The IEE regs or to give it it proper title now BS7671 is now mandatory. Good old Part P has taken care of that one BS 7671 is a requirement of the Building regs on Domestic Work.
Alan,
Don't forget that we discussed this at length.
The Building Regs. do not refer to BS7671 at all, so there is no legal requirement to comply as far as residential wiring is concerned. http://www.opsi.gov.uk/si/si2004/20043210.htm
