Most states have titling and registration laws that require residents to title and register their cars in the state—and for new residents of the state to do so within some period of time, such as 30 days. Some states require titled cars to pass a comprehensive safety inspection. And some states also require cars owned by residents of certain counties to pass an emissions test/inspection designed to improve air quality in more densely populated counties.
In Minnesota, residents are required to title and register their vehicles with the Minnesota Driver and Vehicle Services (DVS), which is a division of the Minnesota Department of Public Safety. New residents must register their vehicles within 60 days of moving to the state. Minnesota does not require a state-wide vehicle safety inspection for most vehicles, but commercial vehicles are subject to safety inspections. As for emissions testing, Minnesota does not currently require emissions tests for passenger vehicles. The state had a program called 'IM 240' which was discontinued in 1999. However, regulations can vary, and it's important for vehicle owners to check for any county-specific requirements or updates to state laws.