I'm going to be applying for a Motor Carrier # soon (MC# from now on in this post).

Where can I put it, still be legal, and not make things look gawky, god awful, or "Dumb" (Like on the door)..?

Anyone else have an F-Series with a MC#? Where'd you put it? Pics?

 

I don't know what's allowed, but maybe you could make the letters contrast less? Like dark gray letters on a black truck.

 

I think there are pretty tight guidelines on where they can be placed, coloring, sizing, etc. I've always seen them on the bottom of the door or on the side of a van body.