HSC §52053: (a) Except as provided in subdivision (b), the powers conferred by this part are in addition and supplemental to, and the limitations imposed by this part shall not affect the powers conferred by, any

(a) Except as provided in subdivision (b), the powers conferred by this part are in addition and supplemental to, and the limitations imposed by this part shall not affect the powers conferred by, any other law. (b) The Legislature finds and declares that the market for municipal home mortgage revenue bonds is limited and that, as a matter of overriding state policy, issuances of such bonds should be limited to financing housing for persons whose housing needs are least satisfied by conventional mortgage financing and other governmental home ownership assistance programs. This part contains appropriate limitations with respect to mortgagor income and also contains provisions which will assist in assuring that no bond issuance under this part will result in any impairment of the public credit in this state. Therefore, this part shall be the exclusive authority for issuance of revenue bonds by any city, including any charter city, county, or city and county for the purpose of providing long-term mortgage financing for the construction or acquisition of housing, excluding multifamily rental housing and multifamily cooperative housing; provided, that nothing in this subdivision shall supersede any other provision of state law authorizing the provision of long-term mortgage financing by any state agency or local public entity; and provided further, that nothing in this subdivision shall affect, or be in any way applicable to, revenue bonds issued (and loans made with the proceeds thereof) by the Cities of San Bernardino, Burbank, or Pasadena on or before July 1, 1980, the interest on which would be excludable from the gross income of the recipients by reason of the applicable laws of the United States and the regulations promulgated thereunder in effect at the time such revenue bonds are issued, or by any other charter city on or before February 1, 1980, the interest on which would be excludable from the gross income of the recipients by reason of Section 4(b) of the proposed Mortgage Subsidy Bond Tax Act of 1979, as reported by the Committee on Ways and Means of the United States House of Representatives on August 31, 1979. Furthermore, nothing in this subdivision shall affect the authority conferred upon a charter city by its charter to issue revenue bonds to undertake a program of long-term mortgage financing of multifamily rental housing. (c) Home mortgages may be acquired, purchased, and financed, and bonds may be issued under this part for purposes of this part, notwithstanding that any other law or resolution may provide for the acquisition, purchase, and financing of like home mortgages, or the issuance of bonds for like purposes, and without regard to the requirements, restrictions, limitations, or other provisions contained in any other law or resolution.