When used as intended Class 1, 2, and 3R laser systems are generally low hazard devices; however some requirements still apply.

  1. As with any piece of equipment PIs/LSC are responsible for ensuring training on proper use of that equipment.
  2. Exposure to laser radiation must be kept below the Maximum Permissible Exposure (MPE) under all conditions of operation or maintenance. See the glossary for definitions.
  3. Laser systems must have the appropriate warning labels with the laser sunburst logotype symbol and the appropriate cautionary statement. See Chapter 7: Warning Signs and Equipment Labels.
  4. Removal of protective housing or system modification can increase a laser’s classification. Contact the LSO for review prior to servicing or system modification.
  5. Use of class 3R laser with telescopes, microscopes, or alignment devices should be reviewed by the LSO prior to operation.