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Hazardous Locations By Classification

Coming Soon!

Typical Class I Locations Include:

  • Petroleum refining facilities 
  • Dip tanks containing flammable or combustible liquids 
  • Dry cleaning plants 
  • Organic coating manufacturing plants
  • Paint spray booths 
  • Spray finishing areas (residue must be considered) 
  • Petroleum dispensing areas 
  • Solvent extraction plants 
  • Plants manufacturing or using pyroxylin 
  • (nitro-cellulose) type and other plastics 
  • (Class II also) 
  • Locations where inhalation anesthetics are used 
  • Utility gas plants and operations involving storage and handling and liquefied petroleum and natural gas 
  • Aircraft hangars and fuel servicing areas


Typical Class II Locations Include:

  • Grain elevators and bulk handling facilities 
  • Magnesium and aluminum powder manufacture and storage facilities 
  • Starch manufacture and storage facilities 
  • Fireworks manufacture and storage facilities 
  • Flour and feed mills 
  • Pulverized sugar and cocoa packaging and handling areas 
  • Coal preparation and handling facilities 
  • Spice grinding plants 
  • Confectionery manufacturing plants


Typical Class III Locations Include:

  • Woodworking plants 
  • Textile mills 
  • Cotton gins and cotton seed mills 
  • Flax producing plants