42 U.S.C. § 13332 — Coal-fired diesel engines

The Secretary of Energy must run a program of research, development, demonstration, and commercial use for coal-derived liquid or gaseous fuels in diesel engines. This includes ultra-clean coal-water slurries — mixtures of very fine coal particles in water. The program must address six things: (1) the engine changes needed to retrofit diesel engines for these fuels; (2) the technology for making coal-based fuel; (3) the rules needed to control emissions; (4) testing low-Btu (low-energy) fuels that react easily; (5) the fuel delivery and storage systems these fuels need; and (6) any other infrastructure needed to use these fuels commercially.