NGVi is now more than natural gas. Welcome to the new Alternative Fuel Vehicle Institute – AFVi!

How To Decommission a Natural Gas Vehicle

A technician leans over to inspect the cylinder on a natural gas vehicle.

Vehicles that run on compressed natural gas (CNG) are gaining popularity within the alternative fuels industry, thanks in no small part to Cummins latest X15N engine, the adoption of CNG vehicles by major logistics carriers, the availability of renewable natural gas (RNG), and the proliferation of natural gas fueling stations. But as these fleets grow, […]


Janesville, WI, USA, June XXX, 2023 – ANGI Energy Systems, a Vontier company (NYSE: VNT) and leading supplier of innovative solutions in compressed natural gas and hydrogen refuelling systems, proudly announces its 40th anniversary with the company celebrating four decades of growth and continued excellence at its state-of-the-art manufacturing facility in Janesville, Wisconsin.  Since the […]

Press Release: Valvoline-NGVi Partnership Presents 10 Technicians With Free Heavy-Duty Training

A graduation cap icon is displayed in between the logos for Valvoline and NGVi.

Press Release: Valvoline-NGVi Partnership Presents 10 Technicians With Free Heavy-Duty Training Ten lucky vehicle technicians were recently awarded free heavy-duty natural gas vehicle training thanks to a Valvoline-NGVi partnership raffle. The raffle took place last month at Valvoline’s booth during the ACT Expo in Anaheim, California. Winners were officially announced on May 25th. They now […]

Press Release: NGVi Launches AFVi To Meet Growing Demand for Alternative Fuel Training

An NGVi employee stands at their ACT booth while display boards announce AFVi, the Alternative Fuel Vehicle Institute.

Natural Gas Vehicle Institute (NGVi), the only ASE-accredited training provider in the entire alternative fuels industry, is proud to announce that it is launching the Alternative Fuel Vehicle Institute (AFVi). This news was shared at the Advanced Clean Transportation (ACT) Expo, currently being held at the Anaheim Convention Center in California. As an expansion of […]

Are You Confused by the Requirements of NFPA 52 and NGV 6.1?

NFPA 52 is displayed as the shadow of NGV 6.1

Until recently, the primary code governing CNG fuel system installations has been NFPA 52. However, the 2023 version of NFPA 52 has introduced ANSI/CSA NGV 6.1 as a standard that also governs these installations, and, by default, inspection requirements. The team at NGVi has performed a thorough analysis and comparison of both documents, and has […]

Live-Virtual or E-Learning: Which Online CNG Training Is Better?

A CNG technician sits before a computer screen with the training options for live-virtual or e-learning.

CNG training is essential to all technicians who work on or near natural gas-powered vehicles. That training may be as fundamental as learning the safety requirements that are unique to natural gas vehicles, or as involved as exploring the complexities and intricacies of heavy-duty CNG fuel systems and engines. Regardless of what level of knowledge […]

2 Critical Elements for Operating and Maintaining a CNG Transit Fleet

Miami-Dade CNG transit buses rest in a parking lot while the sun sets.

Besides appropriate safety policies and protocols, a CNG transit fleet depends on two critical elements to be safe and successful: 1) obtaining comprehensive training for all technicians and support teams; and 2) performing appropriate fuel system inspections at the proper intervals. Here’s a full breakdown for each, and how to apply them to your own […]

CNG Inspection Interval Changes Approved by US Department of Transportation

A close-up view of NGVi's "Passed" CNG Cylinder Label.

Changes to CNG cylinder inspection intervals required by the U.S. Department of Transportation’s Federal Motor Vehicle Safety Standard (FMVSS) No. 304, “Compressed natural gas fuel container integrity,” were published in the Federal Register February 11, 2022, and become effective March 13, 2022. The compliance date is March 14, 2023, but early compliance is permitted. The […]