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FDNY CoF – Use of LPG or CNG in Engine Fuel Systems (G-22) Practice Test

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About this Exam

The FDNY Certificate of Fitness for Use of LPG or CNG in Engine Fuel Systems (G-22) is a critical safety certification for individuals working with alternative fuels in New York City. This designation is specifically designed for anyone who uses, stores, or handles Liquefied Petroleum Gas (LPG) or Compressed Natural Gas (CNG) to fuel engines, such as those found in forklifts, heavy machinery, or delivery vehicles. This certification ensures that operators and mechanics understand the unique risks and safety procedures associated with these highly flammable gases. Obtaining a G-22 CoF is not just a regulatory requirement; it is a vital step in maintaining a safe work environment and protecting yourself and the public from potential hazards.

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Additional Information

What the Course Entails and Exam Details

The preparation for the G-22 exam covers a wide array of topics focused on fire safety, regulatory compliance, and proper handling procedures. The exam syllabus includes: understanding the properties and hazards of LPG and CNG; identifying different types of containers and their components, such as control valves and pressure relief devices; proper methods for inspecting, filling, and connecting tanks; safe storage practices, including indoor limits and required separation distances; and procedures for identifying and responding to leaks or emergencies, including ice build-up. Additionally, you will learn the requirements for fire extinguishers and hot work safety in areas where these gases are used.


What to Expect in the Final Exam

The final exam for the G-22 Certificate of Fitness is a written, multiple-choice test administered by the FDNY. Candidates must demonstrate a clear understanding of the safety protocols and regulations outlined in the official study materials. The exam typically includes questions on safety distances, maximum storage capacities, equipment specifications, and emergency response. A minimum passing score of 70% is required to receive your Certificate of Fitness. The test is time-limited, designed to be completed within a reasonable timeframe, so thorough preparation is key. Upon passing, successful applicants often receive their physical CoF card on the same day.


How to Study and Exam Centers

The most effective way to prepare for the G-22 exam is to download and meticulously study the official FDNY G-22 Notice of Exam and Study Materials PDF, which is the primary source for all test questions. This should be supplemented by utilizing online practice exams to reinforce your knowledge and familiarize yourself with the question format. To take the exam, you must go in person to the FDNY Headquarters’ Public Certification Unit located at 9 MetroTech Center, 1st Floor, Brooklyn, NY 11201. The unit operates on a walk-in basis, Monday through Friday, from 8:00 a.m. to 2:30 p.m., so no appointment is necessary for most candidates. Remember to complete your application and pay the $25 fee online before arrival.


Job Opportunities from the Course

Earning your G-22 Certificate of Fitness can open up numerous career paths in industries that rely on LPG and CNG for their operations. This certification is highly valued by employers looking for individuals committed to safety and regulatory compliance. Potential job titles and roles enabled by this certification include:

  • Forklift Operator in warehouses, distribution centers, and construction sites

  • Vehicle Mechanic and Technician specializing in alternative fuel conversions and maintenance

  • Fleet Supervisor or Manager overseeing operations using LPG or CNG vehicles

  • Gas Station or Fueling Attendant at alternative fueling stations

  • Industrial Facility Safety Officer, responsible for managing hazardous materials

  • Heavy Equipment Operator in sectors like transportation or municipal services

  • Warehouse and Logistics Manager, coordinating the movement of goods with powered industrial trucks


  • Delivery Driver for companies utilizing alternative fuel delivery fleets

Frequently Asked Questions

This quiz contains a total of 0 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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