Any public multicounty transit system entirely within the region using an exclusive right-of-way shall incorporate physical characteristics compatible with the system of the San Francisco Bay Area Rapid Transit District, and provision shall be made for the unified management and operation of any interconnecting facilities.
Source:
Section 66515.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=GOV§ionNum=66515.5..