Fuel gas combustion device
Fuel gas combustion device means any equipment, such as process heaters, boilers and flares used to combust fuel gas, except facilities in which gases are combusted to produce sulfur or sulfuric acid.
Source
40 CFR § 60.101
Scoping language
As used in this subpart, all terms not defined herein shall have the meaning given them in the Act and in subpart A.