(1)  Working pressure and classifications of containers. Containers shall be constructed in accordance with ARM 4.12.725.

(2)  Mounting of containers shall be as follows:

(a)  Each container shall be supported so as to prevent the concentration of excessive loads on the supporting portion of the shell.

(b)  A hold-down device shall be provided which will anchor container to vehicle at one or more places on each side.

(c)  When the cradle and the tank are of dissimilar metals, material which will not deteriorate with weather or create friction shall be used between to eliminate metal-to-metal contact.

(3)  Container, valves and accessories:

(a)  Each container shall be equipped with a liquid level gauging device.

(b)  Flow control equipment may be connected directly to the tank coupling or flange, in which case a flexible connection shall be used between such control equipment and the remainder of the liquid withdrawal system. Flow control equipment not so installed may be connected to the container with a flexible connection.