Which step is performed just before selecting the proper shipping name in the classification process?

• A. Determine if material is hazardous
• B. Gather lab data
• C. Assign Primary & Subsidiary Hazard Class(es) (Precedence Table)
• D. Determine packaging group

Answer: (C)

The step hinges on how the shipping name is built from hazard classifications. When a material has more than one hazard, you must decide which hazard is the primary driver of the danger and what subsidiary hazards exist. The Precedence Table is the rule set that tells you which hazard class takes precedence as the primary one and which hazards are considered subsidiary. This decision is essential before selecting the proper shipping name, because the name is determined from the primary hazard (and notes any subsidiary hazards). Without identifying the primary and subsidiary hazards, the shipping name could misrepresent the main danger. After this, you’d use that classification to guide packaging requirements (packaging group) and finalize the appropriate shipping name.