SECTION 165:26-14-80. Dispensing fuel into tank vehicles

  Tank vehicles must be loaded and unloaded as follows:

(1)   Liquids can only be loaded into cargo tanks whose material of construction is compatible with the chemical characteristics of the liquid.

(2)   The liquid being loaded must also be chemically compatible with the liquid hauled on the previous load unless the cargo tank has been cleaned.

(3)   When transferring Class I liquids, engines of tank vehicles or motors of auxiliary or portable pumps must be shut down while making and breaking hose connections.

(4)   If loading or unloading is done without requiring the use of the motor of the tank vehicle, the vehicle's motor must be shut down throughout any transfer operations involving Class I liquids.

(5)   Filling through open domes into the tanks of tank vehicles must be by means of a downspout that extends to within 6 in. of the bottom of the tank.

(6)   When top loading a tank vehicle with Class I or Class II liquids without a vapor control system, valves used for the final control of flow must be of the self-closing type and must be manually held open except where automatic means are provided for shutting off the flow when the vehicle is full.

(A)   Automatic shutoff systems must be provided with a manual shutoff valve located at a safe distance from the loading nozzle to stop the flow if the automatic system fails.

(B)   When bottom loading a tank vehicle, a positive means must be provided for loading a predetermined quantity of liquid, together with a secondary automatic shutoff control to prevent overfill.

(C)   The connecting components between the loading rack and the tank vehicle that are required to operate the secondary control must be functionally compatible.

(D)   The connection between the liquid loading hose or pipe and the truck piping must be by a dry disconnect coupling.

(7)   When bottom loading a tank vehicle that is equipped for vapor control, but when vapor control is not used, the tank must be vented to the atmosphere, at a height not lower than the top of the cargo tank of the vehicle, to prevent pressurization of the tank. Connections to the facility's vapor control system must be designed to prevent the escape of vapor into the atmosphere when not connected to a tank vehicle.

(8)   When bottom loading is used, reduced flow rates (until the fill opening is submerged), splash deflectors or other devices must be used to prevent splashing and to minimize turbulence.

(9)   To allow for the relaxation of charge, metal or conductive objects, such as gauge tapes, sample containers and thermometers must not be lowered into a compartment while the compartment is being filled or immediately after pumping stops.

[Source: Added at 17 Ok Reg 2875, eff 7-15-00]