Information to support the Environmental Permitting Regulations (EPR) permit reviews for the Intensive Rearing of Pigs and Poultry (IRPP) Sector

Closes 25 Feb 2021

Opened 26 Feb 2019


The Industrial Emissions Directive (IED) requires EPR permits to be reviewed when the relevant Best Available Techniques Reference Document (BRef) for the sector is published. The Intensive Rearing of Pigs and Poultry BRef was published in February 2017.

The Environment Agency has carried out a review of the Best Available Technique (BAT) Conclusions and we anticipate that plant and techniques in use at existing permitted sites are for the most part compliant with the new conclusions. There are some new standards and requirements operators will need to comply with however.

Existing permits will need to be varied to incorporate these new requirements and will be checked during compliance.

The Environment Agency has developed a streamlined approach to help minimise the cost to permit holders and ensure all permits are updated in a timely way.  The cost of the variation for all permit holders will be £380.

The Environment Agency has issued a letter with information on the permit review process to the registered office of all sites. We are now in the process of sending a draft variation notice to check for each site that we have identified as requiring a permit review under this BRef. This process is likely to continue until October 2020.

Further information is available on the documents below:

  • Best Available Techniques Conclusions:
  • Interpretation Document (Working Document v1.1)
  • Letter to permit holders – information on the review – poultry
  • Letter to permit holders – information on the review – pigs
  • Frequently Asked Questions
  • Example permit review variation notice
  • Explanatory note for the draft variation notice
  • Generic permit review decision document

If you have any queries, please contact your local area officer, or our national information contact at


  • Anyone from any background


  • Permits
  • Environmental permitting
  • Installation