The American Society for Testing and Materials (ASTM) recently released a new standard, ASTM D7566, Specification for Aviation Turbine Fuels Containing Synthesized Hydrocarbons. It "provides criteria for the production, distribution and use of aviation turbine engine fuel produced from coal, natural gas or biomass using the Fischer-Tropsch process". The impetus behind the release of the new standard is the search for alternatives to conventional aviation fuels. According to Mark Rumizen, aviation fuels specialist of the Federal Aviation Administration, and chair of the task group that developed ASTM D7566, "concerns with the future cost and supply of conventionally derived aviation fuel and the imposition of carbon emissions limitations contributed to the development of ASTM D7566". He also said that "the issuance of ASTM D7566 is the culmination of a focused, collaborative effort by the commercial aviation industry to move toward more environmentally friendly fuels, and to diversify the suppliers of aviation fuel". Participation from different sectors involved in aviation fuel infrastructure and biofuel producers for development of future annexes of ASTM D7566 is encouraged..