Maintenance/Repair Facilities

As fleet managers and vehicle dealers begin widespread maintenance and service of natural gas vehicles, one of their first priorities is to ensure their maintenance facilities are modified to meet the code and safety requirements for maintaining and repairing NGVs. This is especially important because even if routine maintenance is being performed on a natural gas powered vehicle—such as an oil change or tire rotation—the maintenance facility must be able to safely accommodate the lighter-than-air fuel.

CNG and/or LNG vehicle maintenance and repair facilities must meet different code and safety requirements than those for gasoline and diesel. To help clients ensure safety and code compliance of existing or new maintenance facilities, NGVi offers comprehensive evaluations and consulting which consider the following as they relate to the appropriate codes:

  • Ventilation system
  • Heating system
  • Lighting system
  • Electrical system
  • Mechanical system
  • Building envelope
  • Internal structure

NGVi’s evaluation process for existing maintenance and repair facilities involves a two part process. 

Visual Inspection and Evaluation     

NGVi travels to each client site to conduct a detailed inspection and evaluation. The evaluation includes a complete review of the existing structurethe heating, ventilation, lighting, electrical and mechanical systems currently in use. We compare existing structure and systems to current codes and industry best practices, and determine both required and recommended modifications.  Required modifications, upgrades or equipment replacements are discussed with appropriate client representatives on site, where questions and clarifications are also handled.

Report of Findings and Recommendations

Following the physical audit, a written report detailing the modifications needed to safely accommodate vehicles with compressed natural gas fuel on-board is drafted and delivered to the client. This report includes photos, as well as specific code citations and a thorough description of the recommendations.

NGVi’s report is complete and can be used by a client-selected engineering or construction company to specify, price and complete the modifications.

Key Projects


Contact us to learn how NGVi can help you.


Upcoming Training

Level 1: NGV Essentials
and Safety Practices

March 6, 2018
Nashville, TN

Level 2: CNG Fuel System
Inspector Training

March 7-8, 2018
Nashville, TN

Level 1: NGV Essentials
and Safety Practices

March 26, 2018
Bakersfield, CA

Level 2: CNG Fuel System
Inspector Training

March 27-28, 2018
Bakersfield, CA

Level 3: Heavy-Duty NGV
Maintenance and Diagnostics Training

April 9-10, 2018
Glassboro, NJ

Level 2: CNG Fuel System
Inspector Training

April 11-12, 2018
Glassboro, NJ

Level 1: NGV Essentials
and Safety Practices

May 8, 2018
Olathe, KS

Level 2: CNG Fuel System
Inspector Training

May 9-10, 2018
Olathe, KS

Register Now »

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About NGVi

Natural Gas Vehicle Institute is North America’s leading provider of training and consulting on natural gas as a transportation fuel.

Our services address the full range of natural gas vehicle and fueling issues, including:

Technical consulting services – Sizing and designing compressed natural gas fueling stations, vehicle assessments and technical assistance for fleets, CNG fueling station troubleshooting, natural gas vehicle maintenance facilities upgrades, liquefied natural gas fleet and fueling management.

Technical training – NGV Essentials and Safety Practices, CNG Fuel System Inspector Training, Heavy-Duty NGV Maintenance and Diagnostics Training, Light-Duty NGV Maintenance and Diagnostics Training, CNG Fuel System Design and Installation Training, Essentials of CNG Station Operation and Maintenance Training, Essentials of CNG Station Planning, Design and Construction Training and CNG/LNG Codes and Standards Training for Fire Marshals and Code Officials.


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Participating Sponsors of Natural Gas Vehicle Institute
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  • Oasis
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