Licenses granted must be displayed in a conspicuous place in the engine or boiler room. Boiler plants operated by a contract operating engineer must have a copy of the operating engineer's license of each person who may be operating the boiler posted in each boiler room.
Minn. R. Part 5225.0900
Statutory Authority: MS s 175.171; 183.41; 183.42; 183.44; 183.465; 183.466; 183.54; 183.62; 326B.958; 326B.964; 326B.966; 326B.982; 326B.998