Vehicles with a Pennsylvania registration and an out-of-state address are required to?

Vehicles registered in Pennsylvania that carry an out-of-state address are not subject to emissions testing. This is because emissions testing requirements in Pennsylvania are generally tied to the vehicle's registration and the location of its primary use. If a vehicle is registered in Pennsylvania, but the owner resides out of state, the vehicle is exempt from the typical emissions inspection processes that apply to Pennsylvania residents.

Emissions testing is designed to ensure that vehicles registered and primarily operated in certain regions comply with state emissions standards. However, if the vehicle is not primarily operated in Pennsylvania, it does not fall under the same regulations, which is why it is not required to undergo emissions testing.

The other options do not align with the specific requirements set for vehicles in this scenario, as they imply obligations that do not apply to vehicles registered in Pennsylvania while having an out-of-state address.