(

a) The governing procedure by which an agency conducts an adjudicative proceeding is subject to all of the following requirements:

(1) The agency shall give the person to which the agency action is directed notice and an opportunity to be heard, including the opportunity to present and rebut evidence.

(2) The agency shall make available to the person to which the agency action is directed a copy of the governing procedure, including a statement whether

Chapter 5 (commencing with

Section 11500) is applicable to the proceeding.

(3) The hearing shall be open to public observation as provided in

Section 11425.20.

(4) The adjudicative function shall be separated from the investigative, prosecutorial, and advocacy functions within the agency as provided in

Section 11425.30.

(5) The presiding officer is subject to disqualification for bias, prejudice, or interest as provided in

Section 11425.40.

(6) The decision shall be in writing, be based on the record, and include a statement of the factual and legal basis of the decision as provided in

Section 11425.50.

(7) A decision may not be relied on as precedent unless the agency designates and indexes the decision as precedent as provided in

Section 11425.60.

(8) Ex parte communications shall be restricted as provided in

Article 7 (commencing with

Section 11430.10).

(9) Language assistance shall be made available as provided in

Article 8 (commencing with

Section 11435.05) by an agency described in

Section or 11435.15. (

b) The requirements of this

section apply to the governing procedure by which an agency conducts an adjudicative proceeding without further action by the agency, and prevail over a conflicting or inconsistent provision of the governing procedure, subject to

Section 11415.20. The governing procedure by which an agency conducts an adjudicative proceeding may include provisions equivalent to, or more protective of the rights of the person to which the agency action is directed than, the requirements of this section.