check with the NHSTA or wahtever it is, they'll tell you if it needs to pass emissions or not. it will also tell you whether or not the car has been pre approved or if you will track down a national certified importer to bring it up to code and file the petition for you. Unfortunately, you can't choose the shop youg et it done at, your only choice is throug the handful of certified importers who charge an arm and a leg if youra car isn't on the NHSTA list and whats more FEDERAL LAW PROHIBITS THE RELEASE OF THE CAR TO YOU UNTIL IT PASSES US SAFETY RATINGS WITH A GRADE OF FAIR ON ALL IMPACT TESTS AND EPA EMISSIONS STANDARDS
then after that you still gotta worry about whether or not it will pass emissions in your state and county to get it registered.
its a bitch, i looked into this a while back.