Except in so far as buildings regulations provide otherwise, the substantive requirements of building regulations—
In so far as building regulations so provide as regards any of the substantive requirements of building regulations, those requirements—
even if those requirements do not apply there in the case of work carried out or proposed to be carried out otherwise than by or on behalf of a Crown authority or, in the case of continuing requirements, do not apply there to persons other than Crown authorities.
Except in so far as building regulations provide otherwise, building regulations and the enactments relating to building regulations—
Section 38 above and any building regulations made by virtue of subsection (1) of that section apply in relation to duties imposed by building regulations in their application in accordance with subsections (1) to (3) above.
Where—
and no application is necessary for the exercise of any such powers by virtue of this subsection.
In relation to continuing requirements, references in subsection (5) above to section 8 above are references to it as modified by section 2(6) above.
For the purposes of subsection (5) above, work carried out or proposed to be carried out by or on behalf of a government department acting for another Crown authority shall be treated as carried out or proposed to be carried out by or on behalf of that department (and not by or on behalf of the other Crown authority).
In this section—
"continuing requirement" means a continuing requirement of building regulations imposed by virtue of section 2(1) or (2)(a) or (b) above;
"Crown authority" means the Crown Estate Commissioners, a Minister of the Crown, a government department, any other person or body whose functions are performed on behalf of the crown (not being a person or body whose functions are performed on behalf of Her Majesty in her private capacity), or a person acting in right of the Duchy of Lancaster or the Duchy of Cornwall;
"Crown building" means a building in which there is a Crown interest or a Duchy interest;
"Crown interest" means an interest belonging to Her Majesty in right of the Crown, or belonging to a government department, or held in trust for Her Majesty for the purposes of a government department;
"Duchy interest" means an interest belonging to Her Majesty in right of the Duchy of Lancaster, or belonging to the Duchy of Cornwall.
If any question arises under this section as to which Crown authority is entitled to exercise any such powers as are mentioned in subsection (5) above, that question shall be referred to the Treasury, whose decision is final.
This section, with any necessary modifications, applies in relation to the making of a material change in the use of a building within the meaning of building regulations made for the purposes of paragraph 8(1)(e) of Schedule 1 to this Act as it applies in relation to the carrying out of work.