New York Navigation Law Section 102 - Rules governing the operation of motor boats.

 102. Rules  governing  the  operation  of motor boats. The following
  rules for the operation of motor  boats  within  such  zone  are  hereby
  established:  1. No motor boat shall be operated within a harbor line at
  a speed exceeding five miles per hour. The waters of the Saint  Lawrence
  river  lying southerly of Wells Island and northwesterly of a line drawn
  from the easterly tip of Wells Island beginning at a point known as "The
  Chalet" and easterly and southerly of Saint Elmo Island  and  continuing
  southerly  of  Dewey  Island,  Nobby  Island,  and,  terminating  at the
  steamship dock, southerly of a point known as "Hope Well Hall"; and  the
  waters  of  the  Saint Lawrence river lying northerly of the mainland of
  the town of Alexandria, Jefferson county, New York, and southerly  of  a
  line  drawn  from  the  point of land beginning on the mainland known as
  Bonne Castle and northerly of Squaw Island to the southwesterly part  of
  Cuba  Island, shall constitute harbors for all the purposes mentioned in
  this article.
2. Every person operating a motor boat shall at all times operate  the
  same  in a careful and prudent manner and at such a rate of speed as not
  to endanger the property of another or the life or limb of any person.
3. No motor boat shall be operated  in  a  reckless  manner.  Reckless
  operation  shall  include  operating  a  motor  boat  in  a manner which
  unnecessarily interferes with the free and proper use of the  waters  of
  said  river, or unnecessarily endangers other craft therein, or the life
  or limb of any person.
4. No motor boat shall be operated during  the  period  from  one-half
  hour  after  sunset  to  one-half hour before sunrise at a greater speed
  than fifteen miles per hour. No motor boat shall be operated during  the
  period  from  one-half hour before sunrise to one-half hour after sunset
  at a greater speed than thirty miles per hour.  The provisions  of  this
  section  shall not apply to any motor boat while actually competing in a
  race held under  the  auspices  of  a  racing  association,  chamber  of
  commerce or duly incorporated yacht club.
The  provisions  of  this  section  are  intended  to supplement other
  provisions of  this  chapter  and  applicable  regulations.    The  more
  restrictive  provision  should  be  applied if more than one law or rule
  could be applied to a given situation.

Last modified: February 3, 2019