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 m2) for a space up to 1,000 square feet (92.903 m2) in area and shall be increased 30 square inches (0.0194 m2) for each additional 200 square feet (18.58 m2) of floor area up to maximum floor area of 3,000 square feet (278.709 m2).