| (a) In addition to NFPA 52 §§7.14.4 and 7.14.5,
dispensers shall comply with §13.37 of this title (relating to
Appurtenances and Equipment). Existing dispensers may be modified,
provided the modifications include only those components listed as
approved by a laboratory as specified in §13.37 of this title,
and are installed in a workmanlike manner in accordance with industry
standards.
(b) The dispenser shall have the following features.
(1) A key, card, or code system shall be used for automatic
dispensers.
(2) All appurtenances, metering equipment, and other
related equipment installed on a dispenser shall meet all applicable
requirements of the rules in this chapter.
(3) All dispensing equipment shall be fabricated of
material suitable for CNG, and resistant to the action of CNG under
service conditions.
(4) The dispensing system shall incorporate a cutoff
valve with an opening and closing device which ensures the valve is
in a closed position when the dispenser is deactivated.
(5) The fueling connector shall be compatible with
the fueling connection of the vehicle as specified in §13.34
of this title (relating to Vehicle Fueling Connection). The fueling
connector shall have the following safety features:
(A) remote vapor discharge; and
(B) a manual shut‑off valve.
(c) CNG dispensing systems utilizing automatic dispensers
shall be limited to the filling of permanently mounted fuel containers
on CNG‑powered vehicles.
(d) Fuel dispensers, including automatic dispensers,
may be operated only by an individual who has been properly trained.
(1) The licensee owning, operating, or servicing a
CNG fuel dispensing facility shall ensure the safe operation of the
system and provide training to users.
(2) Step‑by‑step operating instructions
provided by the manufacturer shall be posted at or on each automatic
dispenser, readily visible to the operator during transfer operations.
The instructions shall describe each action necessary to operate the
automatic dispenser and include the location of and procedure for
activating emergency shutoff equipment.
(3) Each person or entity who operates a fuel dispenser,
excluding an automatic dispenser, shall be provided with written instructions
and safe operating procedures by the licensee. The person operating
the dispenser should be cautioned to study and preserve such instructions
and procedures.
(e) Each retail CNG dispenser shall comply with the
applicable weights and measures requirements of the Texas Department
of Agriculture, relating to dispensing accuracy.
(f) If automatic dispensers are to be used during hours
of darkness, permanent adequate lighting shall be provided to facilitate
proper operations.
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