N.Y. Comp. Codes R. & Regs. tit. 12, § 14-1.2
Inspection frequency.
Department of Labor
No high pressure boiler shall be operated until an internal and external inspection has been made by the commissioner or an insurance company. There shall be regular inspections of every boiler subject to the provisions of this Part made at intervals no less frequent than the following:
| Internal | External | |
|---|---|---|
| Low Pressure Steam Boilers | 3 years | 2 years |
| Low Pressure Hot Water Boilers | 5 years | 2 years |
| High Pressure Steam Boilers | 1 year | 1 year2 |
| High Pressure Hot Water Boilers | 3 years1 | 1 year2 |