Which placards are used to affix UN Identification Numbers?

Which placards are used to affix UN Identification Numbers?

• A. Rectangular orange panels and diamond-shaped hazard classification system placards
• B. Stickers with the chemical name only
• C. Circular blue badges
• D. Large red banners

Answer: (A)

UN Identification Numbers are four-digit codes used on hazmat transport to quickly identify the substance involved. These numbers are shown on placards so responders can read the material’s identity at a glance. The two placard formats that display the UN number are rectangular orange identification panels and the diamond-shaped hazard placards. The orange panels are used on certain transport modes to clearly show the UN number, while the diamond-shaped placards carry the UN number in the center along with the hazard class. Other options don’t convey the UN number, so they wouldn’t serve this purpose.

UN Identification Numbers are four-digit codes used on hazmat transport to quickly identify the substance involved. These numbers are shown on placards so responders can read the material’s identity at a glance. The two placard formats that display the UN number are rectangular orange identification panels and the diamond-shaped hazard placards. The orange panels are used on certain transport modes to clearly show the UN number, while the diamond-shaped placards carry the UN number in the center along with the hazard class. Other options don’t convey the UN number, so they wouldn’t serve this purpose.