The following words and terms when used in this chapter shall
have the following meanings unless the context clearly indicates otherwise.
(1) AED--The Commission's Alternative Energy Division.
(2) AFRED--The organizational unit of the AED that
administers the Commission's alternative fuels research and education
program, including LNG certification, exempt registration, and training.
(3) Aggregate water capacity--The sum of all individual
container capacities as measured by weight or volume of water when
the containers in a battery at an installation are full.
(4) ANSI--American National Standards Institute.
(5) API--American Petroleum Institute.
(6) ASME--American Society of Mechanical Engineers.
(7) ASME Code--The American Society of Mechanical Engineers
Boiler and Pressure Vessel Code, Section I, Section IV, Section VIII,
and Section IX.
(8) Automatic fuel dispenser--A fuel dispenser which
requires transaction authorization.
(9) Branch manager--See "Operations supervisor."
(10) Certified--Authorized to perform LNG activities
under the direction of a licensee as set forth in the Texas Natural
Resources Code. Certification alone does not allow an employee to
perform those activities which require licensing.
(11) Combustible material--A solid material which,
in the form in which it is used and under the conditions anticipated,
can be ignited and will burn, support combustion, or release flammable
vapors when subjected to fire or heat.
(12) Commercial installation--An LNG equipment installation
located on premises other than a single-family dwelling used primarily
as a residence.
(13) Commission--The Railroad Commission of Texas.
(14) Company representative--An owner or employee of
a licensee designated by that licensee to take any required examinations
and to actively supervise LNG operations of the licensee.
(15) Container--Any LNG vessel manufactured to the
applicable sections of the API Code, ASME Code, or DOT requirements
in effect at the time of manufacture.
(16) Container appurtenances--Components installed
in container openings, including but not limited to pressure relief
devices, shutoff valves, backflow check valves, excess flow check
valves, internal valves, liquid level gauges, pressure gauges, and
(17) Conversion--The changes made to a vehicle to allow
it to use LNG as a motor fuel.
(18) Design pressure--The pressure for which a system
or portion of that system is designed.
(19) Dike--A structure used to establish an impounding
(20) Director--The director of the AED or the director's
(21) Dispensing system--That combination of valves,
meters, hoses, piping, electrical connections, and fuel connections
used to distribute LNG to mobile or motor fuel containers.
(22) DOT--The United States Department of Transportation.
(23) Employee--Any individual who renders or performs
any services or labor for compensation, including individuals hired
on a part-time or temporary basis, full-time or permanent basis; independent
contractors; and owner-employees.
(24) Failsafe--Design features which provide for safe
conditions in the event of a malfunction of control devices or an
interruption of an energy source or an emergency shutdown.
(25) Final approval--The authority issued by LP-Gas
Operations allowing the introduction of LNG into a container and system.
(26) Fired equipment--Any equipment in which the combustion
of fuels takes place.
(27) Fixed-length dip tube--A pipe with a fixed open
end positioned inside a container at a designated elevation to measure
a liquid level.
(28) Ignition source--Any item, substance, or event
having adequate temperature and energy release of the type and magnitude
sufficient to ignite any flammable mixture of gases or vapors that
could occur at a site.
(29) Impounding area--An area defined through the use
of dikes or the topography at the site for the purpose of containing
any accidental spill of LNG.
(30) Individual--One human being. (See also "Person".)
(31) Interim approval order--The authority issued by
the Railroad Commission of Texas following a public hearing allowing
construction of an LNG installation.
(32) Labeled--The attachment to equipment or materials
of a label, symbol, or other identifying mark of a nationally recognized
testing laboratory or a Category 50 licensee which conducts product
evaluation, periodically inspects production of listed equipment or
materials, and which publishes its findings in a list indicating that
the equipment either meets appropriate standards or has been tested
and found suitable for use in a specified manner.
(33) LFL--Lower flammability limit.
(34) Licensed--Authorized to perform LNG activities
through the issuance of a valid license by LP-Gas Operations.
(35) Licensee--An applicant that has been granted an
LNG license by LP-Gas Operations.
(36) Listed--The inclusion of equipment or materials
in a list published by a nationally recognized testing laboratory
or a Category 50 licensee which conducts product evaluation, periodically
inspects production of listed equipment or materials, and whose listing
states either that the equipment or material meets appropriate standards
or has been tested and found suitable for use in a specified manner.
(37) LNG--Natural gas, consisting primarily of methane,
that has been condensed to liquid by cooling.
(38) LNG system--A system of safety devices, containers,
and other LNG equipment installed at a facility or on a vehicle and
designed for use in the sale, storage, transportation for delivery,
or distribution of LNG.
(39) LNG transport--Any vehicle or combination of vehicles
and LNG containers designed or adapted for use or used principally
as a means of moving or delivering LNG from one place to another,
including but not limited to any truck, trailer, semi-trailer, cargo
tank, or other vehicle used in the distribution of LNG.
(40) LP-Gas Operations--The organizational unit of
the AED that administers the LNG safety program, including licensing,
truck registration, installation approvals, complaint and accident
investigations, inspections of stationary installations and vehicles,
and code enforcement.
(41) Mass transit vehicle--Any vehicle which is owned
or operated by a political subdivision of a state, city, or county,
and which is used primarily in the conveyance of the general public.
(42) Maximum allowable working pressure--The maximum
gauge pressure permissible at the top of completed equipment, containers,
or vessels in their operating position for a design temperature.
(43) Mobile fuel container--An LNG container mounted
on a vehicle and used to store LNG as the fuel supply for uses other
than motor fuel.
(44) Mobile fuel system--An LNG system to supply fuel
to an auxiliary engine other than the engine used to propel the vehicle
or for other uses on the vehicle.
(45) Motor fuel container--An LNG container mounted
on a vehicle and used to store LNG as the fuel supply to an engine
used to propel the vehicle.
(46) Motor fuel system--An LNG system to supply LNG
as a fuel for an engine used to propel the vehicle.
(47) NEC--National Electrical Code (NFPA 70).
(48) NFPA--National Fire Protection Association.
(49) Noncombustible material--A solid material which
in no conceivable form or combination with other material will ignite.
(50) Nonlicensee--A person not required to be licensed,
but which shall comply with all other applicable rules in this chapter.
(51) Operations supervisor--An individual who actively
supervises LNG operations at an outlet.
(52) Outlet--A site operated by an LNG licensee at
which the business conducted materially duplicates the operation for
which the licensee is initially granted a license.
(53) Person--An individual, sole proprietor, partnership,
firm, joint venture, corporation, association, or any other business
entity, state agency or institution, county, municipality, school
district, or other governmental subdivision.
(54) Point of transfer--The point at which a connection
is made to transfer LNG from one container to another.
(55) Pressure relief valve--A valve which is designed
both to open automatically to prevent a continued rise of internal
fluid pressure in excess of a specified value (set pressure) and to
close when the internal fluid pressure is reduced below the set pressure.
(56) Pressure vessel--A container or other component
designed in accordance with the ASME Code.
(57) Property line--That boundary which designates
the point at which one real property interest ends and another begins.
(58) PSIG--Pounds per square inch gauge.
(59) Public transportation vehicle--A vehicle for hire
or service to the general public including but not limited to taxis,
buses, and airport courtesy cars.
(60) Repair to container--The correction of damage
or deterioration to an LNG container, the alteration of the structure
of such a container, or the welding on such a container in a manner
which causes the temperature of the container to rise above 400 degrees
(61) School--A public or private institution which
has been accredited through the Texas Education Agency or the Texas
Private School Accreditation Commission.
(62) School bus--A vehicle that is sold or used for
purposes that include carrying students to and from school or related
(63) Special transit vehicle--A vehicle which is primarily
used by a school or mass transit authority for special transit purposes
such as transport of mobility impaired individuals.
(64) Temporary installation--A dispensing station,
either skid-mounted or on a transport unit, that is intended to be
used for a finite period of time.
(65) Tentative approval--The authority issued by LP-Gas
Operations without a hearing allowing construction of an LNG installation.
(66) Thermal expansion relief valve--A pressure relief
valve that is activated by pressure created by a fluid temperature
(67) Trainee--An individual employed by a licensee
for a period not to exceed 45 days without that individual having
successfully completed the required examinations for the LNG activities
to be performed.
(68) Transfer area--That portion of an LNG refueling
station where LNG is introduced into or dispensed from a stationary
(69) Transfer system--All piping and equipment used
in transferring LNG between containers.
(70) Transition joint--A connector fabricated of two
or more metals used to join piping sections of two different materials.
(71) Transport--Any bobtail or semi-trailer equipped
with one or more containers.
(72) Transport system--Any and all piping, fittings,
valves, and equipment on a transport, excluding the container.
(73) Ultimate consumer--The person controlling LNG
immediately prior to its ignition.
(74) Vaporizer--A device other than a container that
receives LNG in liquid form and adds sufficient heat to convert the
liquid to a gaseous state.
(75) Water capacity--The amount of water in gallons
required to fill a container.