California Code, Public Utilities Code - PUC § 106060

(a) The district has no authority to impose sales or special taxes, but may, with the concurrence of a majority of the member jurisdictions represented on the board of directors, cause to be submitted to voters of the district a ballot measure for the imposition of those taxes.  A ballot measure shall not be submitted to the voters of the district pursuant to this subdivision on or after January 1, 2026.

(b) The district, upon the affirmative vote of at least two-thirds of the board of directors, may submit to the voters of the district a measure proposing a retail transactions and use tax ordinance in accordance with the Transactions and Use Tax Law (Part 1.6 (commencing with Section 7251) of Division 2 of the Revenue and Taxation Code).

(c) Notwithstanding any other law, the district may impose a transactions and use tax pursuant to Chapter 3.95 (commencing with Section 7300.5) of Part 1.7 of Division 2 of the Revenue and Taxation Code.

(d) If approved as required by law, the district may impose and administer fees and other funding sources secured for transportation system operation, maintenance, and improvement.

(e) The board of directors may set fares for public transit service by resolution or minute order.