And in any case, an Act of Congress is listed nowhere in the WestLaw legislative history for this section, so if you have some notion of how it's anywhere relevant, I'd appreciate you saying so.
Besides, what are you trying to say here? That Rahm Emanuel actually did have a Senate confirmation hearing that I'm overlooking?
My point is that the full text of the DC Official Code trumps a paragraph on the DC DMV website, what's yours?
So what you have here is a "teaching opportunity".
First, tell us how this is Constitutional. Second, tell us whether there are federal laws applicable to only DC, and third, tell us where DC's own laws exist considering that SOME of the things they may have passed aren't enforced.
What we have is a multi-year string of DC informational brochures telling you that APPOINTEES don't have to get DC licenses for their cars (and just looking that up will give you thousands of references to a very long history of reciprocity and appointees when it comes to DC). You have a single reference to a piece of text somewhere that you think explains everything, but ALAS the URL is bad so I can't bring it up.
I think I'll stick with the brochures.