DCC Documents

Incident Reports By Site or Type:
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Upcoming Events
  • LIGO Safety Steering Committee Meetings usually occur the 3rd Thursday of the month. The next LIGO Lab Safety Steering Committee Meeting (SSCM # 128) will take place on Thursday, 21 February 2019 @ 1400PDT/1600CDT/1700EDT.
    SSCM #128 Agenda
  • SSCM #127 Meeting Minutes - Posted 01.28.2019
  • The annual Caltech safety review is tentatively scheduled for Wed/Thu 13/14 February 2019
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Safety Notices
February Checklists - Updating and Using
LIGO Stop Work Policy
LIGO Stop Work Form
LIGO Lab Stop Work Orders in Effect
Event Description/DCC Date Imposed Date Lifted
LLO GV-11 was hard-closed and torque clutch has tripped, not allowing gate to be moved
27 Nov 2018 in force
Owing to two safety incidents reported on 11/20, and the restricted time for remaining chamber-closing and vacuum activities prior to the Thanksgiving holiday break (concerns of rushing), we called a stop work for all LVEA and VEA activities at LHO
26 Nov 2018 26 Nov 2018
LIGO Stop Work Order Archive
SURF Student Escort Restrictions
Caltech LIGO SURF Student Safety Information
  • SURF students are not authorized to act as guides in LIGO laser facilities.
LIGO Satellite Phones
  • The satellite phones are specifically available and used as a resource for emergency communications between the two observatories and LIGO management located at Caltech.
Make Safety Everyone's Concern
  • LIGO Safety would like to ask all personnel to look out for your fellow workers, including contract personnel who may be performing work at one of our facilities. If you happen to notice an unsafe act or believe that something doesn't seem safe, report it immediately to a supervisor. Watching out for each other is the best way to ensure a safe work environment.
    *** Remember... LIGO Lab Safety has a dedicated system for reporting these types of issues, which is called the Good Catch report. Whenever a good catch is reported, it is investigated just as if an incident did occur. This valuable information is then documented and communicated to the LIGO community in the form of a lesson learned, in an attempt to prevent an injury or damages from occurring.

Work Permits LHO