All well and good , but it wont stop Mr average looking up how to fix his boiler or whatever they want to mess around with, the information is out there, the necessary parts are sold to whoever has the cash no questions asked, Its all well and good quoting this rule and that but most people don't know or care ! We all know quite a few people that do gas repairs, install there own boilers/fires or whatever and has long has they can buy what they want it will never be stopped, go into any DIY outlet, Plumbers, merchants, internet sites, gas products are available to everyone, no one askes what experience or qualifications do you have , just give me your money ! and to repeat it will never be stopped, because they say it would be restrictive practice,