Guidance

Bats: mitigation class licence to allow low impact work on bat roosts (CL21)

Register as an ecological consultant to disturb or capture common bats, or damage or destroy low conservation status roosts; find out how to register a site and if you need to pay.

Documents

Annex A: application form

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Annex B: application form

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Annex C or Annex D: application form - use for either annex

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Details

The bat ‘low impact’ licence (CL21) is a mitigation class licence that allows a registered ecological consultant to interfere with certain bats and their roosts. There are 4 annexes to this licence that specify:

  • which species and roost type you can interfere with
  • areas in England where you can carry out work

Use the guide to find out:

  • the criteria you must meet to become a registered consultant
  • what the licence allows you to do
  • which licence annex is right for you
  • if you’ll need to pay to register a site on your licence
  • how to apply and which form to use
  • how to download and fill in the forms

Use the relevant application form for the annex you choose.

Published 6 April 2017
Last updated 23 April 2019 + show all updates
  1. Updated guide with details of when you may need to pay for site registration.

  2. Replaced application forms for annexes A, B, and C or D with updated versions.

  3. County of Devon has been added to the list for Annex C of the bat low impact licence.

  4. Application forms for each annex added.

  5. Added guidance on 4 annexes you can use with this licence.

  6. Replaced application form with updated version.

  7. First published.