OEHHA performs a variety of activities related to the protection of human health from toxic effects of pesticides:

OEHHA and the California Department of Pesticide Regulation (DPR) have shared responsibility for many of these activities.

Questions about Pesticides? Contact the Pesticides office: (510) 622-3170 or email

Education and Training

Educational materials for health care providers and general public

Illness Reporting

How to report and reporting requirements

Invasive Species

Assessment of chemicals used to control invasive species

Medical Supervision

Identify and prevent excessive exposures to pesticides

Peer Review

Peer review of toxicology data and risk assessments

Pesticides Reports, Notices and Documents

All pesticide related notices

Reports, Notices, Documents

Jun 13, 2019: List of Registered Medical Supervisors
A list of registered medical supervisors in the biomonitoring program who measure cholinesterase activity in blood samples collected from agricultural workers who regularly handle category I and II organophosphate and carbamate pesticides.
Feb 10, 2019: Education and Training
Educational Materials and Courses for Health Care Providers and the General Public