They have to tell you, and they do, but people are lazy, and they don't make it easy

motor vehicle https://www.law.cornell.edu/definitions/uscode.php?width=840&height=800&iframe=true&def_id=18-USC-1582046849-1388884878&term_occur=2&term_src

non citizen https://travel.state.gov/content/travel/en/legal/travel-legal-considerations/us-citizenship/Certificates-Non-Citizen-Nationality.html