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Chapter 58 — FLAMMABLE GASES AND FLAMMABLE CRYOGENIC FLUIDS

Section 5809

California Fire Code (Title 24, Part 9) · 2022 edition · updated 2026-09-10 · California

CBSC: official editions, supplements and errata

Italicized text is a California amendment to the model code, as printed in the official publication.

MOBILE GASEOUS FUELING OF HYDROGEN-FUELED VEHICLES

5809.1 General. Mobile fueling of gaseous hydrogen into the

fuel tanks of hydrogen-fueled vehicles shall comply with Sec- tions 5809.1 through 5809.6. Mobile fueling of liquid hydro- gen is prohibited.

5809.1.1 Approval required. Mobile hydrogen-fueling operations shall not be conducted without first obtaining a permit and approval from the fire code official. Mobile hydrogen-fueling operations shall occur only at approved locations within the jurisdiction.

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5809.2 Roadside service vehicles. Roadside hydrogen service

vehicles shall comply with the following:

1. Roadside hydrogen service vehicles and hydrogen sup- ply tanks shall comply with US DOTn requirements for the transportation of hydrogen gas.

FLAMMABLE GASES AND FLAMMABLE CRYOGENIC FLUIDS

2. Individual hydrogen fuel supply tanks installed on roadside hydrogen service vehicles shall have a maxi- mum individual fuel capacity of 1,270 cubic feet (3 kg) of hydrogen. 3. The maximum aggregate amount of all hydrogen fuel in the supply tanks of roadside hydrogen service vehicles shall not exceed 4,233 cubic feet (10 kg) of hydrogen. 4. The roadside hydrogen service vehicle shall comply with all local, state and federal requirements. 5. The vehicle and its equipment shall be maintained in good repair.

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5809.3 Required documents. Documents developed to com-

ply with Sections 5809.3.1 through 5809.3.4 shall be submit- ted to the fire code official prior to approval of the permit application to conduct mobile gaseous hydrogen fueling operations. The required documents shall be maintained and updated when necessary by the permittee. Any modifications to an approved plan shall be submitted as needed and made available to the fire code official for review and approval.

5809.3.1 Safety and emergency response plan. The owner of a mobile hydrogen-fueling operation shall develop a written safety and emergency response plan that:

1. Establishes policies and procedures for fire safety, hydrogen leak prevention and control, personnel training and compliance with other applicable requirements of this code; and 2. Demonstrates readiness to respond to a hydrogen leak and carry out appropriate mitigation measures. 5809.3.2 Standard operating procedures. The owner of a mobile hydrogen-fueling operation shall develop a written fueling standard operating procedure (SOP) that:

1. Clearly and unambiguously describes the sequence of steps that a roadside gaseous hydrogen service vehicle operator needs to take to ensure safety of gaseous hydrogen fueling and compliance with the fueling protocol requirements; 2. Establishes a fueling protocol that is consistent with applicable requirements of a recognized national standard such as SAE J2601. Compliance with these requirements shall be demonstrated by a valid test record from an independent third party such as a recognized hydrogen-fueled vehicle OEM (Original Equipment Manufacturer). 5809.3.3 Training records. Persons performing dispens- ing operations shall be qualified to deliver and dispense gaseous hydrogen fuels and shall be trained in these stan- dards that are being created, the equipment manufac- turer’s training and the appropriate mitigating actions in the event of a fire or a hydrogen leak prior to beginning the dispensing operations. Re-training shall be performed periodically, but no less frequent than annually. Training records shall be maintained by the dispensing company and made available to the fire code official upon request. 5809.3.4 Site plan. Where required by the fire code offi- cial for other than emergency roadside service, a site plan shall be developed for each location at which mobile gas- eous hydrogen fueling occurs. The site plan shall be in suf-

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

FLAMMABLE GASES AND FLAMMABLE CRYOGENIC FLUIDS

ficient detail to indicate: all buildings, structures, lot lines, property lines and appurtenances on site and their use and function, and the scale of the site plan.

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5809.4 Mobile hydrogen-fueling areas. Areas where mobile

hydrogen fueling is allowed shall comply with Sections 5809.4.1 through 5809.4.3. 5809.4.1 Prohibited locations. Mobile hydrogen fueling shall not occur on public streets, public ways or inside buildings. Fueling on the roof level of parking structures or other buildings is prohibited.

Exception: Fueling hydrogen-fueled vehicles on a pub- lic street during a roadside emergency. 5809.4.2 Separation. The point of connection between the roadside hydrogen service vehicle and the hydrogen-fuel vehicle shall not be less than 15 feet (4572 mm) from buildings, property lines or combustible storage. 5809.4.3 Sources of ignition. Smoking, open flames and other sources of ignition, including un-rated electrical equipment, shall be prohibited within 25 feet (7620 mm) of fuel-dispensing activities. Signs prohibiting smoking or open flames within 25 feet (7620 mm) of the vehicle or the point of fueling shall be prominently posted on the mobile fueling vehicle. The engines of vehicles being fueled shall be shut off during fueling.

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5809.5 Equipment. Mobile hydrogen-fueling equipment shall

comply with Sections 5809.5.1 through 5809.5.4.

5809.5.1 Listed equipment. Roadside hydrogen service vehicle fuel-dispensing equipment and appurtenances shall be listed or approved by a recognized third party for its intended use. 5809.5.2 Dispensing hose. The dispensing hose shall be equipped with a breakaway coupling installed within 3 feet (1 m) from the dispensing nozzle. 5809.5.3 Hose reel. The dispensing hose shall be properly placed on an approved reel or in an approved compart- ment before moving the roadside hydrogen service vehi- cle. 5809.5.4 Pressure limit. Only dispensing of compressed gaseous hydrogen at partial pressure into the fuel tanks of hydrogen-fueled vehicles from on-board hydrogen supply tanks is allowed.

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5809.6 Operations. Mobile hydrogen-fueling operations

shall comply with Sections 5809.6.1 through 5809.6.6.

5809.6.1 Attendance. Roadside hydrogen service vehicles shall be constantly attended during fueling operations. 5809.6.2 Bonding cable. A bonding cable shall be securely connected between the mobile fueling vehicle and the fueled vehicle prior to the start of the dispensing oper- ation. 5809.6.3 Positioning of fueling vehicle. Roadside hydro- gen service vehicles shall be positioned with respect to vehicles being fueled to prevent traffic from driving over the delivery hose and between the transport vehicle and motor vehicle being fueled.

5809.6.4 Brakes. During fueling operations, mobile fuel- ing vehicle’s brakes shall be set, chock blocks shall be in place and warning lights shall be in operation. 5809.6.5 Fire extinguisher. A portable fire extinguisher with a minimum rating of 40-B:C shall be provided on the mobile, roadside service hydrogen-fueling vehicle with signage clearly indicating its location.

5809.6.6 Emergency communication device. Operators of mobile, roadside service hydrogen fueling vehicles shall have in their possession at all times an emergency communication device to notify the proper authorities in the event of an emer- gency during fueling.

58-8 2022 CALIFORNIA FIRE CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLE

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