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Minnesota Department of Labor and Industry

High-pressure-boiler rule change - Sept. 2, 2017

 

The Minnesota Rules for high-pressure boiler attendance requirements changed as of Sept. 2, 2017.

These rule changes affect high-pressure-licensed engineers and high-pressure-boiler owners.

The new rule coordinates the horsepower limits of current boiler operator licensing classifications with the attendance requirements for high pressure boilers of 0 to 50 horsepower, 51 to 500 horsepower, and boilers greater than 500 horsepower.

This rule change also clarifies the requirements for shifting a boiler from high pressure to low pressure and created additional requirements for the attendance of unoccupied boiler plants.

High pressure boilers 0 to 50 horsepower

  • New rule requirements:  A daily check on high pressure boilers from 0 to 50 horsepower. High pressure boilers from 0 to 50 require a daily check that must be documented in the boiler room log book.

  • Previous requirements:  A daily check on all high pressure boilers from 0 to 30 horsepower.

High pressure boilers 51 to 500 horsepower

  • New rule requirements:  Reduces attendance requirements for boilers up to 500 horsepower.

    Boilers up to 500 horsepower only need to be checked by a properly licensed engineer every two hours, but the check must be documented in the boiler room log book. This will allow the engineer more time to perform other work functions. Properly licensed engineers will be required to make log book entries each time they check the boiler in accordance with the law. 

    This rule change also allows high pressure boilers up to 500 horsepower to shift to low pressure operation, where the previous rule limited this to high pressure boilers of 300 horsepower.
  • Previous requirements:  Attendance requirements was limited to 300 horsepower.

High pressure boilers over 500 horsepower

  • New rule requirements:  Constant attendance is only required for boilers more than 500 horsepower. All boilers more than 500 horsepower require constant attendance, with only a 30 minute absence from the boiler plant for each shift and the properly licensed engineer must stay within 500 feet of the boiler plant at all times.

  • Previous requirements:  Constant attendance on high pressure boilers more than 300 horsepower.
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