I live in Fairfax County, VA. My car emissions are checked every 2 years. MC exhaust is not checked and is not a requirement. The AI was removed before I took it off the dealer floor. The emissions machines are not set up to check MCs. I don't think they make a gas cap adaptor that will fit all bikes and shops that do emissions don't have exhaust vent plumbing for all the different exhaust systems available.