New York City
For New York City, governing body is New York City Department of Buildings; statute citation is New York State Industrial Code Rules 4 and 14; power boiler inspection interval is annual internal and external inspections (steam); annual external inspections and triennial internal inspections (hot-water); low-pressure boiler inspection interval is annual external inspections and triennial internal inspections (steam); annual external inspections and internal inspections every five years (hot-water); accepted inspector types is Department inspectors conduct all first inspections. For subsequent inspections, commissioned insurance inspectors. Local Law 62/91 also permits NYC-licensed master plumbers, oil burner installers, and high-pressure boiler operators to conduct annual low-pressure inspections, verified against its source on 2026-08-05.
- State
- New York City verified
- Governing body
- New York City Department of Buildings verified
- Statute citation
- New York State Industrial Code Rules 4 and 14 verified
- Power boiler inspection interval
- annual internal and external inspections (steam); annual external inspections and triennial internal inspections (hot-water) verified
- Low-pressure boiler inspection interval
- annual external inspections and triennial internal inspections (steam); annual external inspections and internal inspections every five years (hot-water) verified
- Accepted inspector types
- Department inspectors conduct all first inspections. For subsequent inspections, commissioned insurance inspectors. Local Law 62/91 also permits NYC-licensed master plumbers, oil burner installers, and high-pressure boiler operators to conduct annual low-pressure inspections verified
- Exemptions
- Boilers subject to inspection or control of a federal government agency. Boilers located on farms and used solely for agricultural purposes. Steam or vapor boilers operating at a gage pressure of not more than 15 psi, located in a dwelling occupied by fewer than six families and less than 350,000 BTU input. Hot-water boilers located in a dwelling occupied by fewer than six families and less than 350,000 BTU input. per nationalboard.org
What the source says
Governing body: The New York City Department of Buildings administers inspections under New York State Industrial Code Rules 4 and 14. Authorized inspector types: Department inspectors conduct all first inspections. For subsequent inspections, New York City accepts commissioned insurance inspectors. Local Law 62/91 also permits NYC-licensed master plumbers, oil burner installers, and high-pressure boiler operators to conduct annual low-pressure inspections. Inspection frequency: High-pressure steam boilers require annual internal and external inspections. High-pressure hot-water boilers require annual external inspections and triennial internal inspections. Low-pressure steam boilers require annual external inspections and triennial internal inspections, while low-pressure hot-water boilers require annual external inspections and internal inspections every five years.
— chardonlabs.com, retrieved 2026-08-05
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
Governing body
chardonlabs.com says governing body is New York City Department of Buildings, as of 2026-08-05.
Governing body: The New York City Department of Buildings administers inspections under New York State Industrial Code Rules 4 and 14. Authorized inspector types: Department inspectors conduct all first inspections. For subsequent inspections, New York City accepts commissioned insurance inspectors. Local Law 62/91 also permits NYC-licensed master plumbers, oil burner installers, and high-pressure boiler operators to conduct annual low-pressure inspections. Inspection frequency: High-pressure steam boilers require annual internal and external inspections. High-pressure hot-water boilers require annual external inspections and triennial internal inspections. Low-pressure steam boilers require annual external inspections and triennial internal inspections, while low-pressure hot-water boilers require annual external inspections and internal inspections every five years.
https://www.chardonlabs.com/resources/commercial-boiler-inspection-regulations-by-state/
nationalboard.org says governing body is City of New York, Department of Buildings, as of 2026-08-05.
High-pressure steam boilers: One annual external inspection; One annual internal inspection. High-pressure, high-temperature hot-water boilers: One annual external inspection; One internal inspection triennially. If equipped with manholes and handholes, an annual inspection is required. Such boilers shall be inspected externally annually approximately six months after each internal inspection. Low-pressure steam boilers: External inspection annually; One internal inspection triennially. Low-pressure, hot-water boilers: External inspection annually; One internal inspection quinquennially (every five years). New boilers shall be hydrostatically tested upon installation and prior to service. Boilers shall be tested to 60 psi or 1-1/2 times the design pressure, whichever is greater.
https://www.nationalboard.org/PrintAllSynopsis.aspx?Jurisdiction=Select
Statute citation
chardonlabs.com says statute citation is New York State Industrial Code Rules 4 and 14, as of 2026-08-05.
Governing body: The New York City Department of Buildings administers inspections under New York State Industrial Code Rules 4 and 14. Authorized inspector types: Department inspectors conduct all first inspections. For subsequent inspections, New York City accepts commissioned insurance inspectors. Local Law 62/91 also permits NYC-licensed master plumbers, oil burner installers, and high-pressure boiler operators to conduct annual low-pressure inspections. Inspection frequency: High-pressure steam boilers require annual internal and external inspections. High-pressure hot-water boilers require annual external inspections and triennial internal inspections. Low-pressure steam boilers require annual external inspections and triennial internal inspections, while low-pressure hot-water boilers require annual external inspections and internal inspections every five years.
https://www.chardonlabs.com/resources/commercial-boiler-inspection-regulations-by-state/
nationalboard.org says statute citation is New York State Industrial Code Rules 4 and 14., as of 2026-08-05.
High-pressure steam boilers: One annual external inspection; One annual internal inspection. High-pressure, high-temperature hot-water boilers: One annual external inspection; One internal inspection triennially. If equipped with manholes and handholes, an annual inspection is required. Such boilers shall be inspected externally annually approximately six months after each internal inspection. Low-pressure steam boilers: External inspection annually; One internal inspection triennially. Low-pressure, hot-water boilers: External inspection annually; One internal inspection quinquennially (every five years). New boilers shall be hydrostatically tested upon installation and prior to service. Boilers shall be tested to 60 psi or 1-1/2 times the design pressure, whichever is greater.
https://www.nationalboard.org/PrintAllSynopsis.aspx?Jurisdiction=Select
Power boiler inspection interval
chardonlabs.com says power boiler inspection interval is annual internal and external inspections (steam); annual external inspections and triennial internal inspections (hot-water), as of 2026-08-05.
Governing body: The New York City Department of Buildings administers inspections under New York State Industrial Code Rules 4 and 14. Authorized inspector types: Department inspectors conduct all first inspections. For subsequent inspections, New York City accepts commissioned insurance inspectors. Local Law 62/91 also permits NYC-licensed master plumbers, oil burner installers, and high-pressure boiler operators to conduct annual low-pressure inspections. Inspection frequency: High-pressure steam boilers require annual internal and external inspections. High-pressure hot-water boilers require annual external inspections and triennial internal inspections. Low-pressure steam boilers require annual external inspections and triennial internal inspections, while low-pressure hot-water boilers require annual external inspections and internal inspections every five years.
https://www.chardonlabs.com/resources/commercial-boiler-inspection-regulations-by-state/
nationalboard.org says power boiler inspection interval is High-pressure steam boilers: One annual external inspection; One annual internal inspection. High-pressure, high-temperature hot-water boilers: One annual external inspection; One internal inspection triennially (annually if equipped with manholes and handholes)., as of 2026-08-05.
High-pressure steam boilers: One annual external inspection; One annual internal inspection. High-pressure, high-temperature hot-water boilers: One annual external inspection; One internal inspection triennially. If equipped with manholes and handholes, an annual inspection is required. Such boilers shall be inspected externally annually approximately six months after each internal inspection. Low-pressure steam boilers: External inspection annually; One internal inspection triennially. Low-pressure, hot-water boilers: External inspection annually; One internal inspection quinquennially (every five years). New boilers shall be hydrostatically tested upon installation and prior to service. Boilers shall be tested to 60 psi or 1-1/2 times the design pressure, whichever is greater.
https://www.nationalboard.org/PrintAllSynopsis.aspx?Jurisdiction=Select
Low-pressure boiler inspection interval
chardonlabs.com says low-pressure boiler inspection interval is annual external inspections and triennial internal inspections (steam); annual external inspections and internal inspections every five years (hot-water), as of 2026-08-05.
Governing body: The New York City Department of Buildings administers inspections under New York State Industrial Code Rules 4 and 14. Authorized inspector types: Department inspectors conduct all first inspections. For subsequent inspections, New York City accepts commissioned insurance inspectors. Local Law 62/91 also permits NYC-licensed master plumbers, oil burner installers, and high-pressure boiler operators to conduct annual low-pressure inspections. Inspection frequency: High-pressure steam boilers require annual internal and external inspections. High-pressure hot-water boilers require annual external inspections and triennial internal inspections. Low-pressure steam boilers require annual external inspections and triennial internal inspections, while low-pressure hot-water boilers require annual external inspections and internal inspections every five years.
https://www.chardonlabs.com/resources/commercial-boiler-inspection-regulations-by-state/
nationalboard.org says low-pressure boiler inspection interval is Low-pressure steam boilers: External inspection annually; One internal inspection triennially. Low-pressure, hot-water boilers: External inspection annually; One internal inspection quinquennially (every five years)., as of 2026-08-05.
High-pressure steam boilers: One annual external inspection; One annual internal inspection. High-pressure, high-temperature hot-water boilers: One annual external inspection; One internal inspection triennially. If equipped with manholes and handholes, an annual inspection is required. Such boilers shall be inspected externally annually approximately six months after each internal inspection. Low-pressure steam boilers: External inspection annually; One internal inspection triennially. Low-pressure, hot-water boilers: External inspection annually; One internal inspection quinquennially (every five years). New boilers shall be hydrostatically tested upon installation and prior to service. Boilers shall be tested to 60 psi or 1-1/2 times the design pressure, whichever is greater.
https://www.nationalboard.org/PrintAllSynopsis.aspx?Jurisdiction=Select
Accepted inspector types
chardonlabs.com says accepted inspector types is Department inspectors conduct all first inspections. For subsequent inspections, commissioned insurance inspectors. Local Law 62/91 also permits NYC-licensed master plumbers, oil burner installers, and high-pressure boiler operators to conduct annual low-pressure inspections, as of 2026-08-05.
Governing body: The New York City Department of Buildings administers inspections under New York State Industrial Code Rules 4 and 14. Authorized inspector types: Department inspectors conduct all first inspections. For subsequent inspections, New York City accepts commissioned insurance inspectors. Local Law 62/91 also permits NYC-licensed master plumbers, oil burner installers, and high-pressure boiler operators to conduct annual low-pressure inspections. Inspection frequency: High-pressure steam boilers require annual internal and external inspections. High-pressure hot-water boilers require annual external inspections and triennial internal inspections. Low-pressure steam boilers require annual external inspections and triennial internal inspections, while low-pressure hot-water boilers require annual external inspections and internal inspections every five years.
https://www.chardonlabs.com/resources/commercial-boiler-inspection-regulations-by-state/
nationalboard.org says accepted inspector types is Inspections made by inspectors employed by insurance companies and commissioned by the department are accepted in lieu of inspections made by a department inspector., as of 2026-08-05.
High-pressure steam boilers: One annual external inspection; One annual internal inspection. High-pressure, high-temperature hot-water boilers: One annual external inspection; One internal inspection triennially. If equipped with manholes and handholes, an annual inspection is required. Such boilers shall be inspected externally annually approximately six months after each internal inspection. Low-pressure steam boilers: External inspection annually; One internal inspection triennially. Low-pressure, hot-water boilers: External inspection annually; One internal inspection quinquennially (every five years). New boilers shall be hydrostatically tested upon installation and prior to service. Boilers shall be tested to 60 psi or 1-1/2 times the design pressure, whichever is greater.
https://www.nationalboard.org/PrintAllSynopsis.aspx?Jurisdiction=Select
Sources
- chardonlabs.comhttps://www.chardonlabs.com/resources/commercial-boiler-inspection-regulations-by-state/
- nationalboard.orghttps://www.nationalboard.org/PrintAllSynopsis.aspx?Jurisdiction=Select