N.Y. Nav. Law § 32-E
The local legislative body of the towns of Lewiston and Porter and the villages of Youngstown and Lewiston for the purpose of responsible shoreline management, may adopt, amend and enforce local laws, rules and regulations not inconsistent with the laws of this state or of the United States, with respect to the restriction and regulation of the manner of construction and location of structures in the Niagara River within or bounding the towns of Lewiston and Porter and the villages of Youngstown and Lewiston to a distance of one-half the width of the river or up to the United States-Canadian border. Structures may include boathouses, wharfs, piers, docks, jetties or other types of structures which are non-permanent in nature or which are otherwise not subject to permit requirements.
N.Y. Nav. Law § 32-E