On and after July 1, 1984, for purposes of meeting the requirement of subdivision (b) of Section 29142.4, the Metropolitan Transportation Commission may consider, as fare revenues, that portion of the local support of an operator for its transit system which exceeds its base level of operating support as determined by the commission, if the commission finds that this consideration will enable the operator to maintain or improve vital transit within a coordinated fare structure.
Ca. Pub. Util. Code § 29142.5