- a) Faucets shall be of the self-closing type.
- b) All outlets of each cargo tank or compartment used for transporting Class I, Class II, or Class III liquids having a viscosity less than 45 seconds Saybolt Universal at 100 degrees F. shall be equipped with a shutoff valve located inside the shell; or in the sump when it is an integral part of the shell; and designed so that the valve must be kept closed except during loading and unloading operations. The operating mechanism for the valve shall be provided with a secondary control, remote from the fill openings and discharge faucets, for use in the event of accidents or fire. The control mechanism shall be provided with a fusible section which will permit valves to close automatically in case of fire. In every case there shall be provided between the shutoff valve seat and discharge faucet a shear section which will break under strain unless the discharge piping is so arranged as to afford the same protection and leave the shutoff valve seat intact.
- c) The outlets of each cargo tank used for transporting liquids having a viscosity equal to or greater than 45 seconds Saybolt Universal at 100 degrees F. shall be equipped with a shutoff valve, located internally, designed so that the valve will remain operable if the external connection is sheared off.
(Source: Amended at 9 Ill. Reg. 10012, effective October 1, 1985)