Chapter 7, Combustion Air, is hereby amended by adding the following section:

701.1.5 Prohibited Sources. Openings and ducts shall not connect appliance enclosures with a space in which the operation of a fan may adversely affect the flow of combustion air. Combustion air shall not be obtained from a hazardous location or from any area in which objectionable quantities of flammable vapor, lint or dust are released. Combustion air shall not be taken from a refrigeration machinery room.