PRO is American.As previously said, if BS 7671 (or whatever) were "incorporated into UK law", then it would probably be available/accessible free-of-charge. ... but it isn't, so it isn't
The case they are fighting is to do with standards incorporated into US Federal legislation.
If they win it would not make BS 7671 available, even if that were incorporated into any UK laws. We already have standards incorporated into our laws which are not available FOC.....