Combustion Activity Permit meaning

In practice, a Combustion Activity Permit is an environmental permit to operate combustion plant (for example, boilers, turbines and standby diesel generators), setting emission and operating controls. England and Wales: granted under the Environmental Permitting (England and Wales) Regulations 2016 (as amended) by the Environment Agency (England) or Natural Resources Wales. It covers A1/A2 combustion activities, Medium Combustion Plant (1–50 MW) and specified generators, and is commonly required for back‑up diesel generators at nuclear power stations and other major sites. Scotland: issued by SEPA under the Pollution Prevention and Control (Scotland) Regulations 2012 (as amended). Northern Ireland: issued under the Pollution Prevention and Control (Industrial Emissions) Regulations (Northern Ireland) 2012 and the Medium Combustion Plant Regulations (Northern Ireland) 2019 by the Northern Ireland Environment Agency. Ireland: regulated by the Environmental Protection Agency via Industrial Emissions licences (≥50 MW) and, for 1–50 MW, the European Union (Medium Combustion Plants) Regulations 2017. Key permit features typically include NOx, SO2 and dust limits, fuel specifications, operating‑hour limits for emergency/standby use, monitoring, reporting and record‑keeping, and requirements on stack height and maintenance. The term is descriptive rather than a defined statutory label, with broadly consistent usage across the UK and Ireland.