text: how does someone (who's qualified in another country) become a licenced gas fitter,(and/or plumber) in america im a qualified brithish plumber, and a quaified and licenced brithish gas fitter. my wife is american and we're considering moving there (probably chicago). so i'm wondering how or would i be able to get licences, also is it normal in america for someone to do plumbing and gas fitting. is heating and cooling a seperate trade, or is it just the duct work a seperate trade (as in europe). i work for a plumbing construction co. you can apply as an apprentice and then take your state required boards to become certified.