diff --git a/radio/1.6/IRadioResponse.hal b/radio/1.6/IRadioResponse.hal
index d65c6d0..883711c 100644
--- a/radio/1.6/IRadioResponse.hal
+++ b/radio/1.6/IRadioResponse.hal
@@ -342,6 +342,7 @@
      *  RadioError:RADIO_NOT_AVAILABLE
      *  RadioError:MODEM_ERR
      *  RadioError:INVALID_ARGUMENTS
+     *  RadioError:REQUEST_NOT_SUPPORTED
      */
     oneway setDataThrottlingResponse(RadioResponseInfo info);
 
diff --git a/radio/1.6/vts/functional/radio_hidl_hal_api.cpp b/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
index 91d98cb..7fde18e 100644
--- a/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
@@ -420,13 +420,18 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    ASSERT_TRUE(
-            CheckAnyOfErrors(radioRsp_v1_6->rspInfo.error,
-                             {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
-                              ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
-                              ::android::hardware::radio::V1_6::RadioError::NONE,
-                              ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
-
+    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo.error,
+                {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
+    } else {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo.error,
+                {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
+                 ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
+                 ::android::hardware::radio::V1_6::RadioError::NONE,
+                 ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
+    }
     serial = GetRandomSerialNumber();
 
     res = radio_v1_6->setDataThrottling(serial, DataThrottlingAction::THROTTLE_ANCHOR_CARRIER,
@@ -435,13 +440,18 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    ASSERT_TRUE(
-            CheckAnyOfErrors(radioRsp_v1_6->rspInfo.error,
-                             {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
-                              ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
-                              ::android::hardware::radio::V1_6::RadioError::NONE,
-                              ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
-
+    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo.error,
+                {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
+    } else {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo.error,
+                {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
+                 ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
+                 ::android::hardware::radio::V1_6::RadioError::NONE,
+                 ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
+    }
     serial = GetRandomSerialNumber();
 
     res = radio_v1_6->setDataThrottling(serial, DataThrottlingAction::HOLD, 60000);
@@ -450,13 +460,18 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    ASSERT_TRUE(
-            CheckAnyOfErrors(radioRsp_v1_6->rspInfo.error,
-                             {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
-                              ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
-                              ::android::hardware::radio::V1_6::RadioError::NONE,
-                              ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
-
+    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo.error,
+                {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
+    } else {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo.error,
+                {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
+                 ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
+                 ::android::hardware::radio::V1_6::RadioError::NONE,
+                 ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
+    }
     serial = GetRandomSerialNumber();
 
     res = radio_v1_6->setDataThrottling(serial, DataThrottlingAction::NO_DATA_THROTTLING, 60000);
@@ -464,12 +479,18 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    ASSERT_TRUE(
-            CheckAnyOfErrors(radioRsp_v1_6->rspInfo.error,
-                             {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
-                              ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
-                              ::android::hardware::radio::V1_6::RadioError::NONE,
-                              ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
+    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo.error,
+                {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
+    } else {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo.error,
+                {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
+                 ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
+                 ::android::hardware::radio::V1_6::RadioError::NONE,
+                 ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
+    }
 }
 
 /*
diff --git a/radio/config/1.3/types.hal b/radio/config/1.3/types.hal
index 117abf3..2b6c9f0 100644
--- a/radio/config/1.3/types.hal
+++ b/radio/config/1.3/types.hal
@@ -31,6 +31,8 @@
    * <li> calling android.hardware.radio@1.6::IRadio.setNrDualConnectivityState
    * or querying android.hardware.radio@1.6::IRadio.isNrDualConnectivityEnabled
    * </li>
+   * <li>Requesting android.hardware.radio@1.6::IRadio.setDataThrottling()
+   * </li>
    * </ul>
    */
   bool modemReducedFeatureSet1;