|(a) LNG fueling facilities shall be designed with provisions for securing all equipment in accordance with §14.2101 of this title (relating to Uniform Protection Requirements). (b) Structures and support of LNG fueling facility equipment, piping, controls, and tanks shall be constructed of noncombustible material. (c) Dikes, grading, or diversion curbs shall be provided to prevent combustible or hazardous liquids from encroaching on the LNG refueling facility. (d) LNG shall not be vented to the atmosphere under normal operations unless the vent leads to a safe point of discharge. Vent pipes or stacks shall have the open end suitably protected to prevent entrance of rain, snow, and other foreign material. Vent stacks shall have provision for drainage. (e) Instructions identifying the location and operation of emergency controls shall be conspicuously posted in the facility area. (f) LNG fueling facility containers, liquid impoundment areas, and points of transfer shall be located according to the distances specified in §14.2110 of this title (relating to LNG Container Installation Distance Requirements). (g) LNG fueling facility containers may be sited above or below grade. Soil susceptible to freezing from contact with containers shall be heated directly or protected with an air space. (h) Containers having outer jackets made of materials subject to corrosion shall be protected against corrosion. (i) Vehicles delivering LNG to a facility or vehicles being fueled from a facility shall not be considered ignition sources. Vehicles containing fuel-fired equipment, such as recreational vehicles and catering trucks, shall be considered ignition sources unless the fuel-fired equipment is shut off completely before the vehicle enters an area in which ignition sources are prohibited. (j) LNG fueling facilities which transfer LNG at night shall have permanent lighting at points of transfer and operation, including at least two lights with a total of at least two footcandles of power. (k) Temperature monitoring systems shall be provided where the foundations supporting cryogenic containers and equipment could be adversely affected by freezing or frost heaving of the ground.