Agriculture / Weights & Measures

Update on Coronavirus/COVID-19

Due to the efforts to limit the spread of COVID-19 in Contra Costa County, the Department of Agriculture/Weights and Measures has temporarily limited activities to include only essential business functions. The Contra Costa County Health Services Order and California Shelter-In-Place Order state that the food and agricultural sector, including farming, livestock, and fishing, are critical to maintaining and securing the food supply. The Department of Agriculture/Weights and Measures will continue to provide the following essential services to our agricultural community:

  • Phytosanitary certificates for shipping agricultural products
  • Pesticide Restricted Material permit and Operator ID changes or renewals
  • Invasive pest detection to protect the agricultural industry
  • Certified Producer Certificates to sell at the Certified Farmers’ Market
  • Hemp registration
  • Assistance with pesticide concerns
  • Weights and Measures complaints
  • Other relevant issues as they arise

If you need assistance with any of these services, please call our office at 925-608-6600 or email

Mission Statement

The Contra Costa County Department of Agriculture under the direction of the California Department of Food and Agriculture, Department of Pesticide Regulation, and Division of Measurement Standards, is responsible for conducting regulatory and service activities pertaining to the agricultural industry and the consumers of our county. The primary purpose and objective of this office is the promotion and protection of the county’s agricultural industry, environment, and citizens. We work hard to ensure a safe place to live and a fair marketplace for trade.

Main Office

2380 Bisso Lane photo

Branch Office

Branch Office
Get Directions
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State & Local Government Agencies Web Sites

The Department of Agriculture / Weights and Measures has staff available to assist you in Spanish and Punjabi. Please call (925) 608-6600.

El Departamento de Agricultura / Pesas y Medidas tiene personal disponible para ayudarlo en español. 

ਖੇਤੀਬਾੜੀ /ਨਾਪਤੋਲ ਵਿਭਾਗ ਕੋਲ ਤੁਹਾਡੇ ਨਾਲ ਪੰਜਾਬੀ ਵਿੱਚ ਸਹਾਇਤਾ ਕਰਨ ਲਈ ਸਟਾਫ ਉਪਲਬਧ ਹੈ.

The county will provide reasonable accommodations for disabled persons coming to our office. For assistance, please call Ralph Fonseca at (925) 608-6600.