An owner or operator of any of the following boilers or emergency generators shall comply with the requirements of Env-A 803.06:

1. (a) Utility boilers subject to Env-A 1303 with heat input rates of at least 5,000,000 Btu per hour but less than 50,000,000 Btu per hour;
2. (b) Steam electric boilers subject to Env-A 1304 with heat input rates of at least 5,000,000 Btu per hour but less than 50,000,000 Btu per hour;
3. (c) Industrial boilers subject to Env-A 1305 with heat input rates of at least 5,000,000 Btu per hour but less than 50,000,000 Btu per hour;
4. (d) Emergency generators subject to Env-A 1311 that allow for manual adjustment of the air-to-fuel ratio or ignition timing in order to affect the combustion process; and
5. (e) Auxiliary boilers subject to Env-A 1312 with heat input rates of at least 5,000,000 Btu per hour but less than 50,000,000 Btu per hour.

Source. #9802, eff 10-31-10 (from Env-A 803.03); ss by #12762, eff 5-1-19