CA Gov't Code Section 14977.1

(a)

Notwithstanding any other provision of law, the Department of General Services may enter into exclusive or nonexclusive contracts on a bid or negotiated basis with manufacturers and suppliers of single source or multisource drugs. The department may obtain from those manufacturers and suppliers, discounts, rebates, or refunds based on quantities purchased insofar as permissible under federal law. Contracts entered into pursuant to this chapter may include price discounts, rebates, refunds, or other strategies aimed at managing escalating prescription drug prices.

(b)

Contracts under this chapter shall be exempt from Chapter 2 (commencing with Section 10290) of Part 2 of Division 2 of the Public Contract Code.