California Code, Health and Safety Code - HSC § 112165

(a) The department shall adopt regulations regarding all of the following:

(b) The department shall adopt regulations by January 1, 1999, to interpret and enforce the provisions of this chapter. The regulations shall be adopted by the department in the manner prescribed by Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code.

(c) The regulations shall conform, so far as possible, to the standards or procedures established in the guidelines adopted by the National Shellfish Sanitation Program that pertain to the evaluation of shellfish-growing areas and handling facilities, but shall provide for regulating other wastes or contaminants not covered by the guidelines adopted by the National Shellfish Sanitation Program that would render shellfish unsafe or unfit for human consumption.If the department adopts standards or procedures that exceed standards or procedures established in the guidelines adopted by the National Shellfish Sanitation Program, the department shall provide a written finding describing the public health need for those standards and procedures in the rulemaking process.