What prefixes are used for hazardous material identification numbers?

Study for the Louisiana HAZMAT Test. Prepare with flashcards and multiple-choice questions, each with explanations. Get ready for your exam!

The correct prefixes used for hazardous material identification numbers are "UN" and "NA."

"UN" stands for United Nations, which is part of the international system for identifying hazardous materials with unique four-digit numbers. This system helps ensure consistent identification of hazardous substances across countries and is used for transporting these materials safely. For example, a substance like gasoline is identified internationally by the UN number 1203.

"NA," which stands for North American, is also used for identifying hazardous materials but specifically within the context of North America. It complements the UN system by providing an additional classification for certain materials that may not have a UN number assigned.

Together, these prefixes facilitate communication about hazardous materials, enhancing safety during handling and transport by ensuring that everyone involved can identify and understand the nature of the materials being dealt with.

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