section_path: Classification/Shipping label classifications
section_name: Shipping label classifications
paragraph_text: Shipping label classifications
  
  Shipping labels and tags may include both United Nations and national markings.
  
  United Nations markings include numbered Hazard Class and Division (HC/D) codes and alphabetic Compatibility Group codes. Though the two are related, they are separate and distinct. Any Compatibility Group designator can be assigned to any Hazard Class and Division. An example of this hybrid marking would be a consumer firework, which is labeled as 1.4G or 1.4S.
  
  Examples of national markings would include United States Department of Transportation (U.S. DOT) codes.