National Fire Protection Association 1 - Safety Cans
NFPA 1: 18.104.22.168 Closed Container
A container as herein defined, so sealed by means of a lid or other device that neither liquid nor vapor will escape from it at ordinary temperatures. [30, 2015]
NFPA 1: 22.214.171.124.1 Liquids Shall Be Transported by Means of Closed Containers, Approved Safety Cans
Liquids shall be transported by means of closed containers, approved safety cans, or approved portable tanks or shall be transferred by means of a piping system. Open containers shall not be used for moving or storing liquids.
Please consult your local authority having jurisdiction with your questions and for guidance in conforming to laws as they apply to your application. This is only meant for a reference and does not imply a warranty.