I would agree with you on that point. But then the point BAS is attempting to make is not of the real world.
It is absolutely of the real world - it is based entirely on the real words written in the real law.
Then you must accept that the point in law which you are slavishly adhering to is a piece of written nonsense. If you don't think it is, please show me where in BS7671:2001 (or 2008) that zones are defined ' for a bath or shower'. It is you, not I, who is taking the literal word of the law and as such you must accept responsibility for your belief in something which does not make sense.
I know you've repeated this argument across several forums so you stand to have a lot of egg on your chin, but that should not get in the way of fact.
If ever you are in court charged with something, try claiming that believing what the law says is just pedantry.
Here you go again, body swerving and making things up. What I said is that it is
you who is arguing points of pedantry based on a wholly flawed understanding of what is
actually written in the law that
you have quoted. There are no Zones defined 'for a bath or shower' in BS7671:2001. It is a fact. If you can show where the wording exists, I will happily accept your argument.
What you can't do BAS (but which you always do) is slavishly adhere word for word to make one argument and then 'fill in the gaps' to make another when it suits.
Zone 1 is limited by... the vertical plane(s) circumscribing the bath tub or shower basin...
Limited by a vertical plane does not mean the same as 'for a bath'. There are no Zones for a bath or shower. There are Zones defined for a 'location containing a bath or shower' but that is a different thing altogether. A zone FOR a bath means just that - FOR a bath.
Maybe the words in the SI don't make sense to you, but they seem to make sense to everybody else, and they are perfectly logical and consistent with the definitions in BS 7671:2001.
And they shouldn't mean anything to you either as they don't mean anything meaningful at all.