The US operates a Visa Waiver Program for certain countries for visitors staying less than 90 days. Please check if your country is a participant in this program:

If you require a letter of invitation for visa purposes, please send an email with the subject line "visa letter request" to

Please note that letters of invitation will only be issued to persons who have already registered to attend ISoLA 2005.

Airport Transfer and Local Transportation

Nearest airport is BWI (Baltimore Washington International), which is approx 25km away. Washington Dulles airport is approximately 45km away.

Transportation is provided by: Airport Connection Limos
This is a very reliable limo service, which meets the passenger at baggage claim and brings them directly to their destination. Highly recommended for reliability and on-time arrival. Price is per car, not per person.
tel: 1 877 772 5466 (toll free)
tel: +1 202 393 2110
fax: +1 301 565 5020

Shared ride service (cheaper but may involve a number of stops en route) is provided by Super Shuttle; price is per passenger.
tel: 1-800-BLUE VAN (258-3826) or
tel: 703 416-6661