Flammable Liquids Bulk Storage Regulations — 16
16 (1) Except as provided in subsections (2) and (3), the minimum distances from the nearest point on a storage tank shell to any track, structure or property line shall be as designated in Table III of Schedule I. (2) Notwithstanding subsection (1)  but subject to subsection (4), the distance between storage tanks and other structures located on the installation site and used exclusively by the owning or operating company shall not be less than 10 feet. (3) Notwithstanding subsection (1), the requirement for minimum distances between a storage tank and any building on another installation subject to these Regulations with which it has a common property line shall be waived, if the location of the storage tank complies with the distance requirements of Table III of Schedule I with respect to the common property line. (4) Notwithstanding subsections (2) and (3), the distance between an above ground storage tank with a capacity of 500 Imperial gallons or less and any building on the installation site which is used exclusively by the company owning or operating the installation shall not be less than one foot, and a distance of not less than five feet shall be maintained between any building opening and the discharge end of storage tank vent pipes and fill pipe openings. (5) It is recommended that the distance of any flammable liquid storage tank from the right-of-way boundary of a provincial highway should not be less than the distance prescribed in Table III of Schedule I for a main track and in no case shall this distance be less than that prescribed by the authorities of the province concerned for installations subject to their jurisdiction. (6) In no case shall a flammable liquid storage tank be located less than 20 feet from any track. (7) Except as provided in subsection (8), no storage tanks containing flammable liquids shall be installed inside or under buildings or on ground that cannot be diked if dikes are required. (8) Class II flammable liquid storage tanks not exceeding an aggregate capacity of 500 Imperial gallons may be installed in or under buildings. (9) The distance of a storage tank from the fence surrounding the installation shall not be less than five feet. (10) Except as provided in subsection (12), flammable liquid storage tanks each with a capacity of 50,000 Imperial gallons or less shall be separated by not less than three feet. (11) Except as provided in subsection (12), a flammable liquid storage tank with a capacity exceeding 50,000 Imperial gallons shall be separated from any smaller tank by not less than one-half the diameter of such smaller tank. (12) Notwithstanding subsections (10) and (11), the clear distance between crude petroleum storage tanks, or a crude petroleum storage tank and any other flammable liquid storage tank shall not be less than (a) the diameter of the smaller storage tank, when the capacity of the adjacent tank is more than 50,000 Imperial gallons; or (b) one-half the diameter of the smaller storage tank, when the capacity of each tank is 50,000 Imperial gallons or less. (13) The clear distance between a storage tank containing a flammable liquid and a storage tank containing a liquefied petroleum gas or other dangerous commodity shall not be less than 20 feet, except that installations with a storage capacity exceeding 150,000 Imperial gallons shall be located not less than 100 feet from the nearest tank containing a liquefied petroleum gas or other dangerous commodity. (14) No dike enclosing flammable liquid storage tanks shall include a tank containing a liquefied petroleum gas or other dangerous commodity. (15) The distance between any flammable liquid storage tank and the centre line of a dike wall shall not be less than 10 feet. (16) An outside storage area containing 50 filled drums or less of flammable liquids shall be located not less than 10 feet from the line of any property that has been or may be built upon. (17) An outside storage area containing more than 50, b