Health and Safety Code § 52066
CHAPTER 6. California Housing Finance Agency Assistance in Issuing City and County Revenue Bonds for Home Mortgages
Bonds of more than one city or county may be pooled for purposes of issuance and bond proceeds, reserved or other security for the bonds, including, but not limited to, loan or loan participation, made or derived from bond proceeds, may likewise be pooled to secure the issuance of any such bonds.