I am in process of planning a new welding bed . I have the oxygen bottles standing up on old bed i had heard of states and companys that dont allow them to be laid down i would like to lay them down but if it is going to be an issue ill leave them up . there is alot more options with them laid on there side .What about Canadian regs i dont want to make the RCMP,s mad if i go back there to work as well.