The latest version shortens the outside the Beltway portion by three miles in the initial construction.
The typical tolls for rush hour trips inside the Beltway could be $7 to $9, according to a report by Virginia transportation officials.
A vote in Richmond allows VDOT to consider a public-private partnership for I-66 HOT lanes even while keeping open the option for public financing.
Drivers said the type looked small on some of the signs displaying toll rates.
Express lanes managers are experimenting with purple striping to enhance visibility.
VDOT is discussing conditions that would govern a long-term lease to operate express lanes.
Many answers about traffic and tolling inside the Beltway won't emerge till later this year.
Virginia officials will meet with the public this week, but many key issues are unresolved.
The program forgiving fees for first-time mistakes in the HOT lanes will become retroactive.
Key decisions on the HOT lanes project will be made this summer.