Category C First Aid Kit: Contents, Uses and UK Requirements

When an emergency happens at sea, having the right medical supplies onboard can make a significant difference. A minor cut, burn, seasickness episode or more serious injury may require prompt attention, particularly when a vessel is some distance from shore. For boat owners, fishing crews, yacht operators and commercial marine professionals, suitable medical stores are an important part of onboard safety.

A Category C First Aid Kit provides essential medical supplies for specific vessel categories and survival craft. However, choosing the right kit involves more than checking its contents. Vessel operators also need to understand the applicable Maritime and Coastguard Agency (MCA) requirements, consider the risks associated with their operations and maintain their supplies properly.

This guide explains what a Category C kit contains, where it is used and what UK vessel operators should consider when selecting and maintaining marine medical stores.

What Is a Category C First Aid Kit?

A Category C First Aid Kit is a designated set of medical supplies intended to provide immediate care for injuries and common medical needs in circumstances where further treatment may not be immediately available.

Under UK MCA guidance on ships' medical stores, Category C stores are required for certain vessels and survival craft, including lifeboats and liferafts. The precise requirements depend on the vessel's classification and applicable regulations.

Unlike a standard household first aid kit, a marine medical kit is intended for use in a maritime environment. It can include supplies for wound care, burns, minor injuries, resuscitation and certain common medical conditions.

The purpose is to help a trained crew member provide initial assistance until further medical support is available.

Category C First Aid Kit Contents: What Should Be Included?

The contents of a Category C kit are intended to address a range of onboard medical situations. The exact inventory can vary according to the approved kit specification, so buyers should always check the manufacturer's contents list.

Dressings and Bandages

Cuts, abrasions and other injuries can occur during fishing, sailing, maintenance and routine vessel operations. Wound-care supplies help protect injuries and control bleeding. A typical kit may contain sterile dressings in different sizes, paraffin gauze dressings, triangular bandages, adhesive elastic bandages, sterile plasters and adhesive sutures.

These supplies help cover wounds, support injured areas and protect damaged skin while further care is arranged.

Wound Cleaning and Infection Prevention

Cleaning and protecting an injury is an important part of basic first aid. Depending on the kit specification, supplies may include antiseptic cream, antiseptic wipes and disposable gloves. These products help crew members follow basic hygiene precautions when treating another person. Gloves also reduce direct contact with blood and other bodily fluids.

Burn Treatment Supplies

Hot equipment, cooking facilities, engine components and other onboard hazards can cause burns. A Category C kit may contain a burn bag and sterile paraffin gauze dressings to help protect affected areas. Crew members should follow appropriate first aid guidance and seek medical advice for serious burns rather than relying on the contents of the kit alone.

Emergency and Resuscitation Equipment

Some kits include a pocket resuscitation mask, scissors and safety pins. These supplies support basic emergency response and help crew members carry out first aid more effectively. Training is important because having equipment onboard does not automatically mean that crew members know how to use it correctly.

Medicines and Medical Preparations

Depending on the approved configuration, a Category C kit may include medicines and preparations for common medical needs, such as anti-seasickness tablets, anti-diarrhoea tablets, pain relief medication and other specified medical preparations.

Medicines should only be administered by appropriately trained or authorised individuals, following the relevant instructions and medical guidance. Vessel operators should also check expiry dates and storage conditions.

Who Needs a Category C First Aid Kit in the UK?

Not every boat has the same medical stores requirements. The appropriate provisions depend on the vessel's classification, operating area and applicable regulations.

Category C medical stores are particularly relevant to lifeboats and liferafts, which are required to carry appropriate medical stores under applicable MCA guidance. Certain harbour vessels and smaller craft may also fall within Category C requirements. Commercial vessel operators and fishing vessel crews should check the medical provisions applicable to their vessel and operating conditions.

Yacht owners and sailing enthusiasts should also consider their onboard medical arrangements. Although the requirements can differ between commercial and recreational vessels, carrying suitable first aid supplies is an important part of preparing for injuries and unexpected situations at sea.

It is important to distinguish between a vessel's operating area and its medical stores category. The MCA defines vessel categories in its guidance, so operators should not select a kit based only on distance from shore.

UK Requirements for Category C Medical Stores

The Maritime and Coastguard Agency is responsible for UK maritime safety guidance and the relevant requirements for ships' medical stores.

A key reference is MSN 1905 (M+F), Amendment 5, published in August 2026. It sets out minimum medical stores requirements under the Merchant Shipping and Fishing Vessels (Medical Stores) Regulations. Vessel owners and operators should refer to the latest version when checking their obligations.

The notice explains the medical stores requirements for Category A, B and C vessels, along with additional recommendations and guidance. Before purchasing a kit, operators should identify their vessel's correct category, check the relevant medical stores schedule and confirm that the selected kit meets the required specification.

Product documentation and approval details are also important. A kit labelled Category C should not automatically be assumed to meet every vessel's requirements. Buyers should verify its suitability and supporting documentation before making a purchase.

The MCA also recommends that the medical stores checklist be reviewed at least annually by a competent person. This inspection should confirm that supplies are complete, medicines remain in good condition and items are within their expiry dates. Fishing vessel operators should also consult the relevant fishing vessel guidance, which addresses medical care, crew training and medical stores requirements.

How to Choose the Right Category C First Aid Kit

Selecting suitable medical stores requires more than comparing prices or choosing a kit with the largest number of items. The kit must be appropriate for the vessel and its intended use.

Start by checking the vessel's operating category and applicable medical stores requirements. Review the product's approval status, supporting documentation and complete contents list. This helps establish whether the kit is suitable for the vessel rather than relying only on its product name.

It is also worth considering the number of people onboard and the nature of vessel operations. Fishing activities, machinery maintenance and regular passenger operations can present different medical risks. Packaging and storage arrangements matter too, as supplies need protection from moisture and should remain accessible during an emergency.

Finally, consider how easily used or expired items can be replaced. A reliable supplier should provide clear product information and help buyers understand the kit's intended application.

How to Store and Maintain Marine First Aid Supplies

Even a correctly selected kit may become less useful if its contents are damaged, missing or out of date. Regular inspection is therefore an important part of onboard safety management.

Store the kit in a clearly identified and accessible location where crew members can reach it quickly. Protect medical supplies from water exposure, dampness and unsuitable temperatures. Medicines and sterile products should be checked regularly, with expired or damaged items replaced promptly.

Maintaining an inventory also helps vessel operators identify missing supplies and arrange replenishment after the kit has been used. Crew members should know where the kit is stored and understand the basic procedures for accessing and using its contents.

The MCA's medical stores guidance recommends an annual review by a competent person. However, operators should also check their supplies whenever items are used, damaged or suspected to be unsuitable.

Other Marine Safety Equipment Every Vessel Should Consider

A first aid kit is only one part of an effective onboard safety arrangement. Boat owners and marine operators should also review their wider marine safety equipment according to vessel type, operating area and applicable requirements.

Lifejackets and personal flotation devices help protect people in the event of a fall overboard. Liferafts and lifebuoys provide essential support during abandonment and man-overboard situations. Fire extinguishers, distress flares and emergency signalling devices help crews respond to other onboard emergencies.

Communication equipment, including VHF radios, is equally important because it allows crews to contact coastguard services and other vessels when assistance is needed. Emergency lighting and waterproof torches can also improve visibility when normal lighting is unavailable.

The exact equipment required will vary. Operators should consult the relevant vessel code and safety guidance rather than treating a general checklist as a universal legal requirement.

Combining appropriate medical stores with other essential marine safety supplies helps create a more complete approach to onboard emergency preparedness.

Common Mistakes to Avoid When Managing Onboard First Aid Kits

Some common oversights can affect the availability and usefulness of medical supplies when they are needed. One mistake is assuming that a household first aid kit can replace the medical stores required for a vessel. General-purpose kits may not meet the relevant maritime specification.

Another issue is overlooking expiry dates or failing to replenish supplies after use. A kit that has been opened may no longer contain everything required. Storing medical supplies in an inaccessible location can also delay treatment during an emergency.

Vessel operators should avoid choosing a kit without checking its suitability, approval information and contents. They should also ensure that crew members understand basic first aid procedures and know where onboard medical supplies are kept.

How ADEC Marine Supports Onboard Safety

Choosing suitable medical stores is an important consideration for anyone responsible for vessel safety. ADEC Marine supplies marine safety products, including a Category C First Aid Kit intended for relevant Category C vessels, lifeboats and liferafts.

The kit listed by ADEC Marine includes medical supplies such as dressings, bandages, antiseptic products, disposable gloves, a pocket resuscitation mask, a burn bag and medicines for common medical needs. Its product listing also states that it holds UK MCA and Lloyd's Register of Shipping Type Approval for Category C vessels. Buyers should review the current product documentation and confirm suitability for their vessel before ordering.

When selecting medical stores, it is important to consider the vessel's requirements, the kit's contents and the documentation supplied. ADEC Marine offers an option for UK boat owners and marine operators looking for suitable medical stores and other essential marine safety products.

Conclusion

Having suitable medical supplies onboard is an important part of responsible vessel operation. A well-maintained Category C First Aid Kit can help crew members respond to common injuries and medical needs while further assistance is arranged.

UK boat owners, fishing vessel crews and commercial operators should check the relevant MCA requirements, confirm that their medical stores are suitable and inspect their contents regularly. It is equally important to consider wider marine safety equipment and ensure that crew members understand how to respond to emergencies.

For marine medical stores and other essential onboard safety products, ADEC Marine offers options for UK vessel operators looking to support their safety and preparedness requirements.