Senator McNerney's proposal to modify the governing board of the Tri-Valley-San Joaquin Valley Regional Rail Authority would replace the Mountain House Community Services District's representative with one from the City of Mountain House.

The rail authority, which coordinates connectivity between the Bay Area Rapid Transit system and the Altamont Corridor Express commuter service, currently maintains a governing board with representatives from multiple cities, counties, and transit agencies across the region. Under the proposed change, the City of Mountain House would join other municipalities like Dublin, Livermore, and Tracy in having direct representation on the board, while the Mountain House Community Services District would no longer hold a seat. The governing board would continue to include representatives from the Bay Area Rapid Transit District, the Livermore Amador Valley Transit Authority, and the San Joaquin Regional Rail Commission, among others.

As the change would create new responsibilities for the City of Mountain House, the bill establishes procedures for potential state reimbursement of associated costs. The Commission on State Mandates would determine whether these new duties constitute a state-mandated program requiring compensation under California law.