Pesticide Safety Program


Agricultural Commissioner Sealer of Weights and Measures

Greg Clark, Agricultural Commissioner Sealer of Weights and Measures


Pesticide Safety Program 

Vineyard Pesticide Application The Agricultural Commissioner administered PUE program is responsible for ensuring the safe use of pesticides in all settings in the county. Through training and outreach, we strive to educate pesticide users of their legal responsibilities. Through inspections and investigations we ensure the safety of workers, the public and the environment.   

Pesticide Use Enforcement Programs 

CalAgPermits Information  
CalAgPermits is our web-based (online) pesticide permitting program. This free service is intended to simplify and streamline the existing permit and pesticide reporting process. 

Continuing Education 

This information is  for QAL, QAC, PCA and PAC license and certificate holders. The Napa County Agricultural Commissioner’s Office does not endorse or offer any opinion as to the value of these services. DPR offers a list of classes available in the state. 

Free Sites:

 Western Farm Press 
 UC IPM Educational Program: Pesticide Resistance  

Paid Sites:
 American Institute of Pesticide Training
 P & L Marketing Inc.


Pesticide Container Recycling 

Sulfur Dioxide Use in Wineries  


For a comprehensive database of agricultural pesticides applied in Napa County visit the California Department of Pesticide Regulation Pesticide Use Reporting page. Select desired year to begin query; results are indexed by agricultural commodity or by chemical name.