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 Kansas, residents are required to title and register their vehicles with the Kansas Department of Revenue's Division of Vehicles. New residents must title and register their vehicles within 90 days of establishing residency. Kansas does not have a statewide vehicle safety inspection requirement for private vehicles. However, all vehicles are subject to a VIN (Vehicle Identification Number) inspection upon initial registration in Kansas, especially if the vehicle is titled out of state. This inspection is to verify the identity of the vehicle and is not a comprehensive safety inspection. Regarding emissions testing, Kansas does not require emissions tests for vehicles as part of the registration process, regardless of the county of residence. This means that residents of more densely populated counties are not subject to different requirements than residents of other counties in terms of emissions testing.