7 Colo. Code Regs. § 1101-16-3-2

Current through Register Vol. 47, No. 24, December 25, 2024

Section 7 CCR 1101-16-3-2 - Retail Motor Fuel Dispensers Inspection and Testing

(a) All retail motor fuel dispensers (RMFDs) shall be suitable for their intended use, properly installed accurate and maintained in that condition by their owner/operator.

(b) All RMFDs shall have an active National Type Evaluation Program (NTEP) Certificate of Conformance (CC) prior to installation or use for commercial purposes.

(c) All RMFDs shall be capable of displaying delivered quantity in units of mass for calibration purposes. All adjustments and calibrations of RMFDs shall be made utilizing mass measurement standards.

(d) The division shall be notified when any new, repaired or remanufactured RMFD is placed in service at a new or existing installation.

(1) Notification shall be submitted using a placed in service report provided by the division.

(e) No owner/operator of any RMFD shall use the RMFD for the measurement of natural gas unless it has been proved in a manner acceptable to the division and sealed as correct by a state inspector or registered service agency.

(1) All RMFDs shall be proved and sealed as correct on an annual basis by either a state inspector or registered service agency.

(f) Containers used for proving CNG meters shall be manufactured, inspected, marked, tested, retested, equipped and used in accordance with all provisions of NFPA 52 including the following:

(1) Containers shall be fabricated of steel, aluminum, or composite materials.

(2) The container shall be designed for CNG service.

(3) The container shall be permanently marked "CNG" by the manufacturer.

(4) Containers manufactured prior to the effective date of this code shall be permitted to be used in CNG service if recommended for CNG service by the container manufacturer or if approved by the authority having jurisdiction.

(g) Cylinders shall be manufactured in accordance with both of the following:

(1) ANSI NGV 2, Compressed Natural Gas Vehicle (NGV) Fuel Containers, specifically for CNG service

(2) U.S. Federal Motor Vehicle Safety Standard, 49 CFR 571.304, Compressed Natural Gas Fuel Container Integrity

(h) Cylinders that have reached the labeled expiration date shall be removed from service.

(i) Composite reinforced cylinders or other cylinders marked with exemption or special permit numbers shall be removed from service.

(j) Containers used for proving LNG meters shall be designed, fabricated, tested and marked (or stamped) in accordance with all of the provisions of NFPA 52 including the following:

(1) The Regulations of DOT Specification 4L or the "Rules for the Construction of Unfired Pressure Vessels," ASME Boiler and Pressure Vessel Code, applicable at the date of manufacture.

(2) LNG containers that are in contact with LNG or cold LNG vapor shall be physically and chemically compatible with LNG and designed for service at -260°F (-162°C).

(3) Container appurtenances shall have a rated working pressure not less than the maximum allowable working pressure of the container.

(4) For vacuum insulation, the inner tank, outer tank, and internal lines shall be tested for vacuum leaks prior to installation on the vehicle.

(5)Heat Leak. The manufacturer shall identify the maximum operating design pressure of the container.

(6) The construction of the container shall be such that the unrelieved pressure inside the container will not exceed the maximum allowable working pressure of the container within a 72 hour period after the container has been filled to its maximum filling volume with LNG stabilized at the designed operating pressure and temperature equilibrium has been established.

(7) The ambient temperature during the 72 hour period shall be 70°F (21°C).

(k) ASME Compliance for CNG and LNG Containers

(1) Pressure vessels shall be manufactured, inspected, marked, and tested in accordance with ASME Boiler and Pressure Vessel Code, Section VIII or Section X.

(2) Adherence to applicable ASME Boiler and Pressure Vessel Code case interpretations and addenda shall be considered as compliant with the ASME Boiler and Pressure Vessel Code.

(3) Pressure vessels manufactured to the requirements of the ASME Boiler and Pressure Vessel Code shall be registered with the National Board of Boiler and Pressure Vessel Inspectors.

(4) The repair or alteration of an ASME pressure vessel shall comply with the requirements of NB-23, National Board Inspection Code.

(5) Other welding or brazing shall be permitted only on saddle plates, lugs, or brackets attached to the pressure vessel by the pressure vessel manufacturer.

(6) The exchange or interchange of pressure vessel appurtenances intended for the same purpose shall not be considered a repair or alteration.

(l) Means shall be provided at the natural gas fueling facility to return all natural gas product used for proving meters back to the compression and storage equipment or other receiving vessel when proving is completed.

(m) If unable to return product to the compression and storage equipment, and if venting of product to the atmosphere is necessary, the following requirements shall apply.

(1) The venting shall be performed only by trained personnel using an approved method of atmospheric venting and following written procedures.

(2) A valve shall be used to control the discharge of gas from the proving container.

(3) Direct gas venting shall be done through a vent tube that diverts the gas flow to the atmosphere in a safe direction at least 10 feet above grade, clear of personnel, adjacent structures and ignition sources and meeting approval of the authority having jurisdiction.

(4) Venting at ground level (grade) is not permissible.

(5) The vent tube shall have a gas-tight connection to the container prior to venting.

(6) All components of the vent tube shall be grounded.

(7) The vent tube shall be constructed of Schedule 80 pipe of at least 2 in. diameter.

(8) The vent tube shall not be provided with any feature that limits or obstructs gas flow.

(9) The venting function shall be manually controlled.

(10) Personnel performing venting shall do the following.

(A) Use grounding to prevent static electric charge buildup.

(B) Limit the rate of gas release from plastic-lined containers to a value not greater than that specified by the container manufacturer.

(C) Restrain containers during venting to prevent container movement.

(n) If any RMFD fails to comply with any of the provisions of this regulation, a state inspector shall seal it in such a manner as to prohibit its use, and it shall remain sealed until it complies with all of the provisions of this regulation.

(1) When an RMFD is brought back into compliance with this regulation, it must be placed back in service by a state inspector or registered service agency.

(o) All RMFDs shall comply with the minimum standards as prescribed by the applicable sections of the codes adopted by this regulation except as modified or rejected by this regulation or by the division.

(p) In addition to the requirements of Section 3-2 (a) through (e), all RMFDs dispensing natural gas in terms of gallon equivalents used for motor vehicle fuel shall meet the requirements of CRS 8-20-232.5.

(q) All measuring devices installed on mobile refueling equipment including vehicles shall meet the requirements of Section 3-2 (a) through (g), Section 3-3, and Section 3-4.

7 CCR 1101-16-3-2

41 CR 16, August 25, 2018, effective 9/15/2018