36. Where, in the case of any requirement as to structural fire precautions, or means of escape in case of fire, contained in building regulations, the power to dispense with or relax that requirement conferred by Article 15 (1) of the Building Regulations (Northern Ireland) Order 1979 is by virtue of paragraph (2) of that Article exercisable by a district council, then, before exercising that power in relation to any premises or proposed premises, the council shall consult the Authority.