Section 25.11. Special events

1. The commissioner may authorize the holding
  of  special  events as defined in section 21.05. He shall adopt and may,
  from time to time, amend rules and regulations determining  the  special
  events  which  shall  be subject to permit and designating the equipment
  and facilities necessary for safe operation of snowmobiles and  for  the
  safety  of  operations,  participants,  and  observers  in  such special
  events. Whenever a special event is proposed to be held, the  person  in
  charge  thereof  shall,  at  least  fifteen  days prior thereto, file an
  application with the  commissioner  to  hold  such  special  event.  The
  application  shall  set  forth  the  date  and  location of the proposed
  special event  and  such  other  information  as  the  commissioner  may
  require,   and  such  event  shall  not  be  conducted  without  written
  authorization from the commissioner. Copies of such regulations shall be
  furnished by the  commissioner  to  any  person  making  an  application
  therefor.
    2. Snowmobiles operated at special events approved by the commissioner
  pursuant  to subdivision one shall be exempt from the provisions of this
  article  concerning  mufflers  and  lights  during  the  time  of   such
  operation,  including all pre-race practice at the location of said meet
  and the provisions of article forty-seven of the vehicle and traffic law
  concerning registration.