Mats and duckboards shall be of nonabsorbent, grease-resistant materials, and of such size, design and construction to facilitate cleaning, and shall be maintained in good repair. Single-use materials such as rolls of sanitary cardboard designed for such purpose may be used as mats, provided such materials are discarded and replaced as necessary to maintain proper sanitation.
N.Y. Comp. Codes R. & Regs. Tit. 1 §§ 271-7.4