15. Application to the Crown.

As from a day to be appointed, the following provisions have effect1. Except in so far as building regulations2 provide otherwise, the substantive requirements3 of building regulations:


    (1)     apply in relation to work carried out4 or proposed to be carried out by or on behalf of a Crown authority5 (whether or not in relation to a Crown building6) as they would apply if the person by or on behalf of whom the work was or is to be carried out were not a Crown authority7; and


    (2)     so far as they consist of continuing requirements8, apply to Crown authorities