I've been running over to the Centreville station from Annapolis pretty much since it opened, and was very happy to see an article announcing that B20 is now available in Annapolis. The Navy Exchange gas station carries B20 and is making it available to the public. See the article at: http://www.hometownannapolis.com/cgi-bin/read/2007/11_18-06/TOP. Haven't gotten over there yet, but the article says they accept credit cards.