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  • Coastal Skipper / Yachtmaster® TheoryComing SoonRYA course for advanced navigation and passage planning, secondary ports, tidal streams, and offshore weather.
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  • Why do we have tides?Have you ever wondered what causes the tides? Check out this video, which introduces the forces that create the tides we experience on Earth.
  • What causes our weather?A video introducing the drivers behind our weather, part of our RYA Day Skipper & RYA Coastal Skipper / Yachtmaster® Offshore theory courses.
  • Buoyage FlashcardsFlashcards designed to help remember the buoys in the IALA system. If you want to learn them in detail, our module ‘Getting in and out of harbour‘, covers the IALA system and different buoys used.
  • Interactive Rule Book (COLREGs / IRPCS)Whether you’re a novice sailor or a seasoned skipper, we can help you navigate the IRPCS confidently and clearly. Our easy-to-use, easy-to-understand, plain English rule book with helpful interpretations of what each rule means.
  • The Salty Sea BlogFrom salty old sea dogs to fresh-faced deckhands, this blog is for anyone who finds peace, adventure, and a bit of mischief on the water. So hoist the main, set your course, and let’s sail into the stories, lessons, and musings that make life on the sea so irresistible.
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Published:25th October 202423rd October 2026 Last Updated:23rd October 2026
General Nautical Terminology | Nautical Topics | Organisation | Safety

Maritime and Coastguard Agency (MCA)

The United Kingdom executive agency responsible for maritime safety, seafarer and ship standards, coastguard coordination and marine pollution functions.

The MCA is an executive agency of the Department for Transport. Its work includes HM Coastguard’s continuous maritime and coastal search-and-rescue coordination, ship survey and inspection, seafarer certification, administration of the UK Ship Register, maritime guidance and support for pollution prevention and response.

The agency implements and enforces relevant UK requirements and international obligations within its remit, while other bodies retain responsibilities such as independent lifeboat provision, local harbour control and accident investigation. The precise regulator or responder therefore depends on the matter and location.

Key Responsibilities of the MCA

  • Search and Rescue (SAR): The MCA coordinates search and rescue operations through HM Coastguard (Her Majesty’s Coastguard), assisting distressed people at sea and around the UK coastline.
  • Maritime Safety: The MCA sets safety standards for UK-registered vessels, ensuring compliance with national and international regulations, including regular inspections and certifications of ships.
  • Environmental Protection: The MCA enforces regulations to prevent marine pollution and responds to pollution incidents, such as oil spills, to protect the marine environment.
  • Maritime Legislation and Enforcement: The MCA enforces maritime laws related to ship safety, crew welfare, and pollution prevention. It also investigates incidents and takes appropriate enforcement actions.
  • Vessel and Seafarer Certification: The MCA issues certificates for vessels and seafarers, including qualifications for UK-registered mariners, ensuring they meet safety and competency standards.
  • Maritime Education and Training: The MCA is involved in setting and maintaining standards for maritime training and education in the UK, ensuring the competency of those who work at sea.

MCA and the General Lighthouse Authorities (GLAs)

Headquarters and Structure

  • Headquarters: The MCA is headquartered in Southampton, England.
  • HM Coastguard: The search and rescue branch of the MCA, with control centres and stations around the UK coastline.
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