || error
+      );
+    }
+  }
+
+  getDefaultEventBasedHold();
+  // [END storage_get_default_event_based_hold]
+}
+main(...process.argv.slice(2));
diff --git a/storage/getRetentionPolicy.js b/storage/getRetentionPolicy.js
new file mode 100644
index 0000000000..6df1fdec3f
--- /dev/null
+++ b/storage/getRetentionPolicy.js
@@ -0,0 +1,64 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(bucketName = 'my-bucket') {
+  // [START storage_get_retention_policy]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function getRetentionPolicy() {
+    try {
+      const [metadata] = await storage.bucket(bucketName).getMetadata();
+      if (metadata.retentionPolicy) {
+        const retentionPolicy = metadata.retentionPolicy;
+        console.log('A retention policy exists!');
+        console.log(`Period: ${retentionPolicy.retentionPeriod}`);
+        console.log(`Effective time: ${retentionPolicy.effectiveTime}`);
+        if (retentionPolicy.isLocked) {
+          console.log('Policy is locked');
+        } else {
+          console.log('Policy is unlocked');
+        }
+      }
+    } catch (error) {
+      console.error(
+        'Error executing get bucket retention policy:',
+        error.message || error
+      );
+    }
+  }
+
+  getRetentionPolicy();
+  // [END storage_get_retention_policy]
+}
+main(...process.argv.slice(2));
diff --git a/storage/lockRetentionPolicy.js b/storage/lockRetentionPolicy.js
new file mode 100644
index 0000000000..7323803579
--- /dev/null
+++ b/storage/lockRetentionPolicy.js
@@ -0,0 +1,65 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(bucketName = 'my-bucket') {
+  // [START storage_lock_retention_policy]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function lockRetentionPolicy() {
+    try {
+      // Gets the current metageneration value for the bucket, required by
+      // lock_retention_policy
+      const [unlockedMetadata] = await storage.bucket(bucketName).getMetadata();
+
+      // Warning: Once a retention policy is locked, it cannot be unlocked. The
+      // retention period can only be increased
+      const [lockedMetadata] = await storage
+        .bucket(bucketName)
+        .lock(unlockedMetadata.metageneration);
+      console.log(`Retention policy for ${bucketName} is now locked`);
+      console.log(
+        `Retention policy effective as of ${lockedMetadata.retentionPolicy.effectiveTime}`
+      );
+    } catch (error) {
+      console.error(
+        'Error executing lock bucket retention policy:',
+        error.message || error
+      );
+    }
+  }
+
+  lockRetentionPolicy();
+  // [END storage_lock_retention_policy]
+}
+main(...process.argv.slice(2));
diff --git a/storage/releaseEventBasedHold.js b/storage/releaseEventBasedHold.js
new file mode 100644
index 0000000000..fcc7831008
--- /dev/null
+++ b/storage/releaseEventBasedHold.js
@@ -0,0 +1,73 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(
+  bucketName = 'my-bucket',
+  fileName = 'test.txt',
+  metagenerationMatchPrecondition = null
+) {
+  // [START storage_release_event_based_hold]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // The ID of your GCS file
+  // const fileName = 'your-file-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function releaseEventBasedHold() {
+    try {
+      // Optional: set a meta-generation-match precondition to avoid potential race
+      // conditions and data corruptions. The request to set metadata is aborted if the
+      // object's metageneration number does not match your precondition.
+      const options = {
+        ifMetagenerationMatch: metagenerationMatchPrecondition,
+      };
+
+      await storage.bucket(bucketName).file(fileName).setMetadata(
+        {
+          eventBasedHold: false,
+        },
+        options
+      );
+      console.log(`Event-based hold was released for ${fileName}.`);
+    } catch (error) {
+      console.error(
+        'Error executing release event-based hold:',
+        error.message || error
+      );
+    }
+  }
+
+  releaseEventBasedHold();
+  // [END storage_release_event_based_hold]
+}
+main(...process.argv.slice(2));
diff --git a/storage/releaseTemporaryHold.js b/storage/releaseTemporaryHold.js
new file mode 100644
index 0000000000..d191a93034
--- /dev/null
+++ b/storage/releaseTemporaryHold.js
@@ -0,0 +1,73 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(
+  bucketName = 'my-bucket',
+  fileName = 'test.txt',
+  metagenerationMatchPrecondition = null
+) {
+  // [START storage_release_temporary_hold]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // The ID of your GCS file
+  // const fileName = 'your-file-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function releaseTemporaryHold() {
+    try {
+      // Optional: set a meta-generation-match precondition to avoid potential race
+      // conditions and data corruptions. The request to set metadata is aborted if the
+      // object's metageneration number does not match your precondition.
+      const options = {
+        ifMetagenerationMatch: metagenerationMatchPrecondition,
+      };
+
+      await storage.bucket(bucketName).file(fileName).setMetadata(
+        {
+          temporaryHold: false,
+        },
+        options
+      );
+      console.log(`Temporary hold was released for ${fileName}.`);
+    } catch (error) {
+      console.error(
+        'Error executing release temporary hold:',
+        error.message || error
+      );
+    }
+  }
+
+  releaseTemporaryHold();
+  // [END storage_release_temporary_hold]
+}
+main(...process.argv.slice(2));
diff --git a/storage/removeRetentionPolicy.js b/storage/removeRetentionPolicy.js
new file mode 100644
index 0000000000..05938e18a9
--- /dev/null
+++ b/storage/removeRetentionPolicy.js
@@ -0,0 +1,61 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(bucketName = 'my-bucket') {
+  // [START storage_remove_retention_policy]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function removeRetentionPolicy() {
+    try {
+      const [metadata] = await storage.bucket(bucketName).getMetadata();
+      if (metadata.retentionPolicy && metadata.retentionPolicy.isLocked) {
+        console.log(
+          'Unable to remove retention period as retention policy is locked.'
+        );
+      } else {
+        await storage.bucket(bucketName).removeRetentionPeriod();
+        console.log(`Removed bucket ${bucketName} retention policy.`);
+      }
+    } catch (error) {
+      console.error(
+        'Error executing remove bucket retention policy:',
+        error.message || error
+      );
+    }
+  }
+
+  removeRetentionPolicy();
+  // [END storage_remove_retention_policy]
+}
+main(...process.argv.slice(2));
diff --git a/storage/setEventBasedHold.js b/storage/setEventBasedHold.js
new file mode 100644
index 0000000000..a46309ce1d
--- /dev/null
+++ b/storage/setEventBasedHold.js
@@ -0,0 +1,74 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(
+  bucketName = 'my-bucket',
+  fileName = 'test.txt',
+  metagenerationMatchPrecondition = null
+) {
+  // [START storage_set_event_based_hold]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // The ID of your GCS file
+  // const fileName = 'your-file-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function setEventBasedHold() {
+    try {
+      // Optional: set a meta-generation-match precondition to avoid potential race
+      // conditions and data corruptions. The request to set metadata is aborted if the
+      // object's metageneration number does not match your precondition.
+      const options = {
+        ifMetagenerationMatch: metagenerationMatchPrecondition,
+      };
+
+      // Set event-based hold
+      await storage.bucket(bucketName).file(fileName).setMetadata(
+        {
+          eventBasedHold: true,
+        },
+        options
+      );
+      console.log(`Event-based hold was set for ${fileName}.`);
+    } catch (error) {
+      console.error(
+        'Error executing set event-based hold:',
+        error.message || error
+      );
+    }
+  }
+
+  setEventBasedHold();
+  // [END storage_set_event_based_hold]
+}
+main(...process.argv.slice(2));
diff --git a/storage/setRetentionPolicy.js b/storage/setRetentionPolicy.js
new file mode 100644
index 0000000000..cb175a8f25
--- /dev/null
+++ b/storage/setRetentionPolicy.js
@@ -0,0 +1,61 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(bucketName = 'my-bucket', retentionPeriod = 5) {
+  // [START storage_set_retention_policy]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // The retention period for objects in bucket
+  // const retentionPeriod = 3600; // 1 hour in seconds
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function setRetentionPolicy() {
+    try {
+      const [metadata] = await storage
+        .bucket(bucketName)
+        .setRetentionPeriod(retentionPeriod);
+      console.log(
+        `Bucket ${bucketName} retention period set for ${metadata.retentionPolicy.retentionPeriod} seconds.`
+      );
+    } catch (error) {
+      console.error(
+        'Error executing set bucket retention policy:',
+        error.message || error
+      );
+    }
+  }
+
+  setRetentionPolicy();
+  // [END storage_set_retention_policy]
+}
+main(...process.argv.slice(2));
diff --git a/storage/setTemporaryHold.js b/storage/setTemporaryHold.js
new file mode 100644
index 0000000000..a17d56b7a8
--- /dev/null
+++ b/storage/setTemporaryHold.js
@@ -0,0 +1,73 @@
+// Copyright 2020 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.
+
+'use strict';
+
+/**
+ * This application demonstrates how to use Bucket Lock operations on buckets
+ * and objects using the Google Cloud Storage API.
+ *
+ * For more information read the documentation
+ * at https://cloud.google.com/storage/docs/bucket-lock
+ */
+
+function main(
+  bucketName = 'my-bucket',
+  fileName = 'test.txt',
+  metagenerationMatchPrecondition = null
+) {
+  // [START storage_set_temporary_hold]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The ID of your GCS bucket
+  // const bucketName = 'your-unique-bucket-name';
+
+  // The ID of your GCS file
+  // const fileName = 'your-file-name';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+
+  // Creates a client
+  const storage = new Storage();
+
+  async function setTemporaryHold() {
+    try {
+      // Optional: set a meta-generation-match precondition to avoid potential race
+      // conditions and data corruptions. The request to set metadata is aborted if the
+      // object's metageneration number does not match your precondition.
+      const options = {
+        ifMetagenerationMatch: metagenerationMatchPrecondition,
+      };
+
+      await storage.bucket(bucketName).file(fileName).setMetadata(
+        {
+          temporaryHold: true,
+        },
+        options
+      );
+      console.log(`Temporary hold was set for ${fileName}.`);
+    } catch (error) {
+      console.error(
+        'Error executing set temporary hold:',
+        error.message || error
+      );
+    }
+  }
+
+  setTemporaryHold();
+  // [END storage_set_temporary_hold]
+}
+main(...process.argv.slice(2));
diff --git a/storage/system-test/bucketLock.test.js b/storage/system-test/bucketLock.test.js
new file mode 100644
index 0000000000..f5a1964fe0
--- /dev/null
+++ b/storage/system-test/bucketLock.test.js
@@ -0,0 +1,150 @@
+// Copyright 2019 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+const path = require('path');
+const {Storage} = require('@google-cloud/storage');
+const {assert} = require('chai');
+const {before, after, it} = require('mocha');
+const cp = require('child_process');
+const uuid = require('uuid');
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const storage = new Storage();
+const cwd = path.join(__dirname, '..');
+const bucketName = `nodejs-storage-samples-${uuid.v4()}`;
+const bucket = storage.bucket(bucketName);
+const fileName = 'test.txt';
+
+const uploadFilePath = path.join(cwd, 'resources', fileName);
+
+before(async () => {
+  await bucket.create();
+  await bucket.upload(uploadFilePath);
+});
+
+after(async () => {
+  // The last test locks a retention policy. Wait for the retention
+  // period (5s) to pass before attempting to delete objects and the bucket.
+  // A small buffer is added to account for timing inaccuracies.
+  await new Promise(resolve => setTimeout(resolve, 6000));
+
+  try {
+    await bucket.deleteFiles({force: true});
+  } catch (err) {
+    console.error('Failed to delete files during cleanup:', err);
+  }
+  try {
+    await bucket.delete();
+  } catch (err) {
+    console.error('Failed to delete bucket during cleanup:', err);
+  }
+});
+
+it('should set a retention policy on a bucket', () => {
+  const retentionPeriod = 5;
+  const output = execSync(
+    `node setRetentionPolicy.js ${bucketName} ${retentionPeriod}`
+  );
+  assert.match(
+    output,
+    new RegExp(
+      `Bucket ${bucketName} retention period set for ${retentionPeriod} seconds`
+    )
+  );
+});
+
+it('should get a retention policy on a bucket', () => {
+  const output = execSync(`node getRetentionPolicy.js ${bucketName}`);
+  assert.match(output, /A retention policy exists!/);
+});
+
+it('should enable default event-based hold on a bucket', () => {
+  const output = execSync(`node enableDefaultEventBasedHold.js ${bucketName}`);
+  assert.match(
+    output,
+    new RegExp(`Default event-based hold was enabled for ${bucketName}.`)
+  );
+});
+
+it('should get default event-based hold on a bucket', () => {
+  const output = execSync(`node getDefaultEventBasedHold.js ${bucketName}`);
+  assert.match(output, /Default event-based hold: true./);
+});
+
+it('should disable default event-based hold on a bucket', () => {
+  const output = execSync(`node disableDefaultEventBasedHold.js ${bucketName}`);
+  assert.match(
+    output,
+    new RegExp(`Default event-based hold was disabled for ${bucketName}`)
+  );
+});
+
+it('should set an event-based hold on a file', async () => {
+  const [metadata] = await bucket.file(fileName).getMetadata();
+  const output = execSync(
+    `node setEventBasedHold.js ${bucketName} ${fileName} ${metadata.metageneration}`
+  );
+  assert.match(output, new RegExp(`Event-based hold was set for ${fileName}`));
+});
+
+it('should release an event-based hold on a file', async () => {
+  const [metadata] = await bucket.file(fileName).getMetadata();
+  const output = execSync(
+    `node releaseEventBasedHold.js ${bucketName} ${fileName} ${metadata.metageneration}`
+  );
+  assert.match(
+    output,
+    new RegExp(`Event-based hold was released for ${fileName}.`)
+  );
+});
+
+it('should remove a retention policy on a bucket', () => {
+  const output = execSync(`node removeRetentionPolicy.js ${bucketName}`);
+  assert.match(
+    output,
+    new RegExp(`Removed bucket ${bucketName} retention policy.`)
+  );
+});
+
+it('should set an temporary hold on a file', async () => {
+  const [metadata] = await bucket.file(fileName).getMetadata();
+  const output = execSync(
+    `node setTemporaryHold.js ${bucketName} ${fileName} ${metadata.metageneration}`
+  );
+  assert.match(output, new RegExp(`Temporary hold was set for ${fileName}.`));
+});
+
+it('should release an temporary hold on a file', async () => {
+  const [metadata] = await bucket.file(fileName).getMetadata();
+  const output = execSync(
+    `node releaseTemporaryHold.js ${bucketName} ${fileName} ${metadata.metageneration}`
+  );
+  assert.match(
+    output,
+    new RegExp(`Temporary hold was released for ${fileName}.`)
+  );
+});
+
+it('should lock a bucket with a retention policy', () => {
+  const retentionPeriod = 5;
+  execSync(`node setRetentionPolicy.js ${bucketName} ${retentionPeriod}`);
+  const output = execSync(`node lockRetentionPolicy.js ${bucketName}`);
+  assert.match(
+    output,
+    new RegExp(`Retention policy for ${bucketName} is now locked`)
+  );
+});