The 171 wineries producing 80% of California’s total wine production (255 million cases) and 2,247 vineyards farming 32% of California winegrape acreage (204,122 acres) are Certified California Sustainable Winegrowing, according to the California Sustainable Winegrowing Alliance.
The total statewide certified vineyard acreage is nearly 50% based on the additional 15% of California vineyard acreage certified to other state sustainability programs, including Fish Friendly Farming, Lodi Rules, Napa Green and Sustainability in Practice (SIP).
The program was updated in 2017 to allow use of a new logo on labels and 6.2 million cases (76 million bottles) bear the logo, showing that the wine was made in a Certified California Sustainable Winery with 85% or more of grapes from certified vineyards (including Certified California Sustainable, Lodi Rules and SIP) and 100% from California.