diff --git a/wifi/1.5/vts/functional/Android.bp b/wifi/1.5/vts/functional/Android.bp
index 764d14d..d906d06 100644
--- a/wifi/1.5/vts/functional/Android.bp
+++ b/wifi/1.5/vts/functional/Android.bp
@@ -83,6 +83,7 @@
         "android.hardware.wifi@1.3",
         "android.hardware.wifi@1.4",
         "android.hardware.wifi@1.5",
+        "android.hardware.wifi@1.6",
         "libwifi-system-iface",
     ],
     test_suites: [
diff --git a/wifi/1.5/vts/functional/wifi_nan_iface_hidl_test.cpp b/wifi/1.5/vts/functional/wifi_nan_iface_hidl_test.cpp
index 803d39d..8474d78 100644
--- a/wifi/1.5/vts/functional/wifi_nan_iface_hidl_test.cpp
+++ b/wifi/1.5/vts/functional/wifi_nan_iface_hidl_test.cpp
@@ -20,6 +20,7 @@
 #include <android/hardware/wifi/1.5/IWifi.h>
 #include <android/hardware/wifi/1.5/IWifiNanIface.h>
 #include <android/hardware/wifi/1.5/IWifiNanIfaceEventCallback.h>
+#include <android/hardware/wifi/1.6/IWifiNanIface.h>
 #include <gtest/gtest.h>
 #include <hidl/GtestPrinter.h>
 #include <hidl/ServiceManagement.h>
@@ -34,7 +35,6 @@
 using namespace ::android::hardware::wifi::V1_2;
 using namespace ::android::hardware::wifi::V1_4;
 using namespace ::android::hardware::wifi::V1_5;
-
 using ::android::sp;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
@@ -586,6 +586,11 @@
  * getCapabilitiesRequest: validate that returns capabilities.
  */
 TEST_P(WifiNanIfaceHidlTest, getCapabilitiesRequest_1_5) {
+    sp<::android::hardware::wifi::V1_6::IWifiNanIface> iface_converted =
+            ::android::hardware::wifi::V1_6::IWifiNanIface::castFrom(iwifiNanIface);
+    if (iface_converted != nullptr) {
+        return;
+    }
     uint16_t inputCmdId = 10;
     callbackType = INVALID;
     const auto& halStatus =
diff --git a/wifi/1.6/vts/functional/wifi_nan_iface_hidl_test.cpp b/wifi/1.6/vts/functional/wifi_nan_iface_hidl_test.cpp
index bf9e230..46a1314 100644
--- a/wifi/1.6/vts/functional/wifi_nan_iface_hidl_test.cpp
+++ b/wifi/1.6/vts/functional/wifi_nan_iface_hidl_test.cpp
@@ -604,6 +604,92 @@
     }
 }
 
+/*
+ * notifyCapabilitiesResponse_1_6: validate that returns capabilities.
+ */
+TEST_P(WifiNanIfaceHidlTest, notifyCapabilitiesResponse_1_6) {
+    uint16_t inputCmdId = 10;
+    callbackType = INVALID;
+    const auto& halStatus = HIDL_INVOKE(iwifiNanIface, getCapabilitiesRequest_1_5, inputCmdId).code;
+    ASSERT_EQ(WifiStatusCode::SUCCESS, halStatus);
+    // wait for a callback
+    ASSERT_EQ(std::cv_status::no_timeout, wait(NOTIFY_CAPABILITIES_RESPONSE_1_6));
+    ASSERT_EQ(NOTIFY_CAPABILITIES_RESPONSE_1_6, callbackType);
+    ASSERT_EQ(id, inputCmdId);
+
+    // check for reasonable capability values
+    EXPECT_GT(capabilities_1_6.maxConcurrentClusters, (unsigned int)0);
+    EXPECT_GT(capabilities_1_6.maxPublishes, (unsigned int)0);
+    EXPECT_GT(capabilities_1_6.maxSubscribes, (unsigned int)0);
+    EXPECT_EQ(capabilities_1_6.maxServiceNameLen, (unsigned int)255);
+    EXPECT_EQ(capabilities_1_6.maxMatchFilterLen, (unsigned int)255);
+    EXPECT_GT(capabilities_1_6.maxTotalMatchFilterLen, (unsigned int)255);
+    EXPECT_EQ(capabilities_1_6.maxServiceSpecificInfoLen, (unsigned int)255);
+    EXPECT_GE(capabilities_1_6.maxExtendedServiceSpecificInfoLen, (unsigned int)255);
+    EXPECT_GT(capabilities_1_6.maxNdiInterfaces, (unsigned int)0);
+    EXPECT_GT(capabilities_1_6.maxNdpSessions, (unsigned int)0);
+    EXPECT_GT(capabilities_1_6.maxAppInfoLen, (unsigned int)0);
+    EXPECT_GT(capabilities_1_6.maxQueuedTransmitFollowupMsgs, (unsigned int)0);
+    EXPECT_GT(capabilities_1_6.maxSubscribeInterfaceAddresses, (unsigned int)0);
+    EXPECT_NE(capabilities_1_6.supportedCipherSuites, (unsigned int)0);
+    EXPECT_TRUE(capabilities_1_6.instantCommunicationModeSupportFlag ||
+                !capabilities_1_6.instantCommunicationModeSupportFlag);
+}
+
+/*
+ * startPublishRequest_1_6InvalidArgs: validate that fails with invalid arguments
+ */
+TEST_P(WifiNanIfaceHidlTest, startPublishRequest_1_6InvalidArgs) {
+    uint16_t inputCmdId = 10;
+    callbackType = INVALID;
+    ::android::hardware::wifi::V1_6::NanPublishRequest nanPublishRequest = {};
+    const auto& halStatus =
+            HIDL_INVOKE(iwifiNanIface, startPublishRequest_1_6, inputCmdId, nanPublishRequest);
+
+    if (halStatus.code != WifiStatusCode::ERROR_NOT_SUPPORTED) {
+        ASSERT_EQ(WifiStatusCode::SUCCESS, halStatus.code);
+
+        // wait for a callback
+        ASSERT_EQ(std::cv_status::no_timeout, wait(NOTIFY_START_PUBLISH_RESPONSE));
+        ASSERT_EQ(NOTIFY_START_PUBLISH_RESPONSE, callbackType);
+        ASSERT_EQ(id, inputCmdId);
+        ASSERT_EQ(status.status, NanStatusType::INTERNAL_FAILURE);
+    }
+}
+
+/*
+ * respondToDataPathIndicationRequest_1_6InvalidArgs: validate that fails with invalid arguments
+ */
+TEST_P(WifiNanIfaceHidlTest, respondToDataPathIndicationRequest_1_6ShimInvalidArgs) {
+    uint16_t inputCmdId = 10;
+    callbackType = INVALID;
+    ::android::hardware::wifi::V1_6::NanRespondToDataPathIndicationRequest
+            nanRespondToDataPathIndicationRequest = {};
+    nanRespondToDataPathIndicationRequest.ifaceName = "AwareinterfaceNameTooLong";
+    const auto& halStatus = HIDL_INVOKE(iwifiNanIface, respondToDataPathIndicationRequest_1_6,
+                                        inputCmdId, nanRespondToDataPathIndicationRequest);
+
+    if (halStatus.code != WifiStatusCode::ERROR_NOT_SUPPORTED) {
+        ASSERT_EQ(WifiStatusCode::ERROR_INVALID_ARGS, halStatus.code);
+    }
+}
+
+/*
+ * initiateDataPathRequest_1_6InvalidArgs: validate that fails with invalid arguments
+ */
+TEST_P(WifiNanIfaceHidlTest, initiateDataPathRequest_1_6ShimInvalidArgs) {
+    uint16_t inputCmdId = 10;
+    callbackType = INVALID;
+    ::android::hardware::wifi::V1_6::NanInitiateDataPathRequest nanInitiateDataPathRequest = {};
+    nanInitiateDataPathRequest.ifaceName = "AwareinterfaceNameTooLong";
+    const auto& halStatus = HIDL_INVOKE(iwifiNanIface, initiateDataPathRequest_1_6, inputCmdId,
+                                        nanInitiateDataPathRequest);
+
+    if (halStatus.code != WifiStatusCode::ERROR_NOT_SUPPORTED) {
+        ASSERT_EQ(WifiStatusCode::ERROR_INVALID_ARGS, halStatus.code);
+    }
+}
+
 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(WifiNanIfaceHidlTest);
 INSTANTIATE_TEST_SUITE_P(PerInstance, WifiNanIfaceHidlTest,
                          testing::ValuesIn(android::hardware::getAllHalInstanceNames(