§ 57.8531 - Construction and maintenance of ventilation doors.

Latest version.

§ 57.8531 Construction and maintenance of ventilation doors.

Ventilation doors shall be -

(a) Substantially constructed;

(b) Covered with fire-retardant material, if constructed of wood;

(c) Maintained in good condition;

(d) Self-closing, if manually operated; and

(e) Equipped with audible or visual warning devices, if mechanically operated.

                    
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§ 57.8531 - Construction and maintenance of ventilation doors.

§ 57.8531 Construction and maintenance of ventilation doors.