Surfaces of a machine which in normal operation may become heated to a temperature of 150 degrees Fahrenheit or more shall be so located or covered that they are not normally exposed to contact. This general requirement does not apply to machine surfaces necessarily heated and exposed for performance of the designed process, but no such surface shall be heated to a temperature greater than 360 degrees Fahrenheit nor exposed to an unnecessary extent.
N.Y. Comp. Codes R. & Regs. Tit. 12 § 43.14