New York Consolidated Laws, Labor Law - LAB § 239-a. Enforcement of article

If the fiscal officer, as defined herein, finds that any contractor on service work fails to comply with or evades the provisions of this article, he shall present evidence of such noncompliance or evasion to the public agency having charge of such work for enforcement.  Where such evidence indicates a noncompliance or evasion on the part of a subcontractor, the contractor shall be responsible for such noncompliance or evasion.  It shall be the duty of the public agency in charge of such service work to enforce the provisions of this article.