The US states, not the national government, control vehicle ownership in the United States.

These are the presence requirements to own a vehicle in this state:

When you register a vehicle - apply for ownership and permission to drive it on public roads - two costs are due:

These are the costs to own a vehicle in this state.

Sales tax is due where a vehicle is owned, not where it is bought - so owning a vehicle in Montana can save you hundreds (or thousands) of dollars.

4.3% of the vehicle's value

$96

In order to register a vehicle (or renew a registration in this state, the vehicle must meet the following inspection requirements:

Emissions inspection required in 48 of 100 counties. No sticker or decal: inspection outcomes are stored in electronic database. Vehicles less 3 years old or less with 70,000 miles or less are exempt. Safety inspection required for cars 35 years or less in age