SECTION 748:20-3-13.2. IFC® 2015 Chapter 23 Motor Fuel-Dispensing Facilities and Repair Garages

  Chapter 23 of the IFC® 2015 is adopted with the following modifications:

(1)   Section 2301.7 Liquid natural gas (LNG) motor fuel-dispensing facilities. This section has been added to clarify that motor fuel-dispensing facilities for LNG shall comply with the requirements of Section 2303 and Chapter 55. This section has been added to read: 2301.7 Liquid natural gas motor fuel-dispensing facilities. Motor fuel-dispensing facilities utilizing liquid natural gas (LNG) fuel shall comply with the requirements of Section 2303 and Chapter 55.

(2)   Section 2302 Definitions. This section has been modified to add to the terms "Main Railroad Track" and "Dispensing Area" to the list of terms defined in Chapter 2. This section has been modified to read: 2302.1 Definitions. The following terms are defined in Chapter 2:

(A)   AIRCRAFT MOTOR-VEHICLE FUEL-DISPENSING FACILITY.

(B)   ALCOHOL-BLENDED FUELS.

(C)   AUTOMOTIVE MOTOR FUEL-DISPENSING FACILITY.

(D)   DISPENSING AREA.

(E)   DISPENSING DEVICE, OVERHEAD TYPE.

(F)   FLEET VEHICLE MOTOR FUEL-DISPENSING FACILITY.

(G)   LIQUEFIED NATURAL GAS (LNG).

(H)   MAIN RAILROAD TRACK.

(I)   MARINE MOTOR FUEL-DISPENSING FACILITY.

(J)   REPAIR GARAGE.

(K)   SELF-SERVICE MOTOR FUEL-DISPENSING FACILITY.

(3)   Section 2303.1 Location of dispensing devices. This section has been modified to provide a sixth requirement when different types of fuel-dispensing devices for different fuels are located under the same canopy to prevent the accumulation or entrapment of ignitable vapors or all the electrical equipment located under the canopy must be suitable for Class I, Division 2 hazardous (classified) location. This section has been modified to read: 2303.1 Location of dispensing devices.Dispensing devices shall be located as follows:

(A)   Ten feet (3048 mm) or more from lot lines.

(B)   Ten feet (3048 mm) or more from buildings having combustible exterior wall surfaces or buildings having noncombustible exterior wall surfaces that are not part of a 1-hour-fire-resistance-rated assembly or buildings having combustible overhangs. Exception:Canopies constructed in accordance with the International Building Code® providing weather protection for the fuel islands.

(C)   Such that all portions of the vehicle being fueled will be on the premises of the motor fuel-dispensing facility.

(D)   Such that the nozzle, when the hose is fully extended, will not reach within 5 feet (1524 mm) of building openings.

(E)   Twenty feet (6096 mm) or more from fixed sources of ignition.

(F)   Where compressed natural gas (CNG), LNG, or Hydrogen motor fuel-dispensing devices are installed beneath a canopy or within an enclosure, either the canopy or enclosure shall be designed to prevent the accumulation or entrapment of ignitable vapors, including provisions for natural or mechanical ventilation means, or all electrical equipment installed beneath the canopy or within the enclosure shall be suitable for Class I, Division 2 hazardous (classified) locations. Tank vents that are installed within or attached to the canopy or enclosure shall extend a minimum of 5 feet (1524 mm) above the highest projection of the canopy. Compression and storage equipment located on top of the motor fuel-dispensing facility canopies shall be in accordance with current State of Oklahoma adopted International Fire Code®, Section 2309 and International Building Code®, Section 406.

(4)   Section 2303.2.1 Local emergency disconnect switches. This section has been added to clarify when local emergency disconnect switches are required and when those switches are required to be interlocked with other local emergency disconnect switches. This section has been added to read: 2303.2.1 Local emergency disconnect switches.A local emergency disconnect switch, provided within 20 feet (6096 mm) of any dispensing unit shall be interlocked with all other dispensing units of the same fuel type and all other dispensing devices located within 20 feet (6096 mm) of the local emergency disconnect switch.

(5)   Section 2303.2.2 Emergency disconnect switch lighting. This section has been added to clarify the requirements for providing illumination for emergency disconnect switch lighting. This section has been added to read: 2303.2.2 Emergency disconnect switch lighting. Permanent lighting shall be provided during hours of operation in times of darkness at all dispensing devices, required signage, emergency disconnects and emergency shutdown controls. The lighting shall be designed to provide illumination such that all dispensing devices, required signage, emergency disconnect switches and emergency shutdown controls are visible to the operator.

(6)   Section 2304.3.7 Quantity Limits. This section has been modified to include an exception to the requirement that dispensing devices at unsupervised locations be programmed or set to limit uninterrupted fuel delivery to 25 gallons and require manual action to resume delivery. This section has been modified to read: 2304.3.7 Quantity limits. Dispensing equipment used at unsupervised locations shall comply with one of the following:

(A)   Dispensing devices shall be programmed or set to limit uninterrupted fuel delivery to 25 gallons (95 L) and require a manual action to resume delivery. Exception: Dispensing devices that are equipped with a listed breakaway device or equal approved by the Authority Having Jurisdiction. Such emergency breakaway device shall be installed, maintained and replaced in accordance with the manufacturer's instructions.

(B)   The amount of fuel being dispensed shall be limited in quantity by a preprogrammed card as approved.

(7)   Section 2307.3 Attendants. This section has been modified to add an exception to the requirement for an attendant when the dispensing equipment meets the guidelines of NFPA® 58 for a "Low emission transfer." This section has been modified to read: 2307.3 Attendants. Motor fuel-dispensing operations for LP-gas shall be conducted by qualified attendants or in accordance with Section 2307.7 by persons trained in the proper handling of LP-gas. Exception: When the dispensing equipment meets the guidelines of NFPA® 58 for "Low emission transfer" an attendant is not required.

(8)   Section 2307.4.1 Low emission transfer. This section has been added to clarify when the dispensing equipment meets the guidelines of NFPA® 58, Section 6.28.5 for "Low emission transfer" then the transfer distance shall be reduced by one-half. This section has been modified to read: 2307.4.1 Low emission transfer. When the dispensing equipment is installed in accordance with Section 6.28.5 of NFPA® 58 for "Low emission transfer," the transfer distance requirements in Table 6.5.2.1 and Section 6.25.4.3(1) of NFPA® 58 shall be reduced by one-half.

(9)   Section 2307.7 Public fueling of motor vehicles. This section has been modified to provide an exception to the owner's requirement to train users when the dispensing equipment meets the guidelines of NFPA® 58 for a "Low emission transfer." This section has been added to read: 2307.7 Public fueling of motor vehicles.

(A)   Self-service LP-gas dispensing systems, including key, code and card lock dispensing systems, shall be limited to the filling of permanently mounted containers providing fuel to the LP-gas powered vehicle.

(B)   The requirements for self-service LP-gas dispensing systems shall be in accordance with the following:

(i)   The arrangement and operation of the transfer of product into a vehicle shall be in accordance with this section and Chapter 61.

(ii)   The system shall be provided with an emergency shut-off switch located within 100 feet (30 480 mm) of, but not less than 20 feet (6096 mm) from dispensers.

(iii)   The owner of the LP-gas motor fuel-dispensing facility or the owner's designee shall provide for the safe operation of the system and the training of users. Exception: If the LP-gas motor fuel-dispensing facility meets the requirements of a low emission transfer station per NFPA® 58, then training of the users is not the responsibility of the facility.

(iv)   The dispenser and hose-end valve shall release not more than 1/8 fluid ounce (4 cc) of liquid to the atmosphere upon breaking the connection with the fill valve on the vehicle.

(v)   Portable fire extinguishers shall be provided in accordance with Section 2305.5.

(vi)   Warning signs shall be provided in accordance with Section 2305.6.

(vii)   The area around the dispenser shall be maintained in accordance with Section 2305.7.

(10)   Section 2308.3.2 Warning signs. This section has been added to include warning signs to be posted on Compressed Natural Gas (CNG) dispensing devices. This section has been added to read: 2308.3.2 Warning signs. Warning signs complying with Section 310 shall be posted as follows:

(A)   Warning sign(s) shall be conspicuously posted within sight of each dispenser in the fuel dispensing area and shall state the following:

(i)   No smoking

(ii)   Shut off motor

(iii)   Flammable Gas

(iv)   Natural gas vehicle fuel cylinders shall be inspected at intervals not exceeding 3 years or 36,000 miles to ensure safe operation of the vehicle

(v)   Natural gas fuel cylinders past their end-of-life date shall not be refueled and shall be removed from service.

(B)   A warning sign with the words "No smoking, flammable gas" shall be posted in all compressor and storage areas.

(C)   The lettering on the sign shall be legible and large enough to be visible from each point of transfer.

(D)   The service pressure of each dispenser shall be posted in view of the operator.

(11)   Section 2308.4 Private fueling of motor vehicles. This section has been modified to allow for the industry practice of utilizing CNG trailers that are not permanently attached to CNG powered vehicles and delete the requirement for the owner to ensure the user of a CNG powered vehicle to be properly trained on the vehicle's filling procedures. This section has been modified to read: 2308.4 Private fueling of motor vehicles.

(A)   Self-service CNG dispensing systems, including key, code and card lock dispensing systems, shall be limited to the filling of approved, permanently mounted fuel containers.

(B)   In addition to the requirements in Section 2305, the owner of a self-service CNG motor fuel-dispensing facility shall ensure the safe operation of the system.

(12)   Section 2308.7 Emergency shutdown control. This section has been modified to change the word "control" to "devices" in the section heading, clarify the requirements of the emergency manual shutdown device and provide an exception to those requirements for time-fill applications. This section has been modified to read: 2308.7 Emergency shutdown devices. A remote and local emergency manual shutdown device shall be provided. Upon activation, the emergency shutdown system shall automatically close valves between the main gas supply and the compressor and between the storage containers and dispensers, and automatically shut off the power supply to the compressor and the following associated devices: dispensing enclosures; remote pumps; power, control, and signal circuits; and electrical equipment in the hazardous (classified) locations surrounding the fuel dispensing enclosures. All labeled emergency shutdown devices shall be interconnected, whether required or not. Resetting from an emergency shutoff condition shall require manual intervention and the manner of resetting shall be approved by the Authority Having Jurisdiction. Exception: In time-fill applications, in lieu of a defined remote and local emergency manual shutdown device, an emergency manual shutdown device shall be provided within 50 feet (15 240 mm) of each fixed point of dispensing hose attachment and located inside and outside the compressor area within 10 feet (3048 mm) of the main access to the compressor area.

(13)   Section 2308.7.1 Remote emergency shutdown device. This section has been added to clarify the distance requirements remote emergency manual shutdown device placement and provide for an exception to the maximum distance required when located within line of sight of the dispensing enclosures and approved by the Authority Having Jurisdiction. This section has been added to read: 2308.7.1 Remote emergency shutdown device. A remote emergency manual shutdown device shall be located within 100 feet (30 480 mm) of, but not less than 20 feet (6096 mm) from all dispensing enclosures and shall be provided inside and outside the compressor area within 10 feet (3048 mm) of the main access to the compressor area. Exception: A remote emergency shutdown device may be located greater than 100 feet (30 480 mm) from one or more dispensing enclosures when within line of sight of the dispensing enclosures and approved by the Authority Having Jurisdiction.

(14)   Section 2308.7.2 Local emergency shutdown device. This section has been added to require a local emergency manual shutdown device be provided within 15 feet (4572 mm) of each dispensing enclosure. This section has been added to read: 2308.7.2 Local emergency shutdown device. A local emergency manual shutdown device shall be located within 15 feet (4572 mm) of each dispensing enclosure.

(15)   Section 2311.4.3 Ventilation. This section has been modified to clarify the point at which themechanical ventilation should be exhausted in a basement or pit. This section has been modified to read:2311.4.3. Ventilation. Where class I liquids or LP-gas are stored or used within a building having a basement or pit wherein flammable vapors could accumulate, the basement or pit shall be provided withmechanical ventilation in accordance with the International Mechanical Code®, at a minimum rate of 1 1/2 cubic feetper minute per square foot (cfm/square foot) [0.0008 cubic meters per (second meter squared)] taken from a point within 12 inches (305 mm) of the floor to prevent the accumulation of flammable vapors.

(16)   Section 2311.5 Preparation of vehicles for repair. This section has been modified to clarify Liquefied Natural Gas vehicles comply with Section 2311.5.1 as applicable. This section has been modified to read: 2311.5 Preparation of vehicles for repair.

(A)   For vehicles powered by gaseous fuels, the fuel shutoff valves shall be closed prior to repairing any portion of the vehicle fuel system.

(B)   Vehicles powered by gaseous fuels in which the fuel system has been damaged shall be inspected and evaluated for fuel system integrity prior to being brought into the repair garage. The inspection shall include testing of the entire fuel delivery system for leakage. Liquefied Natural Gas (LNG) vehicles shall comply with Section 2311.5.1 as applicable.

(17)   Section 2311.5.1 Liquefied Natural Gas (LNG) This section has been added to clarify the process needed to measure and record the pressure of the LNG vehicle fuel system prior to and on every third day while in the repair facility to ensure the fuel pressure does not exceed the maximum allowable fuel pressure. This section has been added to read: 2311.5.1 Liquefied Natural Gas. Liquefied Natural Gas (LNG) vehicle fuel system pressure shall be measured and recorded prior to entering the repair facility and at least every third day the vehicle remains in the building. Records shall be posted on the windshield of the vehicle. The maximum allowable system pressure shall be no more than 170 psig. Pressure above 170 psig shall be reduced by operating the vehicle, or limited venting outdoors as required.

(18)   Section 2311.7 Repair garages for vehicles fueled by lighter-than-air fuels. This section has been modified to include a third exception for repair garages where work is conducted only on vehicles that have been defueled and their systems purged with nitrogen gas and where there are standard operating procedures to document and maintain the fueling status throughout the repair operations are approved. This section has been modified to read: 2311.7 Repair garages for vehicles fueled by lighter-than-air fuels. Repair garages for the conversion and repair of vehicles that use CNG, liquefied natural gas (LNG), hydrogen or other lighter-than-air motor fuels shall be in accordance with Sections 2311.7 through 2311.7.2.3 in addition to the other requirements of Section 2311. Exceptions:

(A)   Repair garages where work is conducted only on vehicles that have been defueled and their systems purged with nitrogen gas, and where standard operating procedures to document and maintain the fueling status throughout the repair operations has been approved.

(B)   Repair garages where work is not performed on the fuel system and is limited to exchange of parts and maintenance not requiring open flame or welding on the CNG-, LNG-, hydrogen- or other lighter-than-air-fueled motor vehicle.

(C)   Repair garages for hydrogen-fueled vehicles where work is not performed on the hydrogen storage tank and is limited to the exchange of parts and maintenance not requiring open flame or welding on the hydrogen-fueled vehicle. During the work, the entire hydrogen fuel system shall contain a quantity that is less than 200 cubic feet (5.6 cubic meters) of hydrogen.

(19)   Section 2311.7.1.1 Design. This section has been modified to clarify exhaust outlets should be located within 18 inches (475 mm) of the high point of the room on exterior walls or the roof and to change the ventilation rate from not less than 1 cubic foot per minute per 12 cubic feet of room volume to 1 cubic foot per square foot of room area. This section has been modified to read: 2311.7. 1.1 Design.

(A)   Indoor locations shall be ventilated utilizing air supply inlets and exhaust outlets arranged to provide uniform air movement to the extent practical. Inlets shall be uniformly arranged on exterior walls near floor level. Outlets shall be located within 18 inches (457 mm) of the high point of the room in exterior walls or the roof.

(B)   Ventilation shall be by a continuous mechanical ventilation system or by a mechanical ventilation system activated by a continuously monitoring natural gas detection system or, for hydrogen, a continuously monitoring flammable gas detection system, each activating at a gas concentration of not more than 25 percent of the lower flammable limit (LFL). In all cases, the system shall shut down the fueling system in the event of failure of the ventilation system.

(C)   The ventilation rate shall be not less than 1 cubic foot per minute per square foot [0.0051 cubic meters per (second square meter)] of room area.

[Source: Added at 34 Ok Reg 2107, eff 9-15-17]