I got a chuckle today at the NJ state inspection station. We need inspections every two years. As folks here said, my car is exempt from the emissions test, because of the way they administer it. They have a set up with rollers, where the drive axle of a two-wheel drive car rests. They run the drive wheels for a while to test the exhaust emissions. But they are not equipped for cars with more than one drive axle.
Tom