County of San Diego, Department of Agriculture, Weights & Measures
Pesticide Regulation
9325 Hazard Way, Suite 1002
San Diego, CA 92123
858-694-2739
https://www.sandiegocounty.gov/content/sdc/awm/pesticides.html
California Department of Pesticide Regulation
Certified Private Applicators License Information
1001 I St., P.O. Box 4015
Sacramento, CA 95812
https://www.cdpr.ca.gov/docs/license/liccert.htm