diff --git a/README.md b/README.md
index ca156836066607d140b51282133095c2c3a98c86..b1f2d1c90853af594d99b992e853f8e9ae283e9e 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,10 @@
 # Message Formats (DRAFT)
-Consists of all messages transferred into and out of the Communications Backbone. Message type schemas will be developed once reviewing each vehicle's data and statuses defined by each partner.
+Consists of all messages transferred into and out of the Communications Backbone. Message type schemas will be developed once reviewing each platform's data and statuses defined by each partner.
 
 ## Types of Messages by Software Component
 ### 1/ Autonomy Engine
 #### Transmit
-* mission plan _(sent per vehicle)_
+* mission plan _(sent per platform)_
 * TBD: 
     * Will emergency commands be sent via the autonomy engine (from the GUI) or directly to the C2s?
 
@@ -14,7 +14,7 @@ Consists of all messages transferred into and out of the Communications Backbone
 * decoded ecosub status message
 * decoded reav status message
 * decoded autosub-hover status message
-* decoded ecosub survey data _(from squad 1 vehicles)_
+* decoded ecosub survey data _(from squad 1 platforms)_
 
 ----------------------------------
 
@@ -65,8 +65,8 @@ Consists of all messages transferred into and out of the Communications Backbone
 * encoded autosub status message
 * encoded ecosub survey data
 * TBD: 
-    * are there acknowledgment messages from vehicles?
-    * how are we receiving beacon messages per vehicle?
+    * are there acknowledgment messages from platforms?
+    * how are we receiving beacon messages per platform?
 
 #### Receive
 * compiled ecosub mission plan
diff --git a/__init__.py b/__init__.py
index 22406df62d6971c8d5ba7f5c05edc8f9f702ebdd..2de03b19ceda158e0f790d7af4e655c98c573654 100644
--- a/__init__.py
+++ b/__init__.py
@@ -13,7 +13,7 @@ app = Flask(__name__)
 api = Api(app)
 
 message_types = [
-    "vehicle_status"
+    "platform_status"
 ]  # TODO: Add full range of message types once scoped out
 
 message_header_schema = api.model(
@@ -43,32 +43,32 @@ message_header_schema = api.model(
         "type": fields.String(
             required=True,
             description="Type of message",
-            example="vehicle_status",
+            example="platform_status",
         ),
     },
 )
 
-vehicle_schema = api.model(
-    "VehicleSchema",
+platform_schema = api.model(
+    "PlatformSchema",
     {
-        "vehicle_ID": fields.Integer(
+        "platform_ID": fields.Integer(
             required=True,
-            description="vehicle serial number",
+            description="unique identifier for platform",
             example="ah-1",
         ),
         "serial": fields.Integer(
             required=True,
-            description="vehicle serial number",
+            description="platform serial number",
             example="ah-1",
         ),
         "model": fields.Integer(
             required=True,
-            description="vehicle serial number",
+            description="platform serial number",
             example="ah-1",
         ),
         "active": fields.Boolean(
             required=False,
-            description="Vehicle in mission",
+            description="platform in mission",
             example=True,
         ),
     },
diff --git a/autonomy_configuration.py b/autonomy_configuration.py
index 3cbadf9d9451594e745209e1ed9941596eecbc17..d2fc29d1b56f12d95294b4c952d503b0cd552c31 100644
--- a/autonomy_configuration.py
+++ b/autonomy_configuration.py
@@ -1,8 +1,8 @@
 """
     schemas: configuration sent to Autonomy Engine (i.e. during an emergency,
-    if a vehicle needs to be removed from the mission planning)
+    if a platform needs to be removed from the mission planning)
 """
-from . import api, message_header_schema, vehicle_schema
+from . import api, message_header_schema, platform_schema
 from flask_restx import fields
 
 
@@ -11,27 +11,28 @@ squad_metadata_schema = api.model(
     {
         "squad_ID": fields.Integer(
             required=True,
-            description="vehicle serial number",
+            description="platform serial number",
             example="ah-1",
         ),
-        "no_of_vehicles": fields.Integer(
+        "no_of_platforms": fields.Integer(
             required=True,
-            description="number of vehicle serial number",
+            description="number of platform serial number",
             example="ah-1",
         ),
-        "vehicles": fields.List(
-            fields.Nested(vehicle_schema),
+        "platforms": fields.List(
+            fields.Nested(platform_schema),
             required=True,
-            description="Metadata pf each vehicle",
+            description="Metadata pf each platform",
         ),
         "squad_mission_type": fields.String(
             required=True,
             description="Survey or Detail",
             example="survey",
         ),
-        "squad_execution": fields.Boolean(
+        "squad_state": fields.Boolean(
             required=True,
-            description="True if Squad of survey executed by Autonomy Engine",
+            description="True if given Squad is executing mission type "
+            + "according to the Autonomy Engine plan",
             example=False,
         ),
     },
@@ -39,7 +40,7 @@ squad_metadata_schema = api.model(
 
 constraints_schema = api.model(
     "ConstraintsSchema",
-    # TODO: Should this be per vehicle instead of squad?
+    # TODO: Should this be per platform instead of squad?
     {
         "min_altitude": fields.Float(
             required=True,
diff --git a/examples/autonomy_engine/configuration.jsonc b/examples/autonomy_engine/configuration.jsonc
index 169d86520ecccc0bcd48bc2c61eec8b9fcb33b0c..e7ef312fc1696301b989576300067e8a6b4a903f 100644
--- a/examples/autonomy_engine/configuration.jsonc
+++ b/examples/autonomy_engine/configuration.jsonc
@@ -1,7 +1,7 @@
 //****************************************************************
 // File: config.json  (THIS FILE WILL BE IN JSON FORMAT, NOT JSONC)
 // Description: This file is configured by the respective
-// vehicle's C2 if a vehicle is no longer active or change
+// platform's C2 if a platform is no longer active or change
 // a configured value. 
 //
 // Notes: All comments in this document will be stripped out
@@ -24,24 +24,24 @@
         }
     },
     "survey_team": {
-        "no_of_vehicles": 3, // int
-        "vehicles": [
+        "no_of_platforms": 3, // int
+        "platforms": [
             {
                 "id": 1, // int
                 "platform": "ecosub", // str
-                "vehicle_serial": "eco101", // str
+                "platform_serial": "eco101", // str
                 "active": true // bool
             },
             {
                 "id": 2,
                 "platform": "ecosub", // str
-                "vehicle_serial": "eco-102",  // str
+                "platform_serial": "eco-102",  // str
                 "active": true // bool
             },
             {
                 "id": 3, // int
                 "platform": "ecosub", // str
-                "vehicle_serial": "ecosub3", // str
+                "platform_serial": "ecosub3", // str
                 "active": true // bool
             }
         ],
@@ -51,12 +51,12 @@
     },
     "detail_team": {
         "execute_stage": true, // bool
-        "no_of_vehicles": 1, // int
-        "vehicles": [
+        "no_of_platforms": 1, // int
+        "platforms": [
             {
                 "id": 1, // int
                 "platform": "autosub-hover", // str
-                "vehicle_serial": "ah1", // str
+                "platform_serial": "ah1", // str
                 "active": true // bool
             }
         ],
diff --git a/vehicle_status.py b/platform_status.py
similarity index 65%
rename from vehicle_status.py
rename to platform_status.py
index 9e9cc794775d6266652d41e8acb8c20780b1c3b4..703c401843d891c0fe1a3c8a636ac57c55846eb6 100644
--- a/vehicle_status.py
+++ b/platform_status.py
@@ -1,19 +1,61 @@
 """
-    schema: vehicle-specific decoded status message (DRAFT)
+    schema: platform-specific decoded status message (DRAFT)
 """
-from . import message_header_schema, vehicle_schema, api
+from . import message_header_schema, platform_schema, api
 from flask_restx import fields
 
+# TODO: Discuss nomenclature > platform or vehicle?
 
-vehicle_status_message_schema = api.model(
-    "VehicleStatusMessage",
+gps_schema = api.model(
+    "GPS",
+    {
+        "gps_source": fields.Float(  # TODO: TBD with partners
+            required=False,
+            description="Source of gps position. E.g. Beacon",
+            example="internal",
+        ),
+        "latitude_type": fields.String(
+            required=False,
+            description="",
+            example="",
+        ),
+        "longitude_type": fields.String(
+            required=False,
+            description="",
+            example="",
+        ),
+        "latitude": fields.Float(
+            required=False,
+            description="Latitude in <insert units>",
+            example="",
+        ),
+        "longitude": fields.Float(
+            required=False,
+            description="Longitude in <insert units>",
+            example="",
+        ),
+        "depth": fields.Float(
+            required=False,
+            description="",
+            example="",
+        ),
+        "gps_fix_seconds_ago": fields.Float(
+            required=False,
+            description="",
+            example="",
+        ),
+    },
+)
+
+platform_status_message_schema = api.model(
+    "PlatformStatusMessage",
     {
         "message": fields.Nested(
             message_header_schema,
             required=True,
             description="Message header",
         ),
-        "platform": fields.Nested(vehicle_schema)
+        "platform": fields.Nested(platform_schema),
         "time": fields.String(
             required=True,
             description="Timestamp of message",
@@ -25,12 +67,14 @@ vehicle_status_message_schema = api.model(
             example="",
         ),
         "platform_state": fields.String(
+            # TODO: Define dictionary with potential STATES of each platform
             required=True,
-            description="",
-            example="SAFETY_STOP",
+            description="Current state executed by platform. E.g. "
+            + "STOP, IDLE, ABORT.",
+            example="IDLE",
         ),
         "mission_track_number": fields.Integer(
-            required=True,
+            required=False,
             description=(
                 "Track number - stage in mission (e.g. "
                 + "4 --> Waypoint 3 to Waypoint 4)"
@@ -42,43 +86,13 @@ vehicle_status_message_schema = api.model(
             description="Estimated distance to reach next waypoint",
             example=124.3,
         ),
-        "vehicle_state": fields.String(
-            required=True,
-            description="Current state executed by vehicle. E.g. "
-            + "STOP, IDLE, ABORT.",
-            example="IDLE",
-        ),
         "c2_health_status": fields.String(
-            required=True,
-            description="Health status determined by vehicle's C2 "
-            + "checks on sensors",
+            required=False,
+            description="Health status extracted by respective platform's C2 "
+            + "if any diagnosis available checks on sensors",
             example="Warning",
         ),
-        "gps_source": fields.Float(
-            required=True,
-            description="Source of gps position. E.g. Beacon",
-            example="internal",
-        ),
-        "latitude": fields.Float(
-            required=True,
-            description="Latitude in <insert units>",
-            example="",
-        ),
-        "longitude": fields.Float(
-            required=True,
-            description="Longitude in <insert units>",
-            example="",
-        ),
-        "depth": fields.Float(
-            required=True,
-            description="",
-            example="",
-        ),
-        "gps_fix_seconds_ago": fields.String(
-            required=True,
-            description="",
-            example="",
-        ),
+        "gps_data": fields.Nested(gps_schema),
         "battery_voltage": fields.Float(
             required=True,
             description="Volts",
@@ -107,4 +121,4 @@ vehicle_status_message_schema = api.model(
     },
 )
 
-# TBD: Do we append beacon positions with vehicle positions?
+# TBD: Do we append beacon positions with platform positions?