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TITLE 16ECONOMIC REGULATION
PART 1RAILROAD COMMISSION OF TEXAS
CHAPTER 14REGULATIONS FOR LIQUEFIED NATURAL GAS (LNG)
SUBCHAPTER BGENERAL RULES FOR ALL STATIONARY LNG INSTALLATIONS
RULE §14.2101Uniform Protection Requirements

(a) This section applies to the protection from tampering and damage of stationary LNG installations, including LNG transfer systems, dispensing systems, and storage containers.

(b) Protection shall be maintained in good condition at all times in accordance with the standards set forth in this section. LP-Gas Operations may impose additional requirements to ensure the safety of personnel and the general public.

(c) Stationary LNG installations shall be protected from tampering and damage by either fencing or guardrails, or a combination of both as specified in this section. The operating end of the container, including the material handling equipment and the entire dispensing system, and any part of the LNG transfer system, dispensing system, or storage container which is exposed to vehicular traffic shall be protected from damage by the vehicular traffic to which it is normally exposed. The protection shall extend at least 24 inches beyond any part of the LNG transfer system, dispensing system, or storage container.

(d) Stationary LNG installations may use fencing which is located more than 25 feet from any point of the LNG transfer system, dispensing system, or storage containers. If such perimeter fencing is used, the LNG transfer system, dispensing system, or storage containers shall also be protected from the normal vehicular traffic to which they are subjected by guardrails at the operating end of the equipment, including all material handling equipment. Guardrails shall be located at least 24 inches beyond any part of the protected equipment which is exposed to vehicular traffic.

(e) Fencing at LNG stationary installations shall comply with the following:

  (1) Fencing material shall be solid construction of noncombustible material or chain link with wire at least 12 1/2 American wire gauge in size.

  (2) Fencing shall be at least six feet in height at all points. Fencing may be five feet in height when topped with at least three strands of barbed wire, with the strands four inches apart.

  (3) Uprights, braces, and cornerposts shall be composed of noncombustible material if located within the minimum distances specified for ignition sources or combustible materials set forth in §14.2110 of this title (relating to LNG Container Installation Distance Requirements) for the enclosed LNG transfer system, dispensing system, or LNG containers.

  (4) A minimum clearance of 24 inches shall be maintained between the fencing and any part of an LNG transfer system, dispensing system, or storage container that is part of a stationary installation.

(f) Guardrails at LNG stationary installations shall comply with the following:

  (1) Vertical supports for guardrails shall be at least four-inch concrete-filled schedule 40 steel pipe or material of equal or greater strength. The vertical supports shall be capped on top, anchored in concrete at least 36 inches below the ground, and rise at least 30 inches above the ground. Supports shall be spaced four feet apart or less.

  (2) The top of the horizontal guardrailing shall be secured to the vertical supports at least 30 inches above the ground. The horizontal guardrailing shall be at least three-inch schedule 40 steel pipe or other material with equal or greater strength. The horizontal guardrailing shall be welded or bolted to the vertical supports with bolts of sufficient size and strength to prevent damage to the protected equipment under normal conditions including the nature of the traffic to which the protected equipment is exposed.

  (3) Openings in the horizontal guardrailing shall not exceed 36 inches. A means of temporarily removing the horizontal guardrailing and vertical supports to facilitate the handling of heavy equipment may be incorporated into the horizontal guardrailing and vertical supports. In no case shall the protection provided by the horizontal guardrailing and vertical supports be decreased. Transfer hoses from the bulkhead shall be routed only over the horizontal guardrailing or through the 45-degree opening in front of the bulkhead.

  (4) A minimum clearance of 24 inches shall be maintained between the railing and any part of an LNG transfer system, dispensing system, or storage container.

(g) Stationary LNG installations shall comply with the sign and lettering requirements specified in Table 1 of this section and the following:

  (1) Unless colors are specified, lettering shall be a color in sharp contrast to the background color of the sign and shall be easily readable.

  (2) Signs shall be visible from each point of transfer;

  (3) Signs on emergency shutdown devices shall be permanently affixed;

  (4) Signs bearing the words, "NATURAL GAS," shall be located on all operating sides of dispensers; and

  (5) Signs indicating the licensee's name shall be located at either the vehicle dispenser or refueling area, or at the loading or unloading area.

Attached Graphic

(h) At least two monitoring sensors shall be installed at all stationary installations to detect hazardous levels of LNG. Sensors shall activate at not more than 25% of the lower flammability limit of LNG. If the level exceeds one-fourth of the LFL, the sensor shall either shut the system down or activate an audible and visual alarm. The number of sensors to be installed shall comply with the area of coverage for each sensor and the size of the installation. The sensors shall be installed and maintained in accordance with the manufacturer's instructions.


Source Note: The provisions of this §14.2101 adopted to be effective May 26, 2003, 28 TexReg 4100; amended to be effective December 24, 2012, 37 TexReg 9921

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