G-99 Storage, Handle and Use of Ammonia for Heat Treating and Duplicating Machines


The G-99 Certificate of Fitness is required for storage, handle and use of ammonia for heat treating and anhydrous ammonia with duplicating machines.

This Certificate of Fitness is valid only at a specific location and for the specific person to whom it is issued.

  •  New Application Fees: $25
  •  Renewal Fees: $15
  •  Renewal Cycle: 3 Years

Before You Submit Your Application

This Certificate of Fitness can be obtained by passing a written exam or qualifying for an exemption on the basis of education and experience.  All applicants should review the notice of exam and Study Materials.


Applicants who meet all the AIP requirements do not need to take the exam.

 Apply in Person

Applicants who need to take the exam must apply in person at:

9 MetroTech Center
Brooklyn, NY 11201

You must bring the following documents when applying.

For More Information

NYC Fire Department
Public Certification Unit
9 MetroTech Center, 1st Floor
Brooklyn, NY 11201
Phone: (718)999-1988

Email: pubcert@fdny.nyc.gov or call 311

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