There are requirements for SCANNER survey data and quality assurance procedures, the independent auditor for which is currently TRL. If you are looking to develop a machine capable of SCANNER surveys, you may wish to review further information on the accreditation procedure.
If you are looking for a contractor to carry out SCANNER surveys on your behalf, you may wish to check the list of current SCANNER accredited machines and their certificates.
There is an accreditation procedure to become a visual survey inspector. This includes passing a test organised by an accredited Visual Survey Assessor. A list of current accredited visual survey inspectors is accessible on this website.