One Veterans Place Silver Spring, MD (just outside DC)
The hotels and conference venue are a couple of downtown blocks apart in a very walkable area with Metro access to/from downtown DC and Reagan National (DCA) airport, restaurants, and shopping.
Google map of the area - http://g.co/maps/xag4t
The closest airport is Reagan National (DCA). You can Metro (yellow line to red line, approx $3/30min) or cab (approx $30 US) from DCA to Silver Spring. Dulles/IAD and BWI airports are both 30-40 miles outside of the city and have Shuttle service or cab fare ($50-$60 US).
Attendees are responsible for their own accommodations. Room blocks are available at these nearby hotels.
Courtyard by Marriott Silver Spring Downtown
$119/night - block rate ends March 21, 2013
Call 1-800-321-2211 and mention group code APIAPIA or
go to www.marriott.com/WASSV and use group code APIAPIA
DoubleTree by Hilton Washington DC/Silver Spring
$119/night - block rate ends March 29, 2013
Call 1-800-222-TREE (8733) and mention group code PLE or
go to DoubleTree by Hilton Washington DC / Silver Spring and use group code PLE