World Energy Alternatives, a biodiesel fuel provider based in Chelsea, MA, has won a long-term fuel contract from the Defense Energy Support Center (DESC for biodiesel, a diesel fuel replacement derived from domestically produced vegetable oils such as soybeans.

World Energy’s fuel, called Envirodiesel, will power vehicles and equipment in multiple fleets from different branches of the U.S. government, including the Postal Service, the Marines, the Air Force, the Department of the Interior, and the Department of Agriculture, the company said.

Among the installations receiving the fuel are the Postal Service in New York City and several Department of Interior sites in Washington, DC. The installations will use B20, a 20% blend of biodiesel with petroleum-based diesel.