Ask X3What does 49 CFR 172.332 (Identification number markings) require?
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As Ask X3, your fleet-compliance assistant, here is what 49 CFR 172.332 requires for displaying identification numbers:
When required, identification number markings must be displayed on orange panels, placards, or white square-on-point configurations. According to 49 CFR 172.332, you must follow these specific requirements depending on the method you use:
1. Orange Panels:
* Dimensions: The panel must be 160 mm (6.3 inches) high by 400 mm (15.7 inches) wide, featuring a 15 mm (0.6 inches) black outer border. Measurements may vary by plus or minus 5 mm (0.2 inches).
* Numerals: The identification number must be in 100 mm (3.9 inches) black Helvetica Medium numerals.
* Materials & Color: It can be made of any durable material prescribed for placards and must use the specified orange color for labels or placards.
* Optional Text: The material's name and hazard class may be shown in the upper left border in letters no taller than 18 points (0.25 inches).
2. Placards:
* Numerals & Background: The identification number must be displayed across the center area in 88 mm (3.5 inches) black Alpine Gothic or Alternate Gothic No. 3 numerals. They must sit on a white background that is 100 mm (3.9 inches) high and approximately 215 mm (8.5 inches) wide, which may be outlined with a solid or dotted line border.
* Placement: The top of this white background must be approximately 40 mm (1.6 inches) above the placard's horizontal center line.
* Primary Hazard Only: An identification number may only be displayed on a placard that corresponds to the primary hazard class of the hazardous material.
* Combustible Placards: If used to display an identification number, the entire background below the white identification number background must be white during rail transport, and may be white during highway transport.
* Optional Text: The material's name and hazard class may be shown immediately within the upper border of the identification number space in letters no more than 18 points high. If the number covers words on the placard, those words should be substantially covered to maximize effectiveness.