Section 73-B. Misdemeanors

Every person convicted of a misdemeanor pursuant
  to  any  of  the provisions of this chapter for which another penalty is
  not provided shall for a first conviction thereof be punished by a  fine
  of not less than two hundred fifty nor more than five hundred dollars or
  by a period of imprisonment of not more than thirty days or by both such
  fine  and  imprisonment; for a conviction of a second violation, both of
  which were committed within a period of twenty-four months, such  person
  shall  be punished by a fine of not less than five hundred nor more than
  one thousand five hundred dollars or by a period of imprisonment of  not
  more  than  sixty  days  or  by  both such fine and imprisonment; upon a
  conviction of a  third  or  subsequent  violation,  all  of  which  were
  committed  within  a  period of twenty-four months, such person shall be
  punished by a fine of not less than one thousand five hundred  nor  more
  than two thousand five hundred dollars or by a period of imprisonment of
  not  more  than  one  hundred  twenty  days  or  by  both  such fine and
  imprisonment.