Hazardous locations

Model Code Safety Glazing Requirements
The three regional model code organizations, BOCA, SBCCI, and ICBO, as well as the new International Code Council, the first organization to publish a national model building code in the U.S., publish model codes containing requirements for the safe use of glass in Chapter 24 of their codes. For more than twenty years, the model codes have contained safety glazing requirements patterned after CPSC 16 CFR 1201.

U.S. model codes require each pane of safety glazing installed in hazardous locations to be identified by a label that identifies the labeler as manufacturer or installer, the safety glazing standard with which the glass complies, and the type and thickness of the glass or glazing material. In the case of multi-light glazed assemblies, where individual lights do not exceed 1 square foot in exposed area, at least one light in the assembly must display the complete label. The other must be marked CPSC 16 CFR 1201 or ANSI Z97.1, as appropriate. Except for tempered glass, affidavits or certificates may be substituted for labels when approved by the local code official.

Hazardous locations requiring labeled safety glazing materials in the model codes are defined to include:

	Glazing in swinging doors except jalousies.
	Glazing in fixed and sliding panels of sliding patio door assemblies and panels in other doors, including walk-in closets and wardrobes.
	Glazing in storm doors.
	Glazing in unframed swinging doors.
	Glazing in doors and enclosures for hot tubs, whirlpools, saunas, steam rooms, bathtubs and showers.
	Glazing in any portion of a building wall enclosing these above compartments where the exposed edge of the glazing is less than 60 inches above a standing surface.
	Glazing in a individual fixed or operable panel adjacent to a door where the nearest exposed edge of the glazing is within a 24-inch arc of either vertical edge of the door in a closed position and where the bottom exposed edge of the glazing is less than 60 inches above a walking surface. (Panels where there is an intervening wall or other permanent barrier between the door and the glazing are exempt.)
	Glazing in an individual fixed or operable panel where the exposed area of an individual pane is greater than 9 square feet and the exposed bottom edge is less than 18 inches above the floor, the exposed top edge is greater than 36 inches above the floor, and one or more walking surface(s) are within 36 inches horizontally of the plane of the glazing. Exceptions include a panel with a protective bar (1-1/2 inches or more in height and capable of withstanding a horizontal load of 50 pounds per linear foot without contacting the glass installed on the accessible sides of the glazing 34 inches to 38 inches above the floor), and an outboard pane in insulating glass units or multiple glazing where the bottom exposed edge of the glass is 25 feet or more above any grade, roof, walking surface of other horizontal or sloped surface adjacent to the glass interior.
	Glazing in guards and railings, including structural baluster panels and nonstructural in-fill panels, regardless of height above a walking surface.
	Glazing in walls and fences enclosing indoor and outdoor swimming pools and spas when the bottom edge of the glazing on the pool side is less than 60 inches above a walking surface on the pool side of the glazing and the glazing is within 60 inches horizontally of a water's edge.
	Glazing adjacent to stairways, landings and ramps when it is within 36 inches horizontally of a walking surface, within 60 inches horizontally of a bottom tread of a stairway in any direction, and the bottom edge is less than 60 inches above the plane of the adjacent walking surface (or stairway, measured from the nose of the tread).