Coding Surveys

Vessel coding application services

MECAL is a leading UK Certifying Authority for the survey and certification of commercial sailing & motor vessels & workboats up to 24M Load Line Length.

We have delegation from the majority of British Red Ensign Group Countries to apply the codes to vessels registered in their domain.

Our origins are from the Institute of Marine Engineering, Science & Technology & our surveyors & naval architects are qualified up to the highest professional level.
We understand the small commercial vessel & workboat sector & our surveyors are trained & experienced to apply regulations in a sensible & pragmatic way & are encouraged to engage with our clients to offer advice as well as apply the legal requirements in the way that they should be.

We have been a leading member of all the small commercial vessel & workboat code MCA working groups over the last 25 years & played a significant part in the drafting & application of those codes.

All surveys are controlled & monitored from our HQ Technical Department to ensure consistency of application of code requirements irrespective of location of the vessel & choice of surveyor.

We also provide our clients with technical specifications & detailed guidance on all aspects of the codes to enable preparation for survey & to avoid unnecessary wasting of survey time & revisits, thus assisting the client to control costs.

We have the capability to advise on all aspects of marine legislation & to carry out vessel assessments to any recognised national or international standard


Sailing & Motor charter vessels are covered by the original Blue, yellow, red codes which are still in force, plus the later standard MGN280 which provides an updated alternative technical standard.

The image above is the Solent fleet in action –Solent Rib Charter sister company to Commercial Rib Charter .

Offshore renewable Sector

Mecal has been at the forefront of the rapidly developing offshore renewable energy sector.

We were closely involved in drafting the rules for offshore energy support vessels in the Workboat Code & can offer consultancy, surveys & certification for all aspects of this specialised & rapidly advancing area.


We have a special interest in workboats & were one of the main contributors to the drafting of the Industry Standard Technical Working Group & the later Workboat Code Edition 2.

We are also on the 500GT Working Group which will extend our capabilities beyond 24M up to 500GT for workboats & cargo vessels operating in UK waters.

Mecal is also assisting the MCA in developing regulations in the emerging autonomous vessel sector

Jersey >15M Fishing Vessels

Mecal has delegation from Jersey Flag Administration to survey & certificate the largest of the Jersey fishing fleet.

wind farm Windcat workboat