Cal. Public Utilities Code § 130240.1

(a) The Orange County Transportation Authority may enter into agreements for the joint use or joint development of any property or rights by the authority and any city, public agency, or public utility operating transit facilities or nontransit facilities, or both, or any other person, firm, corporation, association, organization, or other entity, public or private, either, in whole or in part, within or outside the county, for the joint use or development of any property of the authority or of the city, public agency, public utility, person, firm, corporation, association, organization, or other entity, public or private, for the establishment of through routes, joint fares, station cost-sharing, connector fees, or land, air, or development rights, sales or leasing, transfer of passengers, pooling arrangements, or for any other purpose necessary for, incidental to, or convenient for the full exercise of the powers granted in this chapter. As to any service which the authority is authorized to perform pursuant to this chapter, the authority may contract for the performance of the service by any city, county, or public utility the territory of which is, in whole or in part, within the county. (b) “Joint development” includes, but is not limited to, agreements with any person, firm, corporation, association, organization, or other entity, public or private, to develop or to engage in the planning, financing, construction, or operation of authority facilities or development projects adjacent, or physically or functionally related, to authority facilities. (c) “Nontransit facilities,” as used in this section, includes any land, buildings, or equipment, or interest therein, which is used primarily for the production of transit revenue not arising from the operation of a transit system.