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UK Civil Aviation Regulations

These are published by the CAA on our UK Regulations pages. EU Regulations and EASA Access Guides published by EASA no longer apply in the UK. Our website and publications are being reviewed to update all references. Any references to EU law and EASA Access guides should be disregarded and where applicable the equivalent UK versions referred to instead.



This is the second area we have chosen to review under the CAP 1991 procedure and is based around the Barnsley Altimeter Setting Region.

Call for Evidence

In November 2022, we launched a Call for Evidence for our review into the Barnsley region of the UK’s airspace. This Call for Evidence, along with our initial scoping work, forms the start of the this review.

We will collate views from this survey, discuss them with relevant Airspace Control Authorities and corroborate them, where feasible, with insight from our Airspace Analyser tool. We will then use this information to create our initial plan of airspace volumes where a case could be made for a proposed amendment to the airspace classification. We will then consult on this plan later this year.

In the proposed plan we will set out the messages we have heard throughout our engagement, including this Call for Evidence, and how we have used this insight to inform our view of potential airspace volumes to take through to amend.

Manchester Low Level Route (MLLR)

We have published a detailed report on the MLLR, shedding light on its appropriate usage, current utilisation, and proposals for further consideration.

The report is the culmination of extensive stakeholder engagement and exhaustive analysis, focusing on enhancing the safety and efficiency of this volume of airspace.

Amongst the key proposals for further consideration set out in the report are:

  • Re-classifying the airspace from Class D to Class G.
  • Increasing the MLLR's upper vertical limit from 1,300' to 1,500'.
  • Creating a Restricted Airspace structure south of the M56 to incorporate a speed restriction, additional constraints are also under review.
  • Partnering with the North West Local Airspace Infringement Team to reassess Visual Reference Points (VRPs), to aid in preventing airspace infringements and potentially expand the lateral limits of the airspace.

We will now explore these proposals further and continue to work closely with stakeholders, including local airports such as Manchester Airport and Liverpool Airport, as well as local General Aviation community. Through this engagement and additional analysis, the feasibility and potential impact of the proposals will be thoroughly scrutinised before reaching any conclusive decisions.

Contact Us
If you have any questions, comments or data relevant to the region we are currently reviewing, please contact us at airspace.classification@caa.co.uk

Refused access to airspace?
Report it to us using our FCS1522 - UK Airspace Access or Refusal of ATS Report form