CLSO Exam Information
Exam Reference Guide
The Exam Reference Guide contains a brief overview of the Areas of Practice
for the exam. It is intended to assist the candidate with study materials and information.
There are nine (9) areas of practice on the subject matter of laser safety. Each area of practice is broken down into tasks needed to be performed by an LSO. To assist you in understanding the subject matter, the areas of practice are provided here.
CLSO Areas of Practice
Area of Practice I - Lasers & Optics Fundamentals - 11%
Area of Practice II - Laser/Optical Radiation Bioeffects - 11%
Area of Practice III - Non-beam Hazards Associated with Lasers - 8%
Area of Practice IV - Laser Control Measures - 17%
Area of Practice V - Regulations and Standards - 14%
Area of Practice VI - Hazard Evaluation & Classification - 15%
Area of Practice VII - Maximum Permissible Exposures (MPE) - 11%
Area of Practice VIII - Laser Safety Program Administration - 10%
Area of Practice IX - Laser Measurements - 3%