Originally Posted by
ColumbiaPete
I think you've confused the I-66 HOV lanes with the Dulles Access Road. Airport traffic can use the Dulles Access Road. (In fact, only cars with airport business are SUPPOSED to use it!)
If someone is driving to/from Dulles they are subject to the usual rules on I-66 for 2 or more people in the vehicle during certain hours, regardless of destination.
From
this link:
Motorists traveling to and from Dulles International Airport to go to the airport to catch a flight or to pick someone up at the airport are permitted to use I-66 inside the Beltway (I-495) during HOV hours. Motorists traveling to or from Dulles International Airport are not exempt from HOV restrictions on I-66 outside the Beltway (I-495). You are not permitted to use I-66 inside the beltway during HOV hours if you are going to the airport to eat, get coffee, get gas or any other reason other than boarding a plane or picking someone up at the airport.