A suitable "stop" or "stops" shall be mounted on the vehicle or on the container in such a way that the container shall not be dislodged from its mounting due to the vehicle coming to a sudden stop. Back slippage shall also be prevented by proper methods.
When containers are mounted on four-wheel trailers, care shall be taken to insure that the weight is distributed evenly over both axles.
When the cradle and the tank are not welded together suitable material shall be used between them to eliminate metal-to-metal friction.
A suitable "hold down" device shall be provided which will anchor the container to the vehicle at one or more places on each side of the container.