You must securely seal all containers with hazmat.

• A. True
• B. False
• C. Only when transferring hazmat
• D. Only for liquids

Answer: (A)

Securing hazmat containers prevents leaks, spills, and exposure by keeping contents contained during handling, storage, and transport. Hazmat materials can vent, leak, or shake loose if closures aren’t properly secured, creating risks to people, property, and the environment. Because of that risk, containers must be kept securely closed regardless of whether you’re moving them or storing them; it’s not limited to transfers or to liquids only. Secure sealing means using the correct closure, ensuring any gaskets or seals are intact, tightening caps or lids, and using locking closures or banding when required. Some materials may require secondary containment or venting procedures, but the general rule is to maintain a closed container to prevent accidental release. Following this practice helps meet safety rules and minimizes exposure to hazardous substances. You must securely seal all containers with hazmat.