Section 101. Construction of terms

Whenever  the term public service
  commission, or board of rapid transit railroad commissioners, or transit
  construction commissioner, or transit commission,  occurs  in  any  law,
  contract  or  document  relating  to  a  subject  or matter jurisdiction
  whereof was transferred to the board of transportation, or when  in  any
  law, contract or document reference is made to such commission, board or
  commissioner in connection with a subject or matter jurisdiction whereof
  was so conferred, such term or reference shall be deemed to refer to and
  include  the  board  of  transportation, so far as such law, contract or
  document pertains to matters which are within the jurisdiction  of  such
  board.