The California Walnut Board was established in 1948 to represent the walnut growers and handlers of California. The Board is funded by mandatory assessments of the handlers. The CWB is governed by a Federal Walnut Marketing Order. The Board promotes usage of walnuts in the United States through publicity and educational programs. The Board also provides funding for walnut production and post-harvest research.
The California Walnut Board and California Walnut Commission represent the California walnut industry, made up of over 4,000 growers and more than 100 handlers.
California walnuts are over 99% of U.S. production of English walnuts and three-quarters of the world trade.
The California Walnut Commission, established in 1987, is funded by mandatory assessments of the growers. The Commission is an agency of the State of California that works in concurrence with the Secretary of the California Department of Food and Agriculture (CDFA). The CWC is mainly involved in health research and export market development activities.