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UK on course to lead world in hydrogen fuel as aviation regulator expands Hydrogen Challenge

The UK Civil Aviation Authority has announced the expansion and extension of the Hydrogen Challenge by launching a second round.

Project 601 is a programme of work at Heathrow Airport to develop an airside ‘test-bed’ for trialling innovative technologies and processes to support the transition to net zero.

Last updated: 03 February 2025

Responsibilities of ERCP

General information of ERCP work.

In February 2014, we granted licences under the CAA12 to the operators of Heathrow Airport and Gatwick Airport which came into force on 1 April 2014.

Last updated: 27 March 2026

Third Runway Expansion Plan At London Heathrow Airport Cost Recovery (PDF)

Last updated: 13 August 2025

CAA H7 871 Heathrow Response To CAA’S Proposals On The Regulatory Treatment Of Early Costs Of Capacity At Heathrow Airport (Public) (PDF)

Based on these tables, this results in a real cost of new debt of 5.67% in 9 Economic regulation of Heathrow Airport Limited: H7 Initial Proposals Appendices, page 53 https://www.caa.co.uk/publication/download/19166 10 2025 and 4.60% in 2026.

Last updated: 24 April 2026

Consumer Challenge Board (CCB)

Information about the H7 Consumer Challenge Board (CCB).

Heathrow Airport Heathrow Airport (HAL) is one of the busiest airports in the world, handling over 75 million passengers per year.

20260518 Letter To S Chadha Economic Regulation Of Heathrow Airport Draft Decision On The Regulatory Treatment Of Early Costs Of Capacity Expansion At Heathrow (PDF)

Chadha 11, Westferry Circus Canary Wharf, London, E14 4HD Dear Selina, Economic regulation of Heathrow Airport: Draft Decision on the Regulatory Treatment of Early Costs of Capacity Expansion at Heathrow Airport (CAP3238) International Airlines Group, S.A.

Last updated: 30 July 2026

CAA H7 891 Heathrow's Response To CAA’S Draft Decision On The Regulatory Treatment Of Early Costs Of Capacity At Heathrow Airport PUBLIC (PDF)

1 Heathrow Public Heathrow response to CAA’s draft decision on the regulatory treatment of early costs of capacity at Heathrow airport (CAP3238) CAA-H7-891 Date: 18 May 2026 Prepared by: Heathrow Airport Limited Status: Non-Confidential 2 Heathrow Public Contents 1.

Last updated: 29 July 2026

Correspondence with airlines and airports

19 May 2026, Letter to industry on fuel shortage and cancellations 19 July 2024, Guidance to Industry: IT outage on 19 July 2024 25 June 2024, Guidance to Industry: Manchester Airport power cut on 23 June 2024 30 August 2023, Guidance to Industry: ATC incident 13 March 2023, Letter to Aviation Industry: Summer preparedness, cooperation and communication 21 July 2022, Joint letter to airlines: Cancellations and reimbursements 15 July 2022, Guidance to industry: Heathrow capacity limits 14 July 2022, Joint letter to industry: Communication with passengers 14 June 2022, Joint letter to industry: Disruption 9 June 2022, Letter to industry: Providing assistance to disabled and less mobile passengers April 2022 Disruption letter to Airlines April 2022 Disruption letter to Airports

Last updated: 31 July 2026

CAA To Heathrow Airport Ltd 2022 Aeronautical Charges Consultation Obligations Aug 2021 (PDF)

Consumers and Markets Group Civil Aviation Authority 5th Floor, 11 Westferry London E14 4HD www.caa.co.uk Telephone +44 330 1383142 andrew.walker@caa.co.uk Helen Stokes, Head of Legal, Regulation and Operations, Heathrow Airport Ltd The Compass Centre, Nelson Road, Hounslow, Middlesex.

Last updated: 01 November 2021

Newell Response To CAP3201 – Proposals On The Regulatory Treatment Of Early Costs Of Capacity Expansion At Heathrow Airport (PDF)

This letter sets out International Airlines Group, S.A.’s (IAG) response to the Civil Aviation Authority’s (CAA) consultation on the proposed regulatory treatment of early costs associated with capacity expansion at Heathrow Airport (CAP3201).