Crosstatelaws is a new project from Ironwood Apps. Travelers already know that rules change when they cross a border. The hard part is seeing how they change without opening twenty tabs.

This site puts an interactive map of all 50 states first. Solo a single law layer and the map legend becomes unique to that topic — for seatbelts that includes who must buckle and whether riding in a pickup bed is restricted. Select the states on your route to get a difference breakdown, then open each state for quoted provisions, dates, and numbered footnotes with sources.

We removed near-universal look-alike topics that did not help travelers spot real differences, and we keep refining the remaining layers on a weekly update cycle.

Crosstatelaws is not a law firm and does not provide legal advice. Read the legal disclaimer before relying on anything here.

Built to make state-line differences obvious