<<Prev Rule

Texas Administrative Code

Next Rule>>
TITLE 16ECONOMIC REGULATION
PART 1RAILROAD COMMISSION OF TEXAS
CHAPTER 14REGULATIONS FOR LIQUEFIED NATURAL GAS (LNG)
SUBCHAPTER GENGINE FUEL SYSTEMS
RULE §14.2607Vehicle Fuel Containers

(a) Containers shall be designed, tested, and marked or stamped in accordance with DOT Specification 4L or ASME Code, "Rules for the Construction of Pressure Vessels," Section VIII, Division 1, applicable on the date of manufacture.

(b) The owner of a container shall be responsible for its suitability for continued service.

(c) Repair or alteration of containers shall comply with the Code under which that container was fabricated. Licensees making repairs or alterations shall file LNG Form 2008 with LP-Gas Operations.

(d) Containers shall be equipped with a dip tube or other device so that the maximum filling volume of the container complies with §14.2107 of this title (relating to Stationary LNG Storage Containers).

(e) Containers shall be constructed so that the unrelieved pressure inside the container shall not exceed the maximum allowable working pressure of the container within a 72-hour period at an ambient temperature of 70 degrees Fahrenheit after the container has been filled with LNG stabilized at the maximum allowable working pressure and temperature equilibrium has been established.

(f) Connections for pressure relief valves shall be located and installed to communicate directly with the vapor space.

(g) Containers shall have permanent identification markings, decals, or stencils to identify:

  (1) the total volumetric capacity of the container in gallons;

  (2) the words, "FOR LNG ONLY," in capital letters at least one inch high in a location that is visible after installation; and

  (3) all inlets and outlets, except relief valves and gauging devices, designating whether they communicate with vapor or liquid space.

(h) Container appurtenances shall be fabricated of materials suitable for LNG service. Pressure containing metal parts of appurtenances, except fusible elements, shall have a minimum melting point of +1,500 degrees Fahrenheit. Container appurtenances shall have a rated maximum allowable working pressure not less than the maximum allowable working pressure of the container.

(i) Containers shall be equipped with the pressure relief devices and pressure control valves required by the code or regulations under which the containers were designed. The pressure relief devices and pressure control valves shall communicate directly with the vapor space of the container, and shall be designed to minimize the possibility of tampering. Externally set or adjusted valves shall be provided with a means of sealing the adjustment.

(j) Valves shall be readily accessible and operable without the use of tools. A shutoff valve shall be installed directly on the container vapor outlet with no intervening fitting other than pressure relief devices and shall be marked with the words, "VAPOR SHUTOFF VALVE." Another shutoff valve shall be installed directly on the container liquid outlet and shall be marked with the words, "LIQUID SHUTOFF VALVE." The markings shall be in capital letters. Decals or stencils are acceptable. Normally closed automatic shutoff valves that are held open by electric current or manually operated shutoff valves may be used.


Source Note: The provisions of this §14.2607 adopted to be effective May 26, 2003, 28 TexReg 4100; amended to be effective December 24, 2012, 37 TexReg 9921

Link to Texas Secretary of State Home Page | link to Texas Register home page | link to Texas Administrative Code home page | link to Open Meetings home page