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Labeling and Marking a Package Containing a Category B Substance

Packages that contain category B substances must exhibit these markings and labels:

Proper Shipping Name

Package Mark (UN 3373 Label)

The emergency contact must be available during regular business hours. Placing this information on the package is optional with category B substances. The information may instead be provided on the air waybill. The person designated as the emergency contact must be:

  • Knowledgeable of package contents
  • Available during business hours of the employer
  • Able to provide emergency response information to prevent an incident