Section 1: Laser Fundamentals Section 2: Laser Hazards Section 3: Laser Hazard Classification Section 4: Laser Control Measures Book traversal links for Laser Safety Training Guide Section 1: Laser Fundamentals › The Laser Safety Training Guide provides basic information for working safely with low, medium and high-powered lasers. It is intended to supplement, but not replace the Laser Safety Training that all Class 3 and 4 laser users are required to attend. Section 1: Laser Fundamentals Section 2: Laser Hazards Section 3: Laser Hazard Classification Section 4: Laser Control Measures Book traversal links for Laser Safety Training Guide Section 1: Laser Fundamentals ›