saw dust fired fbc boiler - Clean Boiler

eCFR :: 40 CFR Part 63 Subpart DDDDD -- National Emission

(e) If you own or operate an industrial, commercial, or institutional boiler or process heater and would be subject to this subpart except for the exemption in § 63.7491(l) for commercial and industrial solid waste incineration units covered by part 60, subpart CCCC or subpart DDDD, and you cease combusting solid waste, you must be in