diff --git a/radio/1.6/IRadio.hal b/radio/1.6/IRadio.hal
index 2e64008..85e8cad 100644
--- a/radio/1.6/IRadio.hal
+++ b/radio/1.6/IRadio.hal
@@ -365,4 +365,22 @@
      * Response callback is IRadioResponse.getSystemSelectionChannelsResponse()
      */
     oneway getSystemSelectionChannels(int32_t serial);
+
+    /**
+     * Request current voice registration state.
+     *
+     * @param serial Serial number of request.
+     *
+     * Response function is IRadioResponse.getVoiceRegistrationStateResponse_1_6()
+     */
+    oneway getVoiceRegistrationState_1_6(int32_t serial);
+
+    /**
+     * Request current data registration state.
+     *
+     * @param serial Serial number of request.
+     *
+     * Response function is IRadioResponse.getDataRegistrationStateResponse_1_6()
+     */
+    oneway getDataRegistrationState_1_6(int32_t serial);
 };
diff --git a/radio/1.6/IRadioResponse.hal b/radio/1.6/IRadioResponse.hal
index 36e3ee4..29b8e9d 100644
--- a/radio/1.6/IRadioResponse.hal
+++ b/radio/1.6/IRadioResponse.hal
@@ -19,6 +19,7 @@
 import @1.0::SendSmsResult;
 import @1.6::RadioResponseInfo;
 import @1.5::IRadioResponse;
+import @1.6::RegStateResult;
 import @1.6::SetupDataCallResult;
 
 /**
@@ -327,4 +328,31 @@
      *   RadioError:INVALID_ARGUMENTS
      */
     oneway getSystemSelectionChannelsResponse(RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     * @param voiceRegResponse Current Voice registration response as defined by RegStateResult
+     *        in types.hal
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INTERNAL_ERR
+     */
+    oneway getVoiceRegistrationStateResponse_1_6(RadioResponseInfo info,
+            RegStateResult voiceRegResponse);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     * @param dataRegResponse Current Data registration response as defined by RegStateResult in
+     *        types.hal
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:NOT_PROVISIONED
+     */
+    oneway getDataRegistrationStateResponse_1_6(RadioResponseInfo info,
+            RegStateResult dataRegResponse);
 };
diff --git a/radio/1.6/types.hal b/radio/1.6/types.hal
index 556d8a3..cfa2cde 100644
--- a/radio/1.6/types.hal
+++ b/radio/1.6/types.hal
@@ -18,10 +18,17 @@
 
 import @1.0::RadioError;
 import @1.0::RadioResponseType;
+import @1.0::RegState;
 import @1.4::DataCallFailCause;
 import @1.4::DataConnActiveStatus;
 import @1.4::PdpProtocolType;
+import @1.4::RadioTechnology;
+import @1.5::CellIdentity;
 import @1.5::LinkAddress;
+import @1.5::RegStateResult.AccessTechnologySpecificInfo.Cdma2000RegistrationInfo;
+import @1.5::RegStateResult.AccessTechnologySpecificInfo.EutranRegistrationInfo;
+import @1.5::RegistrationFailCause;
+import @1.5::SetupDataCallResult;
 
 import android.hidl.safe_union@1.0::Monostate;
 
@@ -417,3 +424,140 @@
      */
     HOLD = 3
 };
+
+/**
+ * Defines the values for VoPS indicator of NR as per 3gpp spec 24.501 sec 9.10.3.5
+ */
+enum VopsIndicator : uint8_t {
+    /** IMS voice over PS session not supported */
+    VOPS_NOT_SUPPORTED = 0,
+    /** IMS voice over PS session supported over 3GPP access */
+    VOPS_OVER_3GPP = 1,
+    /** IMS voice over PS session supported over non-3GPP access */
+    VOPS_OVER_NON_3GPP = 2,
+};
+
+/**
+ * Defines the values for emergency service indicator of NR
+ * as per 3gpp spec 24.501 sec 9.10.3.5
+ */
+enum EmcIndicator : uint8_t {
+    /** Emergency services not supported */
+    EMC_NOT_SUPPORTED = 0,
+    /** Emergency services supported in NR connected to 5GCN only */
+    EMC_NR_CONNECTED_TO_5GCN = 1,
+    /** Emergency services supported in E-UTRA connected to 5GCN only */
+    EMC_EUTRA_CONNECTED_TO_5GCN = 2,
+    /** Emergency services supported in NR connected to 5GCN and E-UTRA connected to 5GCN */
+    EMC_BOTH_NR_EUTRA_CONNECTED_TO_5GCN = 3
+};
+
+/**
+ * Defines the values for emergency service fallback indicator of NR
+ * as per 3gpp spec 24.501 sec 9.10.3.5
+ */
+enum EmfIndicator : uint8_t {
+    /** Emergency services fallback not supported */
+    EMF_NOT_SUPPORTED = 0,
+    /** Emergency services fallback supported in NR connected to 5GCN only */
+    EMF_NR_CONNECTED_TO_5GCN = 1,
+    /** Emergency services fallback supported in E-UTRA connected to 5GCN only */
+    EMF_EUTRA_CONNECTED_TO_5GCN = 2,
+    /**
+     * Emergency services fallback supported in NR connected to 5GCN and E-UTRA
+     * connected to 5GCN.
+     */
+    EMF_BOTH_NR_EUTRA_CONNECTED_TO_5GCN = 3
+};
+
+/**
+ * Type to define the NR specific network capabilities for voice over PS including
+ * emergency and normal voice calls.
+ */
+struct NrVopsInfo {
+    /**
+     * This indicates if the camped network supports VoNR services, and what kind of services
+     * it supports. This information is received from NR network during NR NAS registration
+     * procedure through NR REGISTRATION ACCEPT.
+     * Refer 3GPP 24.501 EPS 5GS network feature support -> IMS VoPS
+     */
+    VopsIndicator vopsSupported;
+
+    /**
+     * This indicates if the camped network supports VoNR emergency service. This information
+     * is received from NR network through two sources:
+     * a. During NR NAS registration procedure through NR REGISTRATION ACCEPT.
+     *    Refer 3GPP 24.501 EPS 5GS network feature support -> EMC
+     * b. In case the device is not registered on the network.
+     *    Refer 3GPP 38.331 SIB1 : ims-EmergencySupport
+     *    If device is registered on NR, then this field indicates whether the cell
+     *    supports IMS emergency bearer services for UEs in limited service mode.
+     */
+    EmcIndicator emcSupported;
+
+    /**
+     * This indicates if the camped network supports VoNR emergency service fallback. This
+     * information is received from NR network during NR NAS registration procedure through
+     * NR REGISTRATION ACCEPT.
+     * Refer 3GPP 24.501 EPS 5GS network feature support -> EMF
+     */
+    EmfIndicator emfSupported;
+};
+
+/**
+ * Overwritten from @1.5::RegStateResult to 1.6 to support NrRegistrationInfo
+ * version.
+ */
+struct RegStateResult {
+    /**
+     * Registration state
+     *
+     * If the RAT is indicated as a GERAN, UTRAN, or CDMA2000 technology, this value reports
+     * registration in the Circuit-switched domain.
+     * If the RAT is indicated as an EUTRAN, NGRAN, or another technology that does not support
+     * circuit-switched services, this value reports registration in the Packet-switched domain.
+     */
+    RegState regState;
+
+    /**
+     * Indicates the available voice radio technology, valid values as
+     * defined by RadioTechnology.
+     */
+    RadioTechnology rat;
+
+    /**
+     * Cause code reported by the network in case registration fails. This will be a mobility
+     * management cause code defined for MM, GMM, MME or equivalent as appropriate for the RAT.
+     */
+    RegistrationFailCause reasonForDenial;
+
+    /** CellIdentity */
+    CellIdentity cellIdentity;
+
+    /**
+     * The most-recent PLMN-ID upon which the UE registered (or attempted to register if a failure
+     * is reported in the reasonForDenial field). This PLMN shall be in standard format consisting
+     * of a 3 digit MCC concatenated with a 2 or 3 digit MNC.
+     */
+    string registeredPlmn;
+
+    /**
+     * Access-technology-specific registration information, such as for CDMA2000.
+     */
+    safe_union AccessTechnologySpecificInfo {
+        Monostate noinit;
+
+        Cdma2000RegistrationInfo cdmaInfo;
+
+        EutranRegistrationInfo eutranInfo;
+
+        struct NgranRegistrationInfo {
+            /**
+             * Network capabilities for voice over PS services. This info is valid only on NR
+             * network and must be present when the device is camped on NR. VopsInfo must be
+             * empty when the device is not camped on NR.
+             */
+            NrVopsInfo nrVopsInfo;
+        } ngranInfo;
+    } accessTechnologySpecificInfo;
+};
diff --git a/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h b/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h
index 85be903..2a442e7 100644
--- a/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h
+++ b/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h
@@ -798,6 +798,14 @@
 
     Return<void> getSystemSelectionChannelsResponse(
             const ::android::hardware::radio::V1_6::RadioResponseInfo& info);
+
+    Return<void> getVoiceRegistrationStateResponse_1_6(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
+            const ::android::hardware::radio::V1_6::RegStateResult& regResponse);
+
+    Return<void> getDataRegistrationStateResponse_1_6(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
+            const ::android::hardware::radio::V1_6::RegStateResult& regResponse);
 };
 
 /* Callback class for radio indication */
diff --git a/radio/1.6/vts/functional/radio_response.cpp b/radio/1.6/vts/functional/radio_response.cpp
index 7da675e..52d3486 100644
--- a/radio/1.6/vts/functional/radio_response.cpp
+++ b/radio/1.6/vts/functional/radio_response.cpp
@@ -1170,3 +1170,19 @@
     parent_v1_6.notify(info.serial);
     return Void();
 }
+
+Return<void> RadioResponse_v1_6::getVoiceRegistrationStateResponse_1_6(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
+        const ::android::hardware::radio::V1_6::RegStateResult& /*regResponse*/) {
+    rspInfo = info;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}
+
+Return<void> RadioResponse_v1_6::getDataRegistrationStateResponse_1_6(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
+        const ::android::hardware::radio::V1_6::RegStateResult& /*regResponse*/) {
+    rspInfo = info;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}