All individuals working with or near a laser system shall be authorized to do so only by the PI or Supervisor. Do not enter a room containing a laser unless authorized. Before operating a laser, remove all jewelry and verify that all protective equipment and required control measures are in place and functional. Ensure that a Class 3a, 3b and 4 laser cannot be energized inadvertently. Power shall be turned off when leaving the laser unattended.
Capacitors are to be discharged, if an inadvertent reactivation of the system is possible.
Never look directly into the laser beam. Laser protective eyewear is to be worn during the operation of the laser and during beam alignment. Beam alignment guidelines are to be performed at the lowest practical power levels. Enclose as much of the beam path as possible. Observe good housekeeping practices within the laser area.