it depends on the individual, i'm time served as a plumber then trained in gas, i agree i made mistakes as an apprentice and learned slowly and properly, this skill allowed me to diversify into gas and oil as i had the skill set of learning behind me, when i did my gas first time i got sent on a one week training course for ACOPS, after one weeks trainign i sat and passed my gas exams, then i started on gas work, quite scary TBH, but i worked very hard and was totally comitted to expanding my skill and not injuring anyone, so to the people who join the course i run now which is 28 weeks full time for bpec, if they have the right attitude and aptitude how can we say they cant learn the basics in 6 months to ensure they are safe all the time, then they get a job and learn how to repair boilers along side basic service work, it is ridiculous to suggest a time served electronics engineer cannot learn gas, there are plentty of guys who have yrs of DIY experience who have a totally commited attitude to safety who can work through the course then go self employed and learn slowly and safely, and yes there are some who join the courses and all they want to know is how to work the system to get what they can, but i have met many many time served tradesmen in lots of different trades who have a disgraceful attitude to work and only care about what they can get, there are several Glasgow firms who i wont name here who have their gas guys doing 12+ jobs a day on a salary, but if the 12 dont get competed they lose money, this is disgraceful and i would never work there, so what does it say about the long term time served guys who do work there, and when they come in for their re-assessment tell you what they have done and earned over the yrs and it is a disgrace that they need to prove competance every 5 yrs , then when they start the assessments they havent got a scooby what they should be doing, " i never gas rate, cause i only install i dont repair", "i cant remember how to purge, it is never required where i work" "you dont need to calculate gas flow, 22mm from the meter is always enough" ok i appreciate and it is fair they need refresher training on these items and tests every 5 yrs, but i have trained a few guys on the foundation courses who are making a very good living doing gas and why shouldnt they, as i said im time served in plumbing and only did 1 week to get into gas, surely i should be banned as well, its the same with my oil, basic traing added to all my experience got me there