406.3 Add the following section:

406.3.4 Ventilation.

Ventilation shall be provided as follows: Natural ventilation shall be required, and such space shall be provided with ventilation outlets in the walls

or exterior doors. The total net area of such ventilation outlets shall be 200 square inches (0.129 m [2] ) for a space up to 1,000 square feet (92.903 m [2] ) in

area and shall be increased 30 square inches (0.0194 m [2] ) for each additional 200 square feet (18.58 m [2] ) of floor area up to maximum floor area of 3, 0 00 square feet (278.709 m [2] ).