The Ministry of Commerce and Industry of India published and enforced the “Boiler Operation Engineers’ Rules, 2025” on September 22, 2025, superseding the “Boiler Operation Engineers Rules, 2021.” Then, on September 29, the “Boiler Attendants Rules, 2025,” which supersedes the “Boiler Attendants Rules, 2011,” was also published and enforced. Under the Boilers Act 2025, which was revamped in 2025, entities using boilers are obligated to assign personnel to supervise the boilers’ operation. The two rules published thus supplement this obligation, establishing two types of boiler personnel namely “operation engineer” and “attendant,” who must pass a national examination administered by the authorities in order to be certified.
Differences between an operation engineer and an attendant are summarized below. Operation engineers have stricter certification requirements but are allowed to be responsible for a greater number of boilers. Attendants are further divided into First Class and Second Class Attendants, where the number of boilers they can be responsible for and their certification requirements differ slightly.
| Operation Engineer | Attendant | |
|---|---|---|
| Certification Name | Operation Engineer | First Class Attendant or Second Class Attendant |
| Limit of supervision of boilers | A single boiler, or two or more boilers connected in a battery, or many separate individual boilers within a radius of 50 m having a total heating surface more than 1000 m2 | First Class Attendant: A single boiler, or two or more boilers connected in a battery, or many separate individual boilers within a radius of 30 m having a total heating surface equal to or less than 1000 m2 Second Class Attendant: A single boiler having a total heating surface equal to or less than 200 m2 |
| Distance from the boilers | Within 100 m | Within 10 m |
| Eligibility Criteria | Age 23 and above, possesses a Mechanical, Electrical or Chemical etc. related bachelor‘s degree or diploma.
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First Class Attendant: Age 22 and above, holds a second class attendant certificate and fits one of the following criteria:
Second Class Attendant: Age 20 and above, has passed matriculation or equivalent examination, and fits one of the following criteria:
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Download the Rules from links below:
- Boiler Operation Engineers‘ Rules, 2025
https://egazette.gov.in/writeReadData/2025/266452.pdf - Boiler Attendants’ Rules, 2025
https://egazette.gov.in/writeReadData/2025/266584.pdf
India Revamps Rules on Boiler Operation Engineers and Attendants