42 U.S.C. § 13332
Coal-fired diesel engines
The Secretary shall conduct a program of research, development, demonstration, and commercial application for utilizing coal-derived liquid or gaseous fuels, including ultra-clean coal-water slurries, in diesel engines. The program shall address—
(1)
required engine retrofit technology;
(2)
coal-fuel production technology;
(3)
emission control requirements;
(4)
the testing of low-Btu highly reactive fuels;
(5)
fuel delivery and storage systems requirements; and
(6)
other infrastructure required to support commercial deployment.
( Pub. L. 102–486, title XIII, § 1302 , Oct. 24, 1992 , 106 Stat. 2972 .)