In article ,
"PeterK" writes:
Whilst Building Regulations are under discussion - does anyone know the
exact definition of "should" and "must" in this context? e.g Part P has 50
"shoulds" and 34 "musts". As I understand it a "must" clause is a legal
requirement but a "should" is best practice and provided a "solution" meets
the spirit/reason for the clause it may be acceptable.

I don't think Building Regs would claim to conform to RFC2119.
Part P in particular would have a real struggle claiming
conformance with anything logical.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]