As stated in the Ministry of Defence BR 3939 – HULL PRESERVATION PROCESSES

Coating Applicator – All personnel involved with surface preparation and coating application must be suitably qualified. The leading training bodies in the UK are Train the painter. Training shall include all surface preparation and paint application techniques and procedures appropriate to the surface preparation and coating materials used.

Supervisor: The competent person identified and recorded by the contractor as being responsible for the supervision of the implementation of corrosion protection works including health and safety. A Supervisor shall hold certification as an Operative or shall be an Applicator trainer. A Supervisor shall also have successfully completed the Supervisor module.

Coating Inspector – Documentation shall be maintained verifying that only qualified paint inspectors are used for inspecting preservation work. Training shall include all techniques and procedures appropriate to inspecting the surface preparation and coating application being used.