Emissions, sure. If you're someone deeply involved in the car industry, you'll have a DMV person (not officially, just from having spent that much time there), and they'll help you work through the process, which includes an inspector examining your car in the DMV parking lot. The harder one to meet is Federal Motor Vehicle Safety Standards (FMVSS) you mentioned above, which includes crash testing.

It's one thing to work on your car and get it to pass smog. It's another thing entirely to buy a dozen of them.