As the Class A or Class B operator you must familiarize yourself with the requirements for labeling containers used for storing hazardous substances, as well as check that Class C operators and other on-site facility personnel have the appropriate training, tools and equipment to meet those requirements.
These requirements include:
1. Employers must ensure that labels on containers of hazardous substances are not removed or defaced.
2. Containers can be a box, drum, can, bottle, tank, etc.
3. Containers must be compatible with the hazardous chemical to be stored.
4. Containers shall have the appropriate label affixed on the outside.
Understanding the DOT (U.S. Department of Transportation) placard system is crucial to preventing the transfer of the wrong chemicals from a transport vehicle or process system into a hazardous chemical storage tank. Information about the DOT placard system can be found in the “Emergency Response Guidebook.” This guidebook can be downloaded free of charge at the website for the Pipeline and Hazardous Materials Safety Administration, which is a division of the DOT. Samples of placards are shown on this page.