Rule 3501.
TABLE 1 EXAMPLES OF LOCATIONS WHERE CONFINED SPACES MAY OCCUR |
Bins |
Boilers |
Pits, such as elevator, escalator, pump, valve or other equipment |
Manholes, such as sewer, storm drain, electrical, communication, or other utility |
Tanks, such as fuel, chemical, water, or other liquid, solid or gas |
Incinerators |
Scrubbers |
Concrete pier columns |
Sewers |
Transformer vaults |
Heating, ventilation, and air-conditioning (HVAC) ducts |
Storm drains |
Water mains |
Precast concrete and other pre-formed manhole units |
Drilled shafts |
Enclosed beams |
Vessels |
Digesters |
Lift Stations |
Cesspools |
Silos |
Air receivers |
Sludge gates |
Air preheaters |
Step up transformers |
Turbines |
Chillers |
Bag houses |
Mixers, such as reactors |
Mich. Admin. Code R. 408.43501