Refrigerating System Permit

Permit Description

A permit must be obtained from the Fire Department (FDNY) to maintain or operate a refrigerating system that:

  • Uses a group A1, A2, A3, B1, B2, or B3 refrigerant; or
  • Is mounted on or suspended from a roof or a ceiling; or
  • Is mounted on the floor and has a compressor which is 5 horse power or more.

Cost of Permit

  • $105.00 per compressor

Permit Length

  • A FDNY Inspector will visit the premises annually and perform an inspection prior to permit expiration

Application Requirements

  • Equipment Use Permit, other approved documentation, issued by the Department of Buildings for systems mounted on or suspended from a roof or a ceiling. To verify if your system requires an Equipment Use Permit, contact the Department of Buildings via 311 or through the Department of Buildings website.   


  • If the refrigerating or air conditioning equipment for systems using Group A1 refrigerant with a compressor with 50 HP or more; use 200 lbs or more of A2,A3,B1-B3 refrigerant; or a non-automatic system using 50 lbs or more of A2,A3,B1,B2-B3, a Certificate of Qualification for Refrigerating System Operating Engineer is required. 


Additional Information

Get the Following Fire Code Chapter

Need Help?

For assistance with applying for and receiving Permits and Letters of Approval on FDNY Business, contact the FDNY Customer Service Center by dialing 311, or via email at

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