Section 19-503. Rules and regulations

a. The commission shall promulgate
  such rules and regulations as are necessary to  exercise  the  authority
  conferred upon it by the charter and to implement the provisions of this
  chapter.
    b.  No rule or regulation promulgated subsequent to the effective date
  of this local law may be inconsistent with or supersede any provision of
  this local law and any rule or regulation in  effect  on  the  effective
  date  of  this local law that is inconsistent with any provision of this
  local law shall be of no further force and effect.