Civil Aviation Authority
UK regulator overseeing civil aviation safety and airspace.
Last refreshed: 1 May 2026
What role did the CAA play in the UK's space-manufactured drugs regulatory pathway?
Timeline for Civil Aviation Authority
Mentioned in: MCA drops the word sandbox from trials
Autonomous Systems: Land & SeaWhat does the Civil Aviation Authority regulate in the UK?
Why was the CAA involved in the UK space-pharma regulatory pathway?
Is the CAA the same as EASA after Brexit?
Background
The Civil Aviation Authority (CAA) is the UK's independent aviation regulator, established by the Civil Aviation Act 1972. Its REMIT covers the full breadth of British aviation: certifying aircraft and airlines for airworthiness and air operator licensing, managing airspace classification and drone integration, overseeing airport economic regulation, enforcing consumer protection rules for passengers, and investigating aviation safety incidents in conjunction with the Air Accidents Investigation Branch. The CAA regulates approximately 2,500 licensed aerodromes and UK-registered aircraft and licences several hundred air operators. As the UK's designated national supervisory authority following Brexit, it took on functions previously handled jointly with EASA (the European Union Aviation Safety Agency), including issuing its own UK-specific aircraft type certificates.
The CAA's involvement in space regulation expanded materially with the Space Industry Act 2018, which gave it licensing responsibilities for orbital and sub-orbital spaceflight from UK territory. In March 2026, the CAA was one of four agencies, alongside the UK Space Agency, the MHRA, and the Regulatory Innovation Office, that jointly published a pathway for space-manufactured pharmaceutical products . The CAA's specific contribution to the pathway is the launch and re-entry licensing framework that a spacecraft carrying pharmaceutical payloads must satisfy before it can operate commercially from or through UK-managed airspace.
The space-pharma pathway is a minor slice of the CAA's workload, but it is illustrative of a structural shift in UK regulation: post-Brexit, the CAA has had to build domestic equivalents to EASA frameworks in aviation, and the same domestic-first pattern is now extending to emerging sectors like commercial spaceflight. The CAA's role in the joint pathway reflects the broader UK regulatory bet: that British agencies can write commercial frameworks faster than their European counterparts, creating a jurisdictional advantage for the companies named in those documents.