diff --git a/app/src/main/java/org/opencord/olt/cli/UniTagAddCommand.java b/app/src/main/java/org/opencord/olt/cli/UniTagAddCommand.java
new file mode 100644
index 0000000..9ea5439
--- /dev/null
+++ b/app/src/main/java/org/opencord/olt/cli/UniTagAddCommand.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2016-present Open Networking Foundation
+ *
+ * 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.
+ */
+
+package org.opencord.olt.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.apache.karaf.shell.commands.Option;
+import org.onlab.packet.VlanId;
+import org.onosproject.cli.AbstractShellCommand;
+import org.opencord.olt.AccessDeviceService;
+import org.opencord.olt.AccessSubscriberId;
+
+import java.util.Optional;
+
+/**
+ * Adds a subscriber uni tag.
+ */
+@Command(scope = "onos", name = "volt-add-subscriber-unitag",
+        description = "Adds a uni tag to an access device")
+public class UniTagAddCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "portName", description = "Port name",
+            required = true, multiValued = false)
+    private String strPortName = null;
+
+    @Option(name = "--cTag", description = "Inner vlan id",
+            required = false, multiValued = false)
+    private String strCtag = null;
+
+    @Option(name = "--sTag", description = "Outer vlan id",
+            required = false, multiValued = false)
+    private String strStag = null;
+
+    @Option(name = "--tpId", description = "Technology profile id",
+            required = false, multiValued = false)
+    private String strTpId = null;
+
+    @Override
+    protected void execute() {
+
+        AccessDeviceService service = AbstractShellCommand.get(AccessDeviceService.class);
+        AccessSubscriberId portName = new AccessSubscriberId(strPortName);
+
+        Optional<VlanId> cTag = strCtag == null ? Optional.empty() : Optional.of(VlanId.vlanId(strCtag));
+        Optional<VlanId> sTag = strStag == null ? Optional.empty() : Optional.of(VlanId.vlanId(strStag));
+        Optional<Integer> tpId = strTpId == null ? Optional.empty() : Optional.of(Integer.parseInt(strTpId));
+        service.provisionSubscriber(portName, sTag, cTag, tpId);
+    }
+}