Cal. Sts. & Hy. Code § 8886
Money in the special reserve fund may be temporarily invested in any authorized investments pursuant to Article 1 (commencing with Section 53600) of Chapter 4 of Part 1 of Division 2 of Title 5 of the Government Code, or in any authorized investments pursuant to law in the case of money resulting from assessments levied for bonds authorized to be issued after the effective date of the amendments to this section enacted during the 1981-82 Regular Session of the Legislature, provided that the maturities thereof shall not be later than the date on which the money may be required for the redemption fund pursuant to this part.
Any income realized from such investments shall be credited to the special reserve fund, and any loss or expense resulting from such investment shall be charged to that fund.
Ca. Sts. and High. Code § 8886