(emphasis added)The taxi industry is one of the most corrupt industries in both the US and the world.
In the vast majority of places in the US, the only way to get taxi permits is to buy them from someone.
DC was one of the very few places in the US that didn't restrict the number of taxis, so permits were not bought or sold.
About 8 years ago there was test cheating scandal, and DC suspended the issuing of new permits.
I don't think there's been any new permits issued since. Maybe someone on this blog knows for certain.
no cancel fee with taxi