California Code, Public Utilities Code - PUC § 100602

(a) In determining the amount of a special benefit assessment, the board shall measure the benefit to real property in the benefit district or zones therein according to the procedures and approval process set forth in Section 4 of Article XIIID of the California Constitution.

(b) The special benefit assessment constitutes a charge imposed on particular real property for a VTA project of direct benefit to that property, and does not constitute ad valorem taxes or any other form of general tax levy applying a given rate to the assessed valuation of all taxable property within the boundaries of the VTA.

(c) The VTA shall possess all powers necessary for, incidental to, or convenient for, the collection, enforcement, administration, or distribution of the special benefit assessment in accordance with California law.

(d) The revenue from a special benefit assessment, which is imposed pursuant to this chapter, or from bonds secured by the special benefit assessment, for the purpose of financing a rail transit station or rail transit related facility located within the benefit district, shall be used only for financing of the facility for which it was levied, and that revenue shall not be used for any other purpose or the payment of any other expense of the VTA, including, but not limited to, transit, transportation, or operating expense.