I was told about this by a customer this morning and found this article
http://www.foxnews.com/leisure/2015/06/17/bill-could-launch-new-american-classic-car-industry/
"Perhaps most importantly, the cars will have to be exact visual replicas of vehicles that are at least 25 years old, and their original manufacturers must license the designs. Stuart Gosswein, SEMA’s senior director of federal government affairs, said previous attempts to create this type of low volume classification were stymied in part by opposition from some major automakers. Allowing only classic, and not unique, designs should make it more palatable for the industry to accept, he said."
http://www.foxnews.com/leisure/2015/06/17/bill-could-launch-new-american-classic-car-industry/
"Perhaps most importantly, the cars will have to be exact visual replicas of vehicles that are at least 25 years old, and their original manufacturers must license the designs. Stuart Gosswein, SEMA’s senior director of federal government affairs, said previous attempts to create this type of low volume classification were stymied in part by opposition from some major automakers. Allowing only classic, and not unique, designs should make it more palatable for the industry to accept, he said."