Although the legislation arose out of strident local opposition to an $11-billion progressive P3 project that will add tolled express lanes to sections of the I-495/Capital Beltway and I-270, plus a new Potomac River crossing to Virginia, its supporters insisted the new requirements would apply only to projects not yet approved by the state’s three-member Board of Public Works.

Proponents also cited the protracted effort to build the Purple Line light rail system as justification for additional P3 oversight, given that project’s projected two-year delay and millions of dollars in cost overruns. Both projects are backed by Gov. Larry Hogan (R), who also sits on the board.

Yet even project skeptics on the state Senate committee viewed the bill as an attempt to stall the Beltway/I-270 plan, particularly since the Board of Public Works has yet to vote on the project’s pre-development agreement with the team led by Transurban (USA) Operations, Inc. and Macquarie Infrastructure Developments LLC that was selected in February to manage the megaproject.

In addition, the Maryland Dept. of Transportation warned that enactment would increase project costs and uncertainty that would “irreparably damage” prospects for future private investment.

Hogan and MDOT "said that the plan to add private toll lanes to interstates 495 and 270 would be at “no net cost' to Maryland taxpayers. But the administration has made clear that taxpayers cannot count on this promise," said opponent Barbara Coufal, co-chair of Ciitizens Agains Beltway Expansion in a published opinion. She claims the agency "objected to a provision in the MDOT Promises Act that would prohibit state subsidies to the I-495/I-270 developer."

Supporters have already vowed to renew efforts to change Maryland’s P3 law during next year’s legislative session.