D.C. residents who are subscribed to the District of Columbia Department of Motor Vehicles email alert system were reminded Monday that the agency has discontinued in-person vehicle registration renewals. The email, which was sent on the same day the change became effective, explained that from now on, for all vehicle registration renewals, customers must use online or by mail services. And if you missed the message and show up in person to a DMV service center, you’ll be directed to a dropbox to drop off registration renewal requests for processing. Dropbox renewals will be processed within 48 business hours, the DMV says. The change is tied to Mayor Fenty’s FY2010 budget plan, which proposed eliminating in-person vehicle registration renewals and most safety inspections in order to cut spending. You can sign-up for email notifications from the DMV at their web site.