In July 2022, the General Assembly amended the state's P3 law to remove tolling as a means of funding the MBP3. As a result, PennDOT prepared Categorical Exclusions (CE) or CE Reevaluations for six of the projects as part of the federal environmental review process under the National Environmental Policy Act (NEPA). They are:

• I-80 Canoe Creek Bridges Project
• I-80 North Fork Bridges Project
• I-78 Lenhartsville Bridge
• I-80 Nescopeck Creek Bridges
• I-80 Over Lehigh River Bridge Project
• I-81 Susquehanna Bridges Project

As previously mentioned, PennDOT has entered a PDA with BPP to advance preliminary design work. The PDA will lead to separate contracts to finalize design, build, finance, and maintain packages of bridges in the MBP3. PennDOT will repay the amounts financed by the development entity through recurring availability payments over 35 years, beginning when construction is complete.

In November 2020, the MBP3 was proposed by PennDOT and approved by the Pennsylvania P3 Board, which includes representatives from all four legislative caucuses, to rehabilitate or replace major Interstate bridges using toll revenues, providing PennDOT with a means of addressing the state's growing backlog of needs without using or impacting the funding for PennDOT's larger program. In February 2021, PennDOT announced nine candidate bridge projects for inclusion in the program.