CA Gov't Code Section 8878.120

Notwithstanding any provision of this chapter or the State General Obligation Bond Law set forth in Chapter 4 (commencing with Section 16720) of Part 3 of Division 4, if the Treasurer sells bonds pursuant to this chapter the interest on which is intended to be excluded from gross income for federal tax purposes, the Treasurer shall be authorized to maintain separate accounts for the investment of bond proceeds and the investment earnings on those proceeds, and the Treasurer shall be authorized to use or direct the use of those proceeds or earnings to pay any rebate, penalty, or other payment required under federal law or to take any other action with respect to the investment and use of bond proceeds required or desirable under federal law so as to maintain the tax-exempt status of those bonds and to obtain any other advantage under federal law on behalf of the funds of this state.