Airlines won approval from a U.S.-based testing standards group to blend renewable fuels with commercial jet fuel to power planes.
The new ASTM International standard lets airlines use to 50 percent biofuel from vegetable oil-containing feedstocks, such as algae or tallow. The standard already has criteria for fuel produced from coal, natural gas or biomass.
Global airlines, aviation fuel producers, distributors and airport fuel farms will use the standard to verify fuel quality and performance, according to ASTM International.
It “brings the airline industry one step closer to meeting our environmental goals of widespread production of cleaner, alternative fuels while enhancing energy supply security and competitiveness,” John Heimlich, chief economist for the Air Transport Association of America, said in a statement.