To mainstream the value pricing program, SAFETEA includes a proposal to establish a variable toll pricing program to allow all States to use variable pricing to manage the congestion on their Interstates or to reduce emissions in a nonattainment or maintenance area. SAFETEA also would allow States to permit single occupancy vehicles on high occupancy vehicle lanes so long as time-of-day variable changes are assessed (so called HOT lanes). In addition SAFETEA proposes the expansion of the pilot program that permits States to toll Interstate System facilities for the purpose of financing their reconstruction or rehabilitation. Under current law, States must show that collecting tolls is the only way to improve the facility. Under the proposal, this strict financial analysis requirement would be replaced with a requirement that the State must show that financing the improvements to the facility through tolls is the most efficient economical or expeditious way to advance the project. Increased opportunity for tolling on the Interstate System could translate into more private sector involvement with such projects.