154.1330—Liquid level alarm system: Independent tank type C.
Independent tanks type C need not have the high liquid level alarm system under § 154.1325 if:
(a)
The tank volume is less than 200 m 3 (7,060 ft. 3 ); or
(b)
The tank can withstand the maximum possible pressure during loading, that pressure is below the relief valve setting, and overflow of the tank cannot occur.