California Code, Financial Code - FIN § 28000

(1) Ten percent per annum.

(2) Five percent per annum plus the rate established by the Federal Reserve Bank of San Francisco on advances to member banks under Sections 13 and 13(a) of the Federal Reserve Act as now in effect or hereafter from time to time amended or, if there is no such single determinable rate of advances, the closest counterpart of this rate as shall be designated by the Commissioner of Financial Institutions of the State of California unless some other person or agency is delegated such authority by the Legislature. The date of determining the applicable rate established by the Federal Reserve bank shall be the 25th day of the month preceding the earlier of the date of execution of the contract to make the loan or forbearance, or the date of making the loan or forbearance.

(1) The rate determined pursuant to subdivision (a).

(2) One percentage point in excess of the interest rate imposed upon the loan made to the institution, as of the date of execution of the contract to make the student loan to such extent the foregoing creates and authorizes a class of exempt persons pursuant to Section 1 of Article XV of the Constitution.