Gov. Code, § 15451

The authority shall fix, revise, charge and collect rents for the use of each project owned by the authority and contract with any person, partnership, association or corporation, or other body, public or private, in respect thereof. Each lease entered into by the authority with a participating health institution and each agreement, note, mortgage or other instrument evidencing the obligations of a participating health institution to the authority shall provide that the rents or principal, interest and other charges payable by the participating health institution shall be sufficient at all times, (a) to pay the principal of, sinking fund payments, if any, the premium, if any, and the interest on outstanding bonds of the authority issued in respect of such project as the same shall become due and payable, (b) to create and maintain reserves which may but need not be required or provided for in the resolution relating to such bonds of the authority, and (c) to pay its share of the administrative costs and expenses of the authority. The authority shall pledge the revenues derived and to be derived from a project or other related health facilities or from a participating health institution for the purposes specified in (a), (b), and (c) of the preceding sentence and additional bonds may be issued which may rank on a parity with other bonds relating to the project to the extent and on the terms and conditions provided in the bond resolution.