Not that I can find. If you don't have your uniform to operate - lost luggage, left it at the previous hotel, etc....guys just operate in their best casual clothing. No penalty there.

The uniform police are going to have a hard time trying to identify who is or isn't currently on a trip - thus requiring compliance. If I am jumpseating and hanging out in the AOC - I could be in a partial uniform setup with the jacket / hat of my choosing...completely legal. I'm guessing that this will all be a moot point and difficult to enforce - especially at every location outside MEM.