as far as i know on british waterways owned canals and rivers the only thing you need is a day permit which is bought from them selves b/w at watford main office or by certain canal and river chandlers ,it used to cost going back a few years about £4.50p for the day or about £7 .oop for a weeks permit without the use of locks , this was also restricted to 4 hp outboards on canals and 10 hp on rivers or tidal sections owned by b/w.but the strange fact is that if you dont have one and you get caught by a b/w inspector that apparently dont work week ends you just pay double the day permit cost .this also applies if you have a rowing boat ,for anything other than a day boat ie cabin cruiser you have to have a safety certificate and the rules are very stringent ie correct fuel piping up to a certain standard at one time which dident even exist except in the aircraft industry though they have changed that one now and hose couplings have to be crimped. basicaly a load of bollacks for the engine side of things ,
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