Mariposa County, CA Home of Yosemite

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Williamson Act
Biennial Review Reporting

  • Mariposa County Williamson Act lands are required to report the agricultural operations on a biennial basis
  • The Biennial Review Reporting requirement started in the years 2011-2012
  • The Biennial Review Report forms are mailed out at the end of November on even numbered years to Williamson Act land owners 
  • Current Biennial Review Reporting forms will be posted here when they are available
  • The most recent Biennial Review reporting form is posted here:

If you have any questions about the Biennial Review Reporting requirements please contact us at (209) 966-5151

State Information
The California Land Conservation Act of 1965--commonly referred to as the Williamson Act--enables local governments to enter into contracts with private landowners for the purpose of restricting specific parcels of land to agricultural or related open space use.

The California State Department of Conservation

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PO Box 784 | 5100 Bullion St. | Mariposa, CA 95338