New York Consolidated Laws, General City Law - GCT § 5. Certain parades and processions forbidden;  penalty

All processions or parades occupying or marching on any street of any city to the exclusion or interruption of other citizens in their individual right and use thereof, excepting the National Guard and the police and fire departments, and the associations of veteran soldiers, are forbidden, unless written notice of the object, time and route of such procession or parade be given by the chief officer thereof, not less than six hours previous to its forming or marching, to the police authorities of such city;  and such police authorities may designate to such procession or parade how much of the street in width it can occupy with especial reference to crowded thoroughfares through which such procession may move;  and, when so designated, the chief officer of such procession or parade shall be responsible that the designation is obeyed;  and it shall be the duty of the police authorities to furnish such escort as may be necessary to protect persons and property and maintain the public peace and order.  A person wilfully violating any provision of this section shall be guilty of a misdemeanor, punishable by a fine not exceeding twenty dollars or imprisonment not exceeding ten days, or both.