The FDNY A-35 Certificate of Fitness is a legal requirement for individuals who supervise the operation and maintenance of air compressors in New York City. This certification is crucial for ensuring that high-pressure air systems are managed safely and in accordance with the strict provisions of the NYC Fire Code.
It is specifically designed for building superintendents, maintenance personnel, safety engineers, and industrial operators who work with systems that compress non-flammable gases (including air) to pressures exceeding 100 pounds per square inch (psi). Obtaining the A-35 certificate confirms that you possess the necessary knowledge to prevent hazardous situations and manage these powerful systems responsibly.
This certification program is centered on the principles of safe operation, routine inspection, and preventive maintenance of various types of air compressor units. There is no mandatory "course" to attend; rather, the "curriculum" is the official FDNY study booklet provided to applicants.
Candidates preparing for the exam must master several core areas. You must understand the mechanics of reciprocating, rotary, and centrifugal air compressors, including their operational limitations. The study material covers vital regulatory knowledge, including permit requirements and the general regulations outlined in the 2022 NYC Fire Code. Furthermore, the exam heavily emphasizes safety practices, such as proper ventilation, maintenance of oil levels, belt safety, and pressure monitoring to avoid catastrophic failures or fires.
The final exam for the A-35 Certificate of Fitness is administered exclusively as a computer-based, touchscreen examination in English. It consists of 20 multiple-choice questions.
You will have a maximum of 30 minutes to complete the test. A passing score of 70% is required, meaning you must answer at least 14 questions correctly to obtain your certificate. The results are provided immediately after you submit your answers. The exam is closed-book; you are not permitted to use any study guides, notes, or electronic devices during the session, though you are welcome to bring a paper dictionary if needed for translation support.
Effective study for the A-35 exam begins with downloading the free official study guide from the FDNY website. This document is your primary source of truth, and almost every question is derived directly from its contents.
Create detailed flashcards for key regulatory details, such as the exact psi thresholds that trigger permit requirements, and maintenance protocols. Simulate exam conditions by timing yourself while answering sample questions provided in the study guide. It is vital to note that all Certificate of Fitness applicants must now complete an application and pay the $25 fee through the FDNY Business portal online before visiting the testing center.
The official testing location is located at FDNY Headquarters. The address is 9 MetroTech Center, Brooklyn, NY. Exams are offered on a walk-in basis between 8:00 AM and 2:30 PM, Monday through Friday, excluding public holidays. You must bring a government-issued photo ID to enter the facility.
Earning the A-35 Certificate of Fitness provides a strong competitive advantage and is often a mandatory prerequisite for various technical and leadership roles in facilities management. The ability to safely supervise high-pressure compressor systems is highly valued in the NYC employment market.
This certification directly unlocks or enhances job opportunities for the following professional roles:
Building Superintendent
Maintenance Mechanic
Facility Maintenance Supervisor
Construction Site Foreman
Senior Building Engineer
HVAC Technician
Industrial Safety Inspector
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