What the Course Entails and Exam Details

This examination is not a course, but a verification of knowledge based on specific study materials provided by the FDNY. The C-91 Certificate of Fitness program covers several core competencies crucial for the safe management of hazardous materials.

Key topics included in the official FDNY C-91 Study Materials are:

• Hazardous Materials Classification: Understanding the nine classes of hazardous materials and their associated risks.

• Placarding and Labeling: Recognizing DOT placards, GHS labels, and NFPA 704 diamonds to identify hazards instantly.

• Storage and Handling: Regulations for the proper segregation, containment, and maximum allowable quantities (MAQ) of various substances.

• Emergency Response: Knowing the appropriate actions to take during a spill, leak, or fire involving hazardous chemicals.

• Safety Data Sheets (SDS): Interpreting technical safety information and making informed decisions on handling.

• NYC Fire Code Compliance: Specific administrative and operational code requirements relevant to hazardous materials in NYC.

The primary and recommended study resource is the official C-91 Notice of Exam and Study Materials document, which contains the complete syllabus.

What to Expect in the Final Exam

The C-91 exam is a comprehensive assessment conducted exclusively in person at the FDNY's official testing facility. It does not include a practical component.

• Exam Format: The test consists of 20 multiple-choice questions.

• Passing Score: You must achieve a minimum score of 70%, which means correctly answering at least 14 out of 20 questions.

• Time Limit: Applicants are allocated a maximum of 2 hours to complete the examination.

• Exam Fee: The fee is $25, which must be paid online before arriving at the testing center.

• Identification: All applicants must bring two forms of government-issued photo identification (e.g., driver's license, passport, State ID).

• Specific Rules: All tests are "walk-in" with no appointment required, however, the online application and payment must be completed beforehand. You are not allowed to use any electronic devices, including phones, during the exam. If you fail, you must reapply, pay the fee, and retake the test.

How to Study and Exam Centers

The most effective way to prepare for the FDNY Haz-Mat C-91 exam is to master the official documentation. The FDNY provides a free, downloadable Study Materials packet for the C-91 Certificate of Fitness on their official website (NYC.gov/fdny).

• Download and Review: Obtain the "C-91 Notice of Exam and Study Materials" and read it thoroughly, multiple times.

• Focus on Key Concepts: Pay close attention to definitions, the specific characteristics of the nine hazard classes, placarding systems, and emergency notification procedures.

• Use Practice Exams: Take advantage of practice questions on general hazardous materials topics, specifically those that emphasize classifications, symbols, and response mnemonics (like TRACEMP or use of the ERG).

The only authorized exam center for this FDNY Certificate of Fitness is the FDNY headquarters:

FDNY Public Certification Unit9 MetroTech Center, 1st FloorBrooklyn, NY 11201

Testing is available Monday through Friday (excluding legal holidays) between 8:00 AM and 2:30 PM. Ensure you have completed your online application and paid the fee prior to your visit.

Job Opportunities from the Course

Earning the FDNY Hazardous Materials (C-91) Certificate of Fitness is a prerequisite for many specialized safety and operational roles across New York City. Holding this certification makes you a valuable asset to employers by ensuring compliance with the NYC Fire Code.

The C-91 certification can unlock a variety of career paths, including the following job titles:

• Chemical Laboratory Technician

• Facility Safety Coordinator

• Hazardous Materials (Haz-Mat) Handler

• Laboratory Supervisor (non-production)

• Industrial Hygienist / Environmental Health Specialist

• Operations Manager in Chemical Manufacturing

• Facility Engineer in Hospitals or Tech Centers

• Chemical Storage and Inventory Specialist

• Safety Compliance Officer (NYC-based)

• Receiving and Distribution Clerk for Hazardous Materials