California Code, Public Resources Code - PRC § 5010.1

(a) All fees, rents, and other returns for the use of any state park system area are the property of the state or the public agency operating a state park system area pursuant to an agreement entered into pursuant to Article 2 (commencing with Section 5080.30) of Chapter 1.2.  However, whenever significant savings can be achieved by the department or the operating public agency, the department or the public agency may enter into a contract with a concessionaire, lessee, or other natural person, corporation, partnership, or association for the collection of fees, rents, or other returns on behalf of the state or the public agency.  The contract may provide for the retention of a portion of any fee, rent, or other return as reimbursement for the cost of collection.

(b) Whenever significant savings can be achieved, the department may enter into a contract with any natural person, corporation, partnership, or association for the operation of a reservation system for the state park system and for the collection of state park fees in connection therewith.  The contract may provide for the retention of a portion of every fee or the imposition of a surcharge as reimbursement for the cost of providing that service.