The United Kingdom Maritime and Coastguard Agency has published Amendment 12 to its Guidance MSN 1874 (M+F), setting out the United Kingdom conformity assessment and type approval procedures for marine equipment.
Issued on 15 October 2026, the updated guidance restates the MCA's framework for ensuring equipment placed on board UK‑registered ships complies with applicable standards and international instruments.
The document, titled Guidance: MSN 1874 (M+F) Amendment 12 Marine Equipment – United Kingdom conformity assessment and type approval procedures for marine equipment, aims to maintain safety at sea and to prevent pollution of the marine environment through the application of recognised international requirements.
What the guidance covers
The guidance explains the procedures used in the United Kingdom for conformity assessment and for granting type approval to marine equipment intended for UK‑registered vessels. It is presented as the authoritative reference for how the MCA applies international instruments when assessing equipment for carriage and use on UK ships.
The MCA frames these procedures as central to both operational safety and environmental protection, emphasising that correct assessment and approval of equipment supports compliance with international obligations and national regulations.
Who should take note
Owners and operators of UK‑registered ships, manufacturers and suppliers of marine equipment, and bodies involved in conformity assessment and certification will find the guidance directly relevant to their activities. The document is intended to guide administrative and technical decisions relating to equipment acceptance for service aboard UK ships.
The MCA's publication is a procedural reference rather than new legislation. It consolidates the United Kingdom's approach to conformity assessment and type approval so that stakeholders know the standards and processes the MCA will apply when verifying equipment.
Amendment 12 is presented on the government's publication platform and should be consulted where questions arise about the approval status of equipment or the specific procedures the MCA follows. The MCA highlights the link between properly assessed equipment and the prevention of harm to seafarers and the marine environment.
Stakeholders are expected to use the guidance when preparing submissions for assessment or when seeking type approval, and to ensure that the equipment supplied to UK‑registered vessels is capable of meeting the standards referenced by the MCA. The document therefore functions as an operational manual for conformity and approval activity.
By setting out the assessment and approval framework explicitly, the MCA aims to provide certainty to manufacturers and ship operators about the expectations that will be applied in relation to international instruments. The measures reinforce the agency's regulatory role in overseeing equipment standards for ships registered under the United Kingdom flag.
The MCA's publication date for Amendment 12 is 15 October 2026. The source summary accompanying the release underscores the twin objectives of safety at sea and the prevention of marine pollution through consistent application of international instruments relating to equipment.
Key facts
- Title: Guidance: MSN 1874 (M+F) Amendment 12 Marine Equipment – United Kingdom conformity assessment and type approval procedures for marine equipment.
- Publisher: United Kingdom Maritime and Coastguard Agency.
- Published: 15 October 2026.
- Purpose: To set out UK conformity assessment and type approval procedures for equipment to be placed on board UK‑registered ships, supporting safety at sea and pollution prevention.
Readers seeking to determine how the MCA will assess particular items of marine equipment should refer directly to the published guidance for procedural detail and to confirm any documentary requirements or technical standards cited by the agency.
Editor profile