California Code, Streets and Highways Code - SHC § 31856

(a) By a lump sum payment or by contract of purchase with payments made annually, or otherwise, over a period of years, butthat contract shall not provide for payments to be over a period longer than 25 years from the date of the contract.  The purchase price may be paid from the limited taxes levied for acquisition of parking places under Section 31822, from revenues derived from operation of parking places of the district, or from any other funds of the district available for the purpose.

(b) By lease, but the lease shall not run for a period longer than 25 years.  Rental on any lease may be paid from revenues derived from the operation of parking places of the district, from the limited taxes levied for maintenance, operation, repair, and improvement under Section 31822, or from any other funds of the district available for the purpose.

(c) Under lease and option to purchasebut the lease and option shall not run for a longer period than 25 years.  The purchase price may be provided from revenues derived from operation of parking places of the district, from the limited taxes levied for acquisition of parking places under Section 31822, or from any other funds of the district available for the purpose.

(d) Pursuant to Section 31861.

(e) Any contract of purchase, lease, or lease with option to purchase entered into pursuant to subdivision (a), (b), or (c) may contain agreements or covenants requiring levies pursuant to Section 31822, or requiring the fixing and collection of fees, charges, and rentals for the use of parking places of the district, or both, sufficient to produce funds from which the purchase price or rent shall be paid in accordance with the terms of the contract or lease.