Guidance
Operating a mobile boiler as a medium combustion plant (MCP): RPS 354
Environment Agency regulatory position on when you can use a mobile boiler that is a MCP without an environmental permit.
Applies to England
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This regulatory position statement (RPS) does not change your legal requirement to have an environmental permit when you operate a mobile boiler that is a MCP.
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 7 July 2025
Last updated 8 July 2025
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In the section 'Conditions you must comply with' added the word operational to clarify: You must not use mobile boilers to increase the operational thermal capacity where a regulated facility is undertaken.
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First published.