New York Laws
Article 44 - Traffic-Control Devices
1683 - Signs or Markings Required.

(b) Such signs shall be required for orders, ordinances, rules, or
regulations made by the New York state thruway authority, the office of
parks and recreation, a county park commission, a parkway authority, a
bridge authority, a bridge and tunnel authority or the legislative body
of a city having a population in excess of one million or any board,

body or official to whom the power of such local authority has been
designated only in so far as such local authorities in their discretion
may deem practicable.