All internal combustion engines and their accessories shall, as far as is practicable, be kept in such repair and adjustment as to create no gases other than those incidental to normal operation. Gaskets, manifold, mufflers, exhaust piping and all connections shall be maintained free of leaks and secured against displacement.
N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 23-10.3