Requirements, license levels, and the issuing authority, sourced from Connecticut's official board.
Connecticut does license stationary engineers: the Department of Consumer Protection issues the OE-2 Operating Stationary Engineer license, which is required to operate and monitor heating, air conditioning and refrigeration systems and boilers, including steam or water boilers operating above 15 pounds per square inch gauge. The boilers and hot water heaters themselves are regulated separately by the Office of the State Building Inspector in the Department of Administrative Services under the Safety Code for Boilers and Hot Water Heaters.
| Requirements | The OE-2 license covers operation, which the state defines as a work discipline employing technical knowledge and expertise in the manipulation, adjustment, control and monitoring of heating, air conditioning and refrigeration systems and boilers, and which includes heating systems with a steam or water boiler maximum operating pressure greater than 15 pounds per square inch gauge and air conditioning or refrigeration systems exceeding 50 horsepower. The scope allows incidental maintenance such as daily blow downs, chemical treatment sampling and adjustment, cleaning fuel filters and strainers, changing fuel nozzles and refrigeration tasks such as cleaning condenser strainers and purging absorber air, but it does not allow any replacement or revisions to existing piping, and the work must be performed as an employee of a licensed contractor or of a building owner. Applicants qualify through an apprenticeship completed with the Connecticut Department of Labor, through equivalent experience and training, or through an equivalent license held in another jurisdiction, and every individual applicant must take an examination, with exam fees charged separately by the exam vendor at registration. The application fee is $90.00 and is non-refundable. The department's trade license type list words the same credential as OE2, Heating, Piping and Cooling Operating Engineer Journeyperson. |
| Reciprocity | The Department of Consumer Protection states that Connecticut does not have reciprocal agreements with any other jurisdiction. The same application page nonetheless publishes an out of state license route for applicants who already hold an equivalent license in another jurisdiction, so an out of state applicant applies through that route rather than under a reciprocity agreement. |
| Renewal | All heating, cooling and sheet metal work licenses expire annually on August 31, and the journeyperson renewal fee is $120.00. A trade license may be reinstated provided a completed reinstatement form and all applicable fees are submitted not later than three years after the date the license expired; beyond three years the applicant must reapply and retest. No continuing education requirement is stated on the department's Operating Stationary Engineer license pages. |
| Notes | Connecticut does license stationary engineers: the Department of Consumer Protection issues the OE-2 Operating Stationary Engineer license, which is required to operate and monitor heating, air conditioning and refrigeration systems and boilers, including steam or water boilers operating above 15 pounds per square inch gauge. The boilers and hot water heaters themselves are regulated separately by the Office of the State Building Inspector in the Department of Administrative Services under the Safety Code for Boilers and Hot Water Heaters. |
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Sources: portal.ct.gov, portal.ct.gov, portal.ct.gov, portal.ct.gov. Always confirm current requirements with the issuing authority.
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