Natural Resources Wales
Medium Combustion Plant Directive (MCPD) permits are standalone permits. They only cover emissions of SO?, NO? and dust to air. There are no permit conditions for water, land, energy efficiency, odour or noise.
There are 3 types of permit for a stationary or mobile medium combustion plant (MCP):
- standard rules permit low risk
- simple bespoke low risk
- complex bespoke permit high risk
Find information on what to do if your MCP is already permitted, for example, if you have:
- an IED installations environmental permit
- a local authority Part B section 1.1 or 5.1 activity permit
Before you apply
Check you have all the information you need, including the deadlines you must meet. Read the guidance on:
- England, apply to the Environment Agency using these details and application forms
- Wales, apply to Natural Resources Wales use their details and application forms
You need to apply in time for the regulator to determine your application check the After you apply section of this page for more information.
Standard rules permits
To apply for a standard rules permit you must be able to meet the rules set out in the permit. If you cannot, you must apply for a bespoke permit.
See the standard rules permits available for low risk stationaryMCPs. The standard rules permits are not suitable if yourexisting MCPis also classed as a specified generator.
Apply for a standard rules permit
When you submit your application, you must provide the:
- operators name and the address of the registered office for mobile MCP the owner is the operator
- MCPs location, if stationary address, postcode and the national grid reference or latitude and longitude (not required for mobile MCP)
- net rated thermal input (MWth)
- type of combustion plant such as diesel engine, gas turbine, dual fuel engine, other engine or boiler
- type and portion of fuels used, as set out in the fuel categories in Annex 2 of the MCPD
- operation start date
- Nomenclature of Economic Activities (NACE) code for the activity
- expected annual operating hours and the approximate average load in use (see the ELV exemption declaration section of this page)
In your application you must be able to demonstrate your ability as an operator. Provide information on:
- any conviction of a relevant offence by you or a relevant person
- current or past bankruptcy or insolvency proceedings against you or a relevant person
You must also confirm you have a written management system.
ELV exemption declaration
If the 500 operating hours per year exemption applies to your MCP, you must provide a signed declaration that the MCP will not operate more than the allowed hours.
Charges for standard rules permits
SR2018 No 7: new and existing, low risk, stationary medium combustion plant and SR2022 No 9: new and existing, low risk, stationary medium combustion plant which is a natural gas boiler
|Number of MCPs
|up to 3
|up to 5
|up to 8
|up to 10
|up to 15
Help and advice
See guidance on how to get help with your application in England.
In Wales, email firstname.lastname@example.org for help.
Complete and submit the standard rules permit application form
Complete the application form. The form verifies the standard rules permit you have selected based on the information you put in.
Email it to email@example.com.
If you cannot use the form or you have any issues with it, please contact firstname.lastname@example.org.
If you cannot meet the conditions in a standard rules permit you must apply for a bespoke permit. There are 2 types:
- simple bespoke (low risk) does not require detailed air dispersion modelling
- complex bespoke (high risk) does require detailed air dispersion modelling
Read the following guidance to see:
- which type of bespoke permit you must apply for
- what information you must provide in addition to that required for a standard rules permit
Air emissions risk assessment
If each individual MCPis operating outside the minimum screening distances to the habitat sites given in the table then you can apply for a lower risk simple bespoke permit. If any of the MCP(s) are operating inside the minimum screening distances to habi