diff --git a/gnss/1.0/default/GnssNavigationMessage.cpp b/gnss/1.0/default/GnssNavigationMessage.cpp
new file mode 100644
index 0000000..edae938
--- /dev/null
+++ b/gnss/1.0/default/GnssNavigationMessage.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "GnssHAL_GnssNavigationMessageInterface"
+
+#include "GnssNavigationMessage.h"
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V1_0 {
+namespace implementation {
+
+sp<IGnssNavigationMessageCallback> GnssNavigationMessage::sGnssNavigationMsgCbIface = nullptr;
+
+GpsNavigationMessageCallbacks GnssNavigationMessage::sGnssNavigationMessageCb = {
+    .size = sizeof(GpsNavigationMessageCallbacks),
+    .navigation_message_callback = nullptr,
+    .gnss_navigation_message_callback = gnssNavigationMessageCb
+};
+
+GnssNavigationMessage::GnssNavigationMessage(
+        const GpsNavigationMessageInterface* gpsNavigationMessageIface) :
+    mGnssNavigationMessageIface(gpsNavigationMessageIface) {}
+
+void GnssNavigationMessage::gnssNavigationMessageCb(LegacyGnssNavigationMessage* message) {
+    if (sGnssNavigationMsgCbIface == nullptr) {
+        ALOGE("%s: GnssNavigation Message Callback Interface configured incorrectly", __func__);
+        return;
+    }
+
+    if (message == nullptr) {
+        ALOGE("%s, received invalid GnssNavigationMessage from GNSS HAL", __func__);
+        return;
+    }
+
+    IGnssNavigationMessageCallback::GnssNavigationMessage navigationMsg;
+
+    navigationMsg.svid = message->svid;
+    navigationMsg.type =
+            static_cast<IGnssNavigationMessageCallback::GnssNavigationMessageType>(message->type);
+    navigationMsg.status =
+            static_cast<IGnssNavigationMessageCallback::NavigationMessageStatus>(message->status);
+    navigationMsg.messageId = message->message_id;
+    navigationMsg.submessageId = message->submessage_id;
+    navigationMsg.data.setToExternal(message->data, message->data_length);
+
+    sGnssNavigationMsgCbIface->gnssNavigationMessageCb(navigationMsg);
+}
+
+// Methods from ::android::hardware::gnss::V1_0::IGnssNavigationMessage follow.
+Return<GnssNavigationMessage::GnssNavigationMessageStatus> GnssNavigationMessage::setCallback(
+        const sp<IGnssNavigationMessageCallback>& callback)  {
+    if (mGnssNavigationMessageIface == nullptr) {
+        ALOGE("%s: GnssNavigationMessage not available", __func__);
+        return GnssNavigationMessageStatus::ERROR_GENERIC;
+    }
+
+    sGnssNavigationMsgCbIface = callback;
+
+    return static_cast<GnssNavigationMessage::GnssNavigationMessageStatus>(
+            mGnssNavigationMessageIface->init(&sGnssNavigationMessageCb));
+}
+
+Return<void> GnssNavigationMessage::close()  {
+    if (mGnssNavigationMessageIface == nullptr) {
+        ALOGE("%s: GnssNavigationMessage not available", __func__);
+    } else {
+        mGnssNavigationMessageIface->close();
+    }
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android