### Question
How is the "synthetic fuel" defined?


### Answer
The term **synthetic fuel** is defined in *APPENDIX U.S.C. § 2098* as follows -

> any solid, liquid, or gas, or combination thereof, which can be used as a substitute for petroleum or natural gas (or any derivatives thereof, including chemical feedstocks) and which is produced by chemical or physical transformation (other than washing, coking, or desulfurizing) of domestic sources of—


(i) coal, including lignite and peat

#### Citation:
  - *APPENDIX U.S.C. § 2098*
  - Heading: **DEFENSE PRODUCTION ACT OF 1950 > ACT SEPT. 8, 1950, CH. 932, 64 STAT. 798 > TITLE III-EXPANSION OF PRODUCTIVE CAPACITY AND SUPPLY**

