Guidance
Monitoring emissions from back-up generators: RPS 353
Environment Agency regulatory position on when you do not need to monitor emissions from permitted medium combustion plant that are used for back-up generation.
Applies to England
Documents
Details
This regulatory position statement (RPS) does not change your legal requirement to comply with your environmental permit when you operate a diesel fired generator to provide power in an on-site emergency.
However, the Environment Agency will not normally take enforcement action if you do not comply with this legal requirement if you meet the requirements in the RPS.
The regulatory position does not apply to any other legal requirements.
Updates to this page
Published 9 July 2025