California Code, Streets and Highways Code - SHC § 35411

(1) The gross or net, as the case may be, revenues from the operation of the parking place or places acquired and improved with the proceeds, if such is the case.

(2) The net revenues, or a portion thereof, from parking meters on certain public ways within the district, if such is the case.

(3) To the extent provided in this part, from a limited (stating the limits) ad valorem assessment to be levied upon taxable real property in the district, if such be the case.