OSHA Confined Spaces Advisor

Examples of Confined Spaces

OSHA found many types of confined spaces be relatively common when analyzing the probable impact of the permit spaces rule. The examples are grouped by major types of industries.

Select the category of industry for which you wish to see examples of typical confined spaces.

• Agriculture Services
• Stone, Clay, Glass, Concrete
• Oil and Gas Extraction
• Primary Metals Industry
• Food and Kindred Products
• Fabricated Metals Products
• Tobacco Products
• Machinery (ex. electrical) Manufacturing
• Textile Mill
• Electrical Equipment Products
• Wood Products
• Transportation Equipment Manufacturing
• Furniture
• Paper Products
• Instruments and Related Products
• Printing and Publishing
• Miscellaneous Manufacturing
• Chemicals/Allied Products
• Electric, Gas and Sanitary Services
• Petroleum Refining
• Other Establishments
• Rubber Products
• Leather Products

• Conveyor Enclosures
• Diked Area Around Storage Tanks
• Spray Tanks
• Tanks

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• Tanks

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• AIR Scrubber
• Batch Cooker
• Bins
• Bleachers
• Boilers
• Caustic Soda Tanks
• Clay Hopper
• Conditioners
• Continuous Cooker
• Conveyor Enclosures
• Crude Oil Tank Cars/Trucks
• Deodorizers
• Desoventizer/Toaster
• Dowtherm Bpilers
• Dust Collectors
• Extractors
• Finished Product Tank Cars/Trucks
• Flour Silos
• H2 Reformer Furnace
• H₂SO₄ Tanks
• Heated Lard Tanks
• Heated Liquid Sugar Bins
• Holding Bins
• Hoppers
• Hydrogenators
• Kettles
• Meal Bins
• Meal Dryers
• Mixers
• Oil Tanks
• Oilseel Silos and Tanks
• Ovens
• Pipes
• Pits
• Protein Bins
• Sewer Manholes
• Sewers
• Silos
• Starch Dust Collectors
• Steam Biolers
• Tallow Tanks
• Tank Trucks
• Tanks
• Vats
• Vessels

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• Cooling Tower
• Dryer
• Dust Collector
• Electrical Manhole
• Heat/Ventilation Ducts
• Hoppers
• Rotating Drum
• Sanding Drum
• Sewer
• Tank

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• A/C Duct Work
• Autoclaves
• Bale Press
• Bleaching Vat
• Chemical Sewer
• Chemical Tanks/Vats
• Conveyor Enclosure
• Drying Oven
• Dust Tunnel
• Dye Beck
• Dye Sewer
• Finishing Frame
• Fuel Tank
• Rope Shaft
• Sizing Tank
• Steam Bioler
• Vat
• Water Baler
• Water Tank
• Water Tower

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• Boilers
• Conveyor Enclosures
• Dust Collectors
• Dust Vaults
• Tanks
• Water Tanks

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• Boilers
• Conveyor Enclosures
• Dust Bin
• Dust Collector
• Furnace
• Hoppers
• Pit
• Precipitator
• Sewer
• Silo
• Tanks
• Vats

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• Adhesive Mixer
• Adhesive Tanks
• Ash Collection Silo
• Bins
• Bleach Tanks
• Boilers
• Chemical Storage Tanks
• Chip Silos
• Coal Bunkers
• Conveyors
• Cyclone System
• Digesters
• Dust Collectors
• Formaldehyde Tanks
• Furnace
• Hoppers
• Hydrapulpers
• Machine Chests
• Machine Dryers
• Mix Tanks
• Mixers
• Package Boilers
• Precipitators
• Reservoir
• Sewers
• Silos
• Solvent/Ink Bulk Storage
• Solvent Recovery
• Starch Silo
• Tanks
• Pits
• Wells

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• Air Pollution Equipment
• Boiler
• Ink Tank
• Solvent Tank

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• Bins
• Boilers
• Cooling Towers
• Cyclones
• Diked Areas
• Dust Collectors
• Fermentors
• Water Tanks/Towers
• Fixed Tanks
• Mixers
• Pits
• Portable Tanks
• Portable Vats
• Precipitators
• Process Vats
• Process Vessels
• Scrubbers
• Sewers
• Silos
• Spray Dryers
• Tank Wagons
• Tanks
• Vats
• Vessels
• Waste Recovery Tanks

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• Blowing Stills
• Boilers
• Furnaces
• Kettles
• Large Pipes
• Pits
• Silos
• Tanks
• Vaults
• Vessels

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• Bins
• Boilers
• Conveyor Enclosure
• Dust Collectors
• Furnaces
• Hoppers
• Mixers
• Ovens
• Shredders
• Silos
• Tanks
• Vats
• Vessels

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• Process Vessels
• Sludge Pits

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• Aggregate Bins
• Augers
• Bins
• Cement Silos
• Conveyor Enclosures
• Crushers
• Dryers
• Dust Collectors
• Furnaces
• Hoppers
• Mills
• Mixers
• Silos

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• Bins
• Blast Furnaces
• Boilers
• Coal Bins
• Coke Bins
• Dust Collectors
• Fume Trails
• Furnaces
• Gas Lines 1' TO 5' Diameter
• Gas Stoves
• Hoppers
• Manholes--Electrical and Water Control
• Pipes
• Pits
• Raw Material Storage Bins
• Rail Tank Cars
• Slag Pits
• Soaking Pits
• Solvent Tanks
• Storage Tanks
• Tanks
• Tunnels
• Vaults
• Water Treatment Tanks
• Wells

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• Blast Recovery Pit
• Boilers
• Conveyor Enclosures
• Dikes
• Dust Collectors
• Furnace Vaults
• Furnaces
• Pits
• Precipitators
• Sewers
• Tanks
• Tunnels
• Vats
• Vessels
• Wells

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• Boilers
• Conveyor Enclosures
• Dust Collectors
• Hoppers
• Pits
• Silos
• Tanks
• Tunnels
• Vaults

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• Air Handler
• Bioler
• Conveyor Enclosure
• Degreaser
• Duct Work
• Dust Collector
• Furnaces
• Gas Cabinet
• Mixer
• Plating/Rinse Tank
• Process Equipment
• Scrubber
• Sewer
• Storage Bin
• Storage Tank
• Tank
• Trench
• Vault
• Well

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• Aircraft Spaces
• Bag Houses
• Bins
• Boilers
• Chimneys/Stacks
• Chip/Coolant Pits
• Closed Tanks
• Communication Vaults
• Conveyor Enclosures
• Degreasers
• Diked Areas
• Dust Collectors
• Equipment Pits
• Furnaces
• Heat Treat Tanks
• Hoppers
• HVAC System
• Mixers
• Open Surface Tanks
• Pipes
• Pits
• Postfueled Wing Tanks
• Precipitators
• Prefueled Wing Tanks
• Sewers
• Silos
• Tanks
• Test Chambers
• Tunnels
• Vats
• Vaults
• Vessels
• Wells

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• Boiler
• Dryers
• Dust Collector
• Scrubber
• Sewer
• Tanks
• Vats

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• Chemical Pits
• Chemical Tanks
• Compacter
• Degreasing Tank
• Diked Areas
• Dust Collector
• Hoppers
• Mixer
• Pits
• Plating Tanks
• Sewers
• Silo
• Tanks
• Vaults
• Waste Collector
• Waste Pits
• Waste Tanks

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• Bar Screens
• Boilers
• Chambers
• Conveyor Enclosures
• Digesters
• Diked Areas
• Drums
• Dust Collectors
• Hoppers
• Incinerator
• Manholes
• Mixers
• Pipes
• Pits
• Precipitators
• Pump Stations
• Regulators
• Sewers
• Silos
• Sludge Pits
• Tanks
• Tunnels
• Vessels
• Wells
• Wet Wells

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• Manholes
• Bins
• Dust Collectors
• Head Houses
• Hoppers
• Manure Pits
• Pits
• Silos
• Tanks
• Tank Cars/Trucks
• Boilers
• Water Towers
• Fuel Tanks
• Moving Stair Motor Room
• Sewers
• Water Heaters
• Surge Tanks
• Stacks
• Chimneys
• Washers
• Autoclave
• Incinerator
• Precipitator
• Silo
• Vats
• Vessels

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