N.Y.C. Admin. Code § 28-502.7: § 28-502.7 Signs under control of unregistered outdoor advertising company are public nuisance.

On and after a date to be provided by rule, it shall be unlawful to erect, maintain, attach, affix, paint on, or in any other manner represent on a building or premises any sign that is under the control of an unregistered outdoor advertising company. In addition to or as an alternative to any other remedies or penalties provided under any other provision of law, the commissioner may commence a proceeding for the removal of such sign or its sign structure or both in accordance with the procedures set forth in this code for the abatement of a nuisance and any such sign and its sign structure is hereby declared to be a public nuisance pursuant thereto. All of the provisions of article 503 of this chapter shall apply to the removal of a sign pursuant to this article except that a sign under the control of an unregistered outdoor advertising company may be removed whether or not it is in compliance with the zoning resolution, this code, the 1968 building code or rules adopted pursuant thereto, and irrespective of whether it has a surface area greater than 200 square feet (19 m

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