- (a) An auxiliary boiler with a heat input rate of at least 5 million Btu per hour but less than 50 million Btu per hour shall comply with Env-A 1305.02 and Env-A 1305.03.
- (b) An auxiliary boiler with a heat input rate of at least 50 million Btu per hour, shall not exceed a NOx RACT emission limit of 0.20 lb. per million Btu based on a 24-hour calendar day average, regardless of the type of fuel burned.
Source. (See Revision Note at chapter heading for Env-A 1300) #9803, eff 10-31-10; ss by #12584, eff 8-15-18