New York Laws
Article 15 - Human Rights Law
296-D - Unlawful Discriminatory Practices Relating to Non-Employees.

ยง 296-d. Unlawful discriminatory practices relating to non-employees.
It shall be an unlawful discriminatory practice for an employer to
permit unlawful discrimination against non-employees in its workplace.
An employer may be held liable to a non-employee who is a contractor,
subcontractor, vendor, consultant or other person providing services
pursuant to a contract in the workplace or who is an employee of such
contractor, subcontractor, vendor, consultant or other person providing
services pursuant to a contract in the workplace, with respect to an
unlawful discriminatory practice, when the employer, its agents or
supervisors knew or should have known that such non-employee was
subjected to an unlawful discriminatory practice in the employer's
workplace, and the employer failed to take immediate and appropriate
corrective action. In reviewing such cases involving non-employees, the
extent of the employer's control and any other legal responsibility
which the employer may have with respect to the conduct of the person
who engaged in the unlawful discriminatory practice shall be considered.