N.Y.C. Admin. Code § 28-502.6.3: § 28-502.6.3 Unlawful to transfer sign to unregistered outdoor advertising company.

On and after a date to be provided by rule, it shall be unlawful for an outdoor advertising company to sell or otherwise transfer control of a sign or sign location or of any right of such company to sell, lease, market, manage or otherwise make space on a sign or at a sign location available to others for advertising purposes to an outdoor advertising company that is not registered in accordance with this article and the rules of the department.