I totally agree anyone doing work for the public should be suitably qualified. Don't think the surgeon analogy is appropriate - I only want to operate on myself :) . But it would be good not to be in such a gray area (got to be competent but no definition of competency for DIY). I'm certainly...
Followed up on some of the info posted above (thanks guys). The sticking point seems to be 'a period of work/training within the industry'. Not really practical when all I want to do is prove that I'm competent to do my own stuff. The supposed reason for all these certifications is safety but...
Over the years I've successfully completed quite a number of DIY projects inc plumbing ones (to the extent that I use end-feed solder joints, etc). I've also followed the whole thing about being 'competent' to do gas work and fully appreciate the necessity to complete such work in a safe manner...