I see, for anyone else here is the definition from the HTA
“highway” includes a common and public highway, street, avenue, parkway, driveway, square, place, bridge, viaduct or trestle, any part of which is intended for or used by the general public for the passage of vehicles and includes the area between the lateral property lines thereof; (“voie publique”)
There is some movement, but it isn’t nearly enough.
https://code.mil/