In the event of a full lab shutdown for an extended period of time, the lab manager and/or lab/research director will inspect the lab to ensure stabilization of all instruments, reagents, appliances, and supplies, and will follow the following checklist. The lab director will then submit a copy of the Temporary Laboratory Closure Information form to the DHD, building manager, and RLSS (rlss-help@arizona.edu), and post the appropriate Temporary Laboratory Closure notice on lab doors (this form and supporting information for this procedure are available here: https://research.arizona.edu/sites/default/files/data/Temporary%20Laboratory%20Closure%20procedure%202020_03_17%5B1%5D.pdf)

• Clean-up and store glassware/labware.
• All chemicals are returned to their proper storage location.
• All radioactive and hazardous materials are secured and returned to proper storage locations.
• Deactivate and shutdown all light sources, lasers, ultrasonic baths, cryogenic traps, and other devices not needed for default vacuum pumping.
• Set line valve configurations to default settings.
• Turn off chillers.
• Unplug heating tape, stir plates, unnecessary pumps, and all unessential electronic equipment.
• Close gas cylinders at the top of the tank and be sure tanks are secure.
• Clean up clutter.
• Check that refrigerators are tightly closed.
• Pull down the doors on the hoods; leave hoods running
• Check that all lab computers are turned on and connected to the internet so that they may be accessed remotely.
• Prepare hazardous chemical and/or radiological waste for disposal and arrange for pick-up.
• Turn off all microscope lightsources and cover microscopes.
• Turn off the office, lab, and hall lights. Lock the doors.
• Review Biological Safety and/or Chemical Hygiene Plan for the lab; contact RLSS at 520-626-6850 if you have any questions during temporary closure.
• Make plans for periodic (frequency depending on lab needs, e.g., once per week) lab checks to rule out or mitigate any developing problems.