diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 545c8a35058f2..67fcbe81a0af1 100755
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -3083,6 +3083,16 @@ public class CarrierConfigManager {
      */
     public static final String KEY_UNMETERED_NR_NSA_SUB6_BOOL = "unmetered_nr_nsa_sub6_bool";
 
+    /**
+     * Whether NR (non-standalone) should be unmetered when the device is roaming.
+     * If false, then the values for {@link #KEY_UNMETERED_NR_NSA_BOOL},
+     * {@link #KEY_UNMETERED_NR_NSA_MMWAVE_BOOL}, {@link #KEY_UNMETERED_NR_NSA_SUB6_BOOL},
+     * and unmetered {@link SubscriptionPlan} will be ignored.
+     * @hide
+     */
+    public static final String KEY_UNMETERED_NR_NSA_WHEN_ROAMING_BOOL =
+            "unmetered_nr_nsa_when_roaming_bool";
+
     /**
      * Whether NR (standalone) should be unmetered for all frequencies.
      * If either {@link #KEY_UNMETERED_NR_SA_MMWAVE_BOOL} or
@@ -4134,6 +4144,7 @@ public class CarrierConfigManager {
         sDefaults.putBoolean(KEY_UNMETERED_NR_NSA_BOOL, false);
         sDefaults.putBoolean(KEY_UNMETERED_NR_NSA_MMWAVE_BOOL, false);
         sDefaults.putBoolean(KEY_UNMETERED_NR_NSA_SUB6_BOOL, false);
+        sDefaults.putBoolean(KEY_UNMETERED_NR_NSA_WHEN_ROAMING_BOOL, false);
         sDefaults.putBoolean(KEY_UNMETERED_NR_SA_BOOL, false);
         sDefaults.putBoolean(KEY_UNMETERED_NR_SA_MMWAVE_BOOL, false);
         sDefaults.putBoolean(KEY_UNMETERED_NR_SA_SUB6_BOOL, false);