As applied in the wine industry, the term sustainable is used to indicate a winery where all viticultural, winemaking, and business practices conform to the goal of maintaining the land and environment is the best possible condition for generations to come. The Napa Valley, for example, was the first Agricultural Preserve in the United States (formed in 1968). Today nearly 90% of Napa County is under permanent or high levels of protection from development. In addition 75% of Napa Valley Vintners’ member wineries are currently participating in Napa Green, a comprehensive, “best practices” program of environmental stewardship. The Napa Valley Vintners’ objective is to have all of its members involved in Napa Green by the end of 2020.