What Does the Coastguard Do?
What Does the Coastguard Do? — HM Coastguard Explained
When something goes wrong at sea in the UK, HM Coastguard is the organisation you call. But most people have only a vague idea of what they actually do, how they operate, and what the difference is between the Coastguard and the RNLI. Here is the clear, plain English explanation.
What Is HM Coastguard?
HM Coastguard is an agency of the Maritime and Coastguard Agency — part of the UK government’s Department for Transport. It is responsible for coordinating maritime search and rescue around the UK coast and in the waters for which the UK has international responsibility.
The MCA is responsible for implementing British and international maritime law and safety policy. It works to prevent the loss of lives at sea and to prevent marine pollution. Kayarchy
Unlike the RNLI which is an independent charity, HM Coastguard is a government agency. It does not go out on rescues itself in most cases — it coordinates them. It is the control centre that mobilises the assets — RNLI lifeboats, coastguard helicopters, Royal Navy vessels, commercial vessels — and directs the response.
What HM Coastguard Actually Does
Monitors Channel 16 — HM Coastguard maintains 24-hour monitoring of VHF Channel 16 from stations around the UK coast. Every Mayday call, Pan Pan call, and safety announcement is received and acted upon.
Coordinates search and rescue — when a distress alert is received, Coastguard Maritime Rescue Coordination Centres assess the situation and mobilise the appropriate response. This includes RNLI lifeboats, coastguard helicopters, commercial vessels in the area, and any other appropriate assets.
Operates search and rescue helicopters — HM Coastguard operates a fleet of search and rescue helicopters from bases around the UK. These respond to offshore emergencies, cliff rescues, and any situation where helicopter capability is needed. The MCA has been responsible for land-based search and rescue helicopter operations since 2015. Kayarchy
Manages maritime safety information — broadcasting weather warnings, navigation warnings, and safety information to vessels at sea through NAVTEX and VHF services.
Cliff and coastal rescue — HM Coastguard has teams of volunteer Coastguard Rescue Officers around the UK who respond to cliff rescues, mudflat rescues, and other coastal incidents where specialist rope rescue or coastal access expertise is needed.
The Coastguard vs the RNLI — What Is the Difference?
This confuses a lot of people. Here is the simple explanation.
HM Coastguard — government agency. Coordinates rescues. Operates helicopters. Monitors Channel 16. Coastguard Rescue Officers handle cliff and coastal rescues.
RNLI — independent charity. Provides lifeboat crews. Goes out on rescues. Funded entirely by donations.
When you call 999 for the Coastguard at sea, HM Coastguard receives the call, assesses the situation, and mobilises the RNLI along with any other appropriate resources. The Coastguard is the coordinator. The RNLI are the people who get in the boat.
They work together seamlessly. From the perspective of someone in difficulty at sea — call 999 and ask for the Coastguard. What happens next is a coordinated response involving both.
When to Call the Coastguard
Call 999 and ask for the Coastguard in any maritime emergency — person overboard, sinking vessel, fire on board, serious medical emergency at sea, cliff rescue, or anyone in difficulty in the water.
Transmit on VHF Channel 16 for any maritime distress — this alerts the Coastguard and all vessels in radio range simultaneously.
For non-emergency safety concerns — a vessel that has not returned as expected, a concern about someone at the coast — the non-emergency number is 01326 317575.
False Alarms — The Cost
A Coastguard helicopter costs approximately £8,000 per hour to operate. A lifeboat launch costs the RNLI hundreds of pounds in fuel, maintenance, and crew time. False alarms — including accidental EPIRB activations from unregistered beacons — divert these resources from genuine emergencies.
Register your EPIRB and PLB. Test them correctly using the self-test function only. If you accidentally activate a distress beacon — call the Coastguard immediately to cancel the response.
FAQs
Is the Coastguard the same as the police?
No. HM Coastguard is a separate agency focused specifically on maritime and coastal safety. They do work with police on some coastal incidents but they are entirely separate organisations.
Does the Coastguard charge for rescues?
No. HM Coastguard and RNLI rescues are free of charge. There have been occasional calls to introduce charges for rescues deemed avoidable — these have been consistently rejected on the grounds that fear of charges would deter people from calling for help when they genuinely need it.
What number do I call for the Coastguard?
999 in any emergency — say you need the Coastguard. On VHF radio — Channel 16. Non-emergency — 01326 317575.
In any maritime emergency call 999 and ask for the Coastguard, or transmit on VHF Channel 16. Register your EPIRB and PLB at beaconregistration.admiralty.co.uk.
