Section 275. Special laws and local ordinances

The requirements of sections
  two  hundred and seventy to two hundred and seventy-four, inclusive, are
  not in substitution for the requirements of any general or  special  law
  or   local   ordinance   relating  to  the  construction,  equipment  or
  maintenance of buildings, but the provisions of such general and special
  laws and local ordinances shall be observed as well as the provisions of
  said sections. The provisions of sections two hundred and seventy to two
  hundred and seventy-four,  inclusive,  shall  supersede  all  provisions
  inconsistent  therewith  in  any special law or local ordinance, and any
  provision of law or ordinance  which  gives  power  to  any  officer  to
  establish requirements inconsistent with the provisions of such sections
  or the rules adopted by the board under the provisions of this chapter.