As the proclamation says, the District of Columbia's local laws are technically federal laws. So it wipes out the convictions of a good number of people in one of our major cities.

I can't quite tell if this applies to military convictions. That would be the other area where the Federal government takes the time to prosecute something as minor as mere possession or use.

Another interesting question: does this actually pardon, or is it more like an open call for applications? It looks to me like you'd want to get that pardon certificate from the WH Pardon lawyer well before the next election.