N.Y. Exec. Law § 296-d

§ 296-d. Sexual harassment relating to non-employees. It shall be an\nunlawful discriminatory practice for an employer to permit sexual\nharassment of non-employees in its workplace. An employer may be held\nliable to a non-employee who is a contractor, subcontractor, vendor,\nconsultant or other person providing services pursuant to a contract in\nthe workplace or who is an employee of such contractor, subcontractor,\nvendor, consultant or other person providing services pursuant to a\ncontract in the workplace, with respect to sexual harassment, when the\nemployer, its agents or supervisors knew or should have known that such\nnon-employee was subjected to sexual harassment in the employer's\nworkplace, and the employer failed to take immediate and appropriate\ncorrective action. In reviewing such cases involving non-employees, the\nextent of the employer's control and any other legal responsibility\nwhich the employer may have with respect to the conduct of the harasser\nshall be considered.\n