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.
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.