The page below is a sample from the LabCE course Packaging and Shipping Infectious Materials. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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DOT Classification Decision Tree, continued

If you answer "Yes" to any of the bulleted questions shown on the right, follow the green Yes arrow. This substance is "Not subject to the requirements as Division 6.2 material," according to the DOT classification requirements.
If you answer "No" to ALL of the questions, follow the red No arrow to the next box on the classification decision tree and determine if the substance meets the definition of a category A substance.