Safety Underground

Operational Readiness Clearence

  • The full set of info that constitutes official guidelines is in FESHM

  • Getting Started with ORCs PDF

  • ORC Hazard Identification Checklist PDF  This should be the last page of your MOU
    • Cryogenics
    • Electrical Equiptment
      • Electrical Safety ORC Review Tips PDF
    • Flammable Gasses or Liquids
    • Other Gas Emissions
      • example: Gas Chambers
      • Environmental Safety ORC Review Tips PDF
      • Greenhouse gases, air pollutants, or scrap, waste, etc. may trigger the need for a NEPA permit
      • The need for a NEPA permit may delay installation for three months
    • Hazardous/Toxic Materials
    • Pressure Vessels
    • Vacuum Vessels
    • Radioactive Sources
      • are they being used as a calibration (temporary use) or do you need them in the enclosure while beam is being run (permanent intallation)?
      • you will need Source Training
    • Target Materials
      • certain materials require additional training for handling
      • targets require additional safety reviews/inspections/approval
    • Lasers
    • Hazardous Chemicals
      • Any experiment using flammable, corrosive, reactive, or toxic materials will need to post the Material Safety Data Sheets at the entrances of the enclosure.
      • MSD sheets can be found here.
    • Mechanical Structures


  • A Fire-Life Safety Review is part of the ORC review. Guidelines
    • The use of combustables underground should be limited. If there are questions regarding the combustibility of building materials (cables, foam board, platics, etc.), please obtain a samble of the material and contact the Underground Coordinator. There is a system in place to test these materials.
    • All racks of electronic equipment to be installed underground must have a rack protection system which would disable all power to the rack including any UPS incase of fire.

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Life safety and what it means for installations - fire loads, equipment storage, house-keeping. Links to Access Section, which covers training for access.