We use necessary cookies to make our website work. We'd also like to use optional cookies to understand how you use it, and to help us improve it.

For more information, please read our cookie policy.



UK National Supervisory Authority report on costs exempt for RP1 (2012-14)

As part of the European SES performance scheme - member states can submit reports on costs exempt from cost-sharing. Below is the UK's report for RP!, which includes amounts for variances in Eurocontrol, spectrum and agency costs.

Close UK National Supervisory Authority report on costs exempt for RP1 (2012-14)

Licence modifications in respect of governance and ring-fencing

In our Ad Hoc Review of NATS-related risks in 2012/13, we found that the current arrangements for governance and ring-fencing may need to be strengthened to ensure that users are adequately protected from risks which arise outside of the regulated business.

We consulted on initial proposals to modify these arrangements, and have now published our decision to modify NERL's licence.

Responses to consultation:

Close Licence modifications in respect of governance and ring-fencing

Licence enforcement guidance & prioritisation principles

In May 2015, after consultation, we published Economic Licensing Enforcement Guidance covering our approach to enforcing the NATS Licence and airport economic licences under the Civil Aviation Act 2012. The guidance outlines the legal framework in which our work fits and informs stakeholders of the enforcement powers we have and how we will use them.

After consultation, we also published prioritisation principles that explain our approach in deciding which pieces of work to take forward in the areas of consumer protection, competition law and economic regulation.

In March 2024, we published a statement of policy on penalties to support our enforcement work under Chapter 1 of the TA00, as modified by section 10 of the Air Traffic Management and Unmanned Aircraft Act 2021. This statement followed a consultation in December 2023. Alongside this statement of policy, we also published a consultation response document.

Close Licence enforcement guidance & prioritisation principles

Economic regulation for Reference Period 2 under the Single European Sky (2015-2019)

Final UK-Ireland FAB Performance Plan submitted to European Commission

Post-consultation Performance Plan (NSA initial submission to State)

Transcript and presentation from Stakeholder Consultation meeting

Draft performance plan published for consultation

Consultancy reports

London Approach

UK Terminal Air Navigation Services (TANS)

Other

Close Economic regulation for Reference Period 2 under the Single European Sky (2015-2019)

Monitoring and enforcement of the NATS En Route plc (NERL) licence

Review of the 28 August 2023 NATS sub-system failure


Review of space based automatic dependent surveillance (ADS-B)

Reports following Project Palamon’s recommendations

Investigation under Section 34 of the Transport Act 2000: Project Palamon (February 2021)

We undertook an investigation (Project Palamon) under section 34 of the Transport Act 2000 (TA00) to consider alleged contraventions by NERL of certain statutory duties under sections 8(1)(c) and 8(1)(d) of the TA00 and certain licence conditions. This investigation followed complaints by Ryanair and Stansted Airport Limited about air traffic flow management delays experienced by airlines and passengers of Stansted and Luton airports.

In February 2021, we published our final decision (along with Annex 1) in relation to an investigation (Project Palamon) under section 34 of the Transport Act 2000. This investigation follows an earlier investigation conducted by the CAA addressing similar complaints brought by Ryanair and Stansted in 2016 in relation to NERL's performance (Project Oberon).

In our final decision we found that:

  • NERL contravened its statutory and Licence duties and obligations in the period January 2019 to March 2020 in relation to the provision of sufficient staffing resilience in the London Approach Service for users of Stansted and Luton airports; and
  • in relation to the other allegations raised as part of the complaints, including on airspace capacity, coding and discrimination, NERL has not contravened its statutory and Licence duties and obligations.

In making these findings, we took into account the very difficult circumstances faced by the aviation sector and the significant reduction in air traffic volumes, following the impact of the covid-19 pandemic. We also note that forecasts for recovery are highly uncertain and it appears likely it will take some time to reach traffic levels seen in 2018 and 2019. Given these circumstances, we consider it is not appropriate for us to take formal enforcement action, as the circumstances leading to the investigation are not currently occurring. Nonetheless, we make a number of recommendations that we expect NERL (and other stakeholders) to adopt in the future as they plan how to provide a resilient service when demand begins to recover, and in the longer term.

With the final decision we also published:

  • an annex to the final decision summarising the representations we received on the draft decision and setting out the CAA's way forward in response; and
  • non-confidential version of the responses we received to the Draft Decision.
Palamon documents
  • Final Decision (25 February 2021)
  • Final Decision Annex 1: (25 February 2021)
  • Non-Confidential versions of responses received to the Draft Decision (Published 25 February 2021):
  • Draft Decision (17 September 2021)
    • Alongside this Draft Decision, we also published a report on the assessment of NERL delays in the London Approach service by the Performance Review Unit of Eurocontrol. This report was produced at our request in support of the investigation.

Notice to NATS (En Route) plc under section 22(11) of the Transport Act 2000 (September 2020)

Under Conditions 5 and 6 of its licence NERL has to provide regulatory accounts and certain certificates relating to its financial and operational resources and its compliance with certain conditions of its licence by 31 July each year. Because of the uncertainty with traffic forecasts due to the Covid-19 crisis, NERL was unable to provide the accounts or certificates by 31 July 2020. NERL has submitted a plan to us to provide the accounts and certificates by 31 October 2020. On 28 September we served a notice on NERL of the licence breach, but said we do not intend to make a final order in relation of the breach at present.


Investigation under Section 34 of the Transport Act 2000: Project Palamon (October 2018)

We have opened an investigation (project Palamon) under section 34 of the Transport Act 2000 (TA00) to consider alleged contraventions by a licence holder of certain statutory duties under sections 8(1)(c) and 8(1)(d) of the TA00 and certain licence conditions.

At this stage, no assumption should be made about whether there has been any contravention.

Civil Aviation Authority Transport Act 2000 investigation - draft decision (September 2020) 

We have published our draft decision in relation to an investigation (Project Palamon) under section 34 of the Transport Act 2000 (TA00). We have considered alleged contraventions by NATS (En-Route) Plc (“NERL”) of certain statutory duties under the TA00 and certain conditions of its Air Traffic Services Licence. This investigation followed complaints by Ryanair and Stansted Airport Limited (STAL) about air traffic flow management delays experienced by airlines and passengers of Stansted and Luton airports.

This investigation follows an earlier investigation conducted by the CAA addressing similar complaints brought by Ryanair and STAL in 2016 in relation to NERL's performance (Project Oberon).

In our draft decision we provisionally find that:

  • In relation to the provision of sufficient staffing resilience in the London Approach Service to users of Stansted and Luton, NERL has contravened its duties in the period January 2019 to March 2020;
  • In relation to other parts of the investigation, including on airspace capacity, coding and discrimination, NERL has not contravened its duties and obligations.

This is a draft decision and we welcome the views of all stakeholders on our provisional findings by 19 October 2020 (to economicregulation@caa.co.uk). We will consider all the representations we receive carefully and intend to issue a final decision later this year.

In making these provisional findings, we have taken account of the very difficult circumstances faced by the aviation sector and that air traffic volumes have reduced significantly, following the impact of the Covid-19 pandemic.  We also note that forecasts for recovery are highly uncertain and it appears likely it will take some time to reach traffic levels seen in 2018 and 2019. These circumstances suggest that it will not be appropriate to take formal enforcement action, as the circumstances leading to the investigation are not currently occurring. Nonetheless, we make a number of recommendations that we expect NERL (and other stakeholders) to take into account in the future as they plan how to provide a resilient service when demand begins to recover, and in the longer term.

Alongside the draft decision we have also published a report on the assessment of NERL delays in the London Approach service by the Performance Review Unit of Eurocontrol. This report was produced at our request in support of the investigation. 


Notices to NATS (EN Route) plc under section 22(11) of the Transport Act 2000 (September 2018 and November 2019)

In July 2018, NERL submitted regulatory accounts with an audit report that did not comply with Condition 6 of its licence. Changes to audit guidance issued by the Institute of Chartered Accountants in England and Wales have meant that auditors are no longer able to express an opinion that meets the requirement under the Condition. NERL has informed the CAA that it will work with the CAA to modify Condition 6 such that a satisfactory audit report can be obtained. Condition 6 has now been modified. However, before that occurred, NERL submitted regulatory accounts that did not comply with Condition 6 of its licence in June 2019.


NATS (En Route) plc Condition 16 Code of practice (December 2016)


Investigation under Section 34 of the Transport Act 2000: Project Oberon

The CAA investigated an alleged breach of licence conditions by NERL's regarding its operation of the London Approach Service

The CAA found that while flight delays increased in 2016, it did not fail to take all reasonable steps to meet demand or discriminate against any party in delivering the London Approach Service. The CAA has made a number of recommendations to NERL to ensure it improves its contingency planning and the resilience of its operations in the future, and will monitor NERL's implementation and the effectiveness of the recommendations going forward.

Project Oberon recommended that we publish data to provide increased transparency on London Approach service quality. Three Oberon Report Indicators are included: NERL Attributable Delays by London Approach Function; NERL Average Delays per Arrival by London Approach Function; and All NERL Attributable Delays per Arrival into London Airports. We are publishing such data each quarter.

Starting with the indicators to June 2018, the format of the report has changed. As well as graphs and data showing delay attributable to NERL's London Approach service, the report also includes graphs and data showing all delay (including non-NERL attributable delay) for each of the London Approach airports. The report is produced by NERL using data and commentary provided by NERL.

Close Monitoring and enforcement of the NATS En Route plc (NERL) licence

Competition powers

Information on the CAA's concurrent powers with the Office of Fair Trading under the Competition Act 1998 and part 4 (market investigations) of the Enterprise Act 2002 is available on the  Competition powers page.

Close Competition powers

News from UK Civil Aviation Authority

  1. Snow your rights before jetting off this Christmas
  2. UK regulator unveils new AI strategy
  3. UK to bring aviation experts together for third legal summit