B-1.1, r. 3 - Safety Code
273. The owner of a bulk plant must ensure that
(1) the receiving tank of the installation is designed to hold the volume intended for it;
(2) the grounding device of the tank is connected to the cargo tank before a petroleum product is transferred into an aboveground tank; and
(3) the ventilation of the tank is satisfactory and that there is no leak in the supply line during the transfer of a petroleum product.