Ken Johnston will organize another special session on optical interferometry astrometry and give an invited talk on this subject. The headquarters hotel will be the Savoy Suites Georgetown, just outside the Observatory's gates on Wisconsin Avenue, and just north of Georgetown. NW, Washington, DC 20007. It is a small hotel. The rooms are very large and spacious, some with good views of the city.
Pets are welcome.
Transportation to airports and metro is available. There is a good restaurant in the hotel, plus entertainment some evenings. There are many other fine restaurants within a brief walk, as well as the night life of Georgetown. Be sure to mention the DDA when you make your reservation. Reservations are open now, and should be made early for the best choice of rooms.