Welfare and Institutions Code section 5984

(a)

For purposes of implementing this part, the California Health and Human Services Agency and the department may enter into exclusive or nonexclusive contracts, or amend existing contracts, on a bid or negotiated basis. Contracts entered into or amended pursuant to this part shall be exempt from Chapter 6 (commencing with Section 14825) of Part 5.5 of Division 3 of Title 2 of the Government Code, Section 19130 of the Government Code, Part 2 (commencing with Section 10100) of Division 2 of the Public Contract Code, and the State Administrative Manual, and shall be exempt from the review or approval of any division of the Department of General Services.

(b)

Notwithstanding Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code, the California Health and Human Services Agency and the department may implement, interpret, or make specific this part, in whole or in part, by means of plan letters, information notices, provider bulletins, or other similar instructions, without taking any further regulatory action.