What is required to have a dog in the Washington D.C. area?

A loving home, food, and plastic bags to pick up their poop

As required by law, a $15 fee for a dog license will be added for dogs going to homes in the District of Columbia. Adopters who reside outside of DC should inquire with their local animal control agency about license and other fees associated with pet ownership.

Nothing as long as it's not a pitbull if it is then you have to have papers on them