diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 039c6b154c15f..84d793bf98b88 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -12330,6 +12330,7 @@ package android.telephony.ims.stub {
     field public static final int REGISTRATION_TECH_IWLAN = 1; // 0x1
     field public static final int REGISTRATION_TECH_LTE = 0; // 0x0
     field public static final int REGISTRATION_TECH_NONE = -1; // 0xffffffff
+    field public static final int REGISTRATION_TECH_NR = 3; // 0x3
   }
 
   public class ImsSmsImplBase {
diff --git a/telephony/java/android/telephony/ims/ImsMmTelManager.java b/telephony/java/android/telephony/ims/ImsMmTelManager.java
index d1a893f61e000..740332708dbce 100644
--- a/telephony/java/android/telephony/ims/ImsMmTelManager.java
+++ b/telephony/java/android/telephony/ims/ImsMmTelManager.java
@@ -713,15 +713,8 @@ public class ImsMmTelManager implements RegistrationManager {
      * @see android.telephony.CarrierConfigManager#KEY_CARRIER_VT_AVAILABLE_BOOL
      * @see android.telephony.CarrierConfigManager#KEY_CARRIER_IMS_GBA_REQUIRED_BOOL
      * @see #isAvailable(int, int)
-     *
-     * @param imsRegTech The IMS registration technology, can be one of the following:
-     *         {@link ImsRegistrationImplBase#REGISTRATION_TECH_LTE},
-     *         {@link ImsRegistrationImplBase#REGISTRATION_TECH_IWLAN}
-     * @param capability The IMS MmTel capability to query, can be one of the following:
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VOICE},
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VIDEO},
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_UT},
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_SMS}
+     * @param imsRegTech The IMS registration technology.
+     * @param capability The IMS MmTel capability to query.
      * @return {@code true} if the MmTel IMS capability is capable for this subscription, false
      *         otherwise.
      * @hide
@@ -748,14 +741,8 @@ public class ImsMmTelManager implements RegistrationManager {
      *
      * @see #isCapable(int, int)
      *
-     * @param imsRegTech The IMS registration technology, can be one of the following:
-     *         {@link ImsRegistrationImplBase#REGISTRATION_TECH_LTE},
-     *         {@link ImsRegistrationImplBase#REGISTRATION_TECH_IWLAN}
-     * @param capability The IMS MmTel capability to query, can be one of the following:
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VOICE},
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VIDEO},
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_UT},
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_SMS}
+     * @param imsRegTech The IMS registration technology.
+     * @param capability The IMS MmTel capability to query.
      * @return {@code true} if the MmTel IMS capability is available for this subscription, false
      *         otherwise.
      * @hide
diff --git a/telephony/java/android/telephony/ims/RegistrationManager.java b/telephony/java/android/telephony/ims/RegistrationManager.java
index c49121f4dc5d1..4713b7660e3ac 100644
--- a/telephony/java/android/telephony/ims/RegistrationManager.java
+++ b/telephony/java/android/telephony/ims/RegistrationManager.java
@@ -82,6 +82,8 @@ public interface RegistrationManager {
                         AccessNetworkConstants.TRANSPORT_TYPE_INVALID);
                 put(ImsRegistrationImplBase.REGISTRATION_TECH_LTE,
                         AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+                put(ImsRegistrationImplBase.REGISTRATION_TECH_NR,
+                        AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
                 put(ImsRegistrationImplBase.REGISTRATION_TECH_IWLAN,
                         AccessNetworkConstants.TRANSPORT_TYPE_WLAN);
             }};
diff --git a/telephony/java/android/telephony/ims/stub/ImsRegistrationImplBase.java b/telephony/java/android/telephony/ims/stub/ImsRegistrationImplBase.java
index 23032f0c4d383..35324a3c79754 100644
--- a/telephony/java/android/telephony/ims/stub/ImsRegistrationImplBase.java
+++ b/telephony/java/android/telephony/ims/stub/ImsRegistrationImplBase.java
@@ -56,7 +56,8 @@ public class ImsRegistrationImplBase {
     @IntDef(value = {
                     REGISTRATION_TECH_NONE,
                     REGISTRATION_TECH_LTE,
-                    REGISTRATION_TECH_IWLAN
+                    REGISTRATION_TECH_IWLAN,
+                    REGISTRATION_TECH_NR
             })
     @Retention(RetentionPolicy.SOURCE)
     public @interface ImsRegistrationTech {}
@@ -65,13 +66,18 @@ public class ImsRegistrationImplBase {
      */
     public static final int REGISTRATION_TECH_NONE = -1;
     /**
-     * IMS is registered to IMS via LTE.
+     * This ImsService is registered to IMS via LTE.
      */
     public static final int REGISTRATION_TECH_LTE = 0;
     /**
-     * IMS is registered to IMS via IWLAN.
+     * This ImsService is registered to IMS via IWLAN.
      */
     public static final int REGISTRATION_TECH_IWLAN = 1;
+    // REGISTRATION_TECH = 2 omitted purposefully.
+    /**
+     * This ImsService is registered to IMS via NR.
+     */
+    public static final int REGISTRATION_TECH_NR = 3;
 
     // Registration states, used to notify new ImsRegistrationImplBase#Callbacks of the current
     // state.