Well, that varies by state, I think. Wisconsin had specific exemptions for cars over a certain age, or cars that would cost too much to bring in line. You just

Well, that varies by state, I think. Wisconsin had specific exemptions for cars over a certain age, or cars that would cost too much to bring in line. You just had to get an estimate from your auto shop demonstrating that compliance would exceed a certain amount, and you'd be waived.