Section 471. Rules

The board of standards and appeals shall make rules to
  carry out the provisions of  this  article.  Such  rules  shall  be  the
  minimum  standard  required and shall supersede any special law or local
  ordinance inconsistent therewith, and no  local  ordinance  inconsistent
  therewith  shall  be adopted, but nothing herein contained shall prevent
  the  enactment  by  local  ordinance  of  additional  requirements   and
  restrictions.   Such rules of the board of standards and appeals for the
  construction, equipment and maintenance of places  of  public  assembly,
  shall  be subject to the procedure set forth in sections twenty-nine and
  thirty of this chapter, may be limited in their application  to  certain
  classes of buildings or to the conditions under which they are operated,
  and  some  or all of them may apply only to those buildings or places to
  be constructed, maintained or conducted in the future. Such rules  shall
  have  the  force and effect of law and be enforced in the same manner as
  the provisions of this chapter.