"In the industrial and medical gases industry the transport of gases to the customers is often carried out by contractors acting as transporters or carriers.
In most cases the contractor provides personnel and transport equipment. Hence, the contractors’ personnel are directly responsible for transport safety.
For these reasons it is critical for the gas companies to choose their contractors diligently, train them for the transport of industrial and medical gases, monitor their performance closely and take action if they perform poorly.
This safety information provides guidance on the minimum requirements for the selection, qualification, and performance monitoring of contractors that provide equipment, personnel, and services for the transport of industrial and medical gases."