California Code, Government Code - GOV § 31595.9

Notwithstanding the provisions of Section 31595, in addition to other investments authorized by this article, funds received by the county treasurer not required for current disbursements may be invested in repurchase agreements or reverse repurchase agreements of any securities authorized by this article.

For purposes of this section, “repurchase agreement” means a purchase of securities by the board pursuant to an agreement by which the seller will repurchase the securities on or before a specified date and for a specified amount.

For purposes of this section, “reverse repurchase agreement” means a sale of securities by the board pursuant to an agreement by which the board will repurchase the securities on or before a specified date and for a specified amount.