What is the purpose of the shipper's certification found on a hazmat shipping paper, and who is responsible for completing it?

Hazmat (H) Endorsement • Free CDL Practice Question
Regulation

49 CFR 172.204 — shipper's certification

Why This Matters

The certification is the one place on the paperwork where the party who actually prepared the hazmat load puts their name on the line that it's safe and legal to transport. Confirming it's there and signed is your last checkpoint before you become legally responsible for what you're hauling.