(a) If the waterfront facility handling LNG is in a region subject to earthquakes, the piers and wharves must be designed to resist earthquake forces.
(b) Substructures, except moorings and breasting dolphins, that support or are within 5 meters (16.4 feet) of any pipe or equipment containing LNG, or are within 15 meters (49.2 feet) of a loading flange, must--
(1) Be made of concrete or steel; and
(2) Have a fire endurance rating of not less than two hours.
(c) LNG or LPG storage tanks must have the minimum volume necessary for--
(1) Surge protection;
(2) Pump suction supply; or
(3) Other process needs. [CGD 78-038, 53 FR 3376, Feb. 7, 1988, as amended by CGD 88-049, 60 FR 39796, Aug. 3, 1995]