If you are 18 years of age or older, you may choose to become an organ and tissue donor when obtaining your driver license. If you are a male between the ages 18 and 25, the DC DMV will register you with Selective Service unless you use a waiver form to opt out. If you are a citizen of the United States who will be at least 18 years of age by the time of the next election, you may register to vote or update your registration.