Article 2. Quarantine And Other Regulations For Pests Within The State of California Food And Agricultural Code >> Division 4. >> Part 1. >> Chapter 5. >> Article 2.

If the director receives information of the existence of any pest which is not generally distributed within this state, he shall thoroughly investigate the existence and probability of its spread, and the feasibility of its control or eradication.

The director may establish, maintain, and enforce quarantine, eradication, and such other regulations as are in his or her opinion necessary to circumscribe and exterminate or prevent the spread of any pest which is described in Section 5321.

This division and the regulations which are established pursuant to this division are of a statewide interest and concern and are intended to occupy the field. No local jurisdiction shall adopt ordinances, laws, or regulations which prevent, hinder, or delay the effect or application of this division or regulations established pursuant to this division. Regulations established pursuant to this division are not valid unless they are clearly consistent with a strict interpretation of this division and are necessary to effectuate the purpose of this division. The adoption of the regulations does not create any presumption of their necessity or validity.