Licenses granted under the preceding sections
of this chapter may be revoked or suspended at any time after notice
and hearing by the governing body, if the vehicle shall not be in
a safe condition for the transportation of passengers or not be kept
in conformity with the terms of this chapter, or if its use is permitted
for any improper, immoral or illegal business or purposes, or for
the violation of any statute or law of the State of New Jersey or
of the United States or for the violation of any of the provisions
of this chapter.