IEC 60825:2022, which is a Technical Report, serves as a guide to the employer, the responsible person, the laser safety officer, the laser user and other persons involved, on the safe use of lasers and laser equipment classified as laser class 1C, 3B or 4 in interventional applications of laser beams on humans, excluding use of consumer products. This document explains the control measures recommended for the safety of the laser user, patients, clients, staff, maintenance personnel and others. Engineering controls which form part of the laser equipment or the installation are also briefly described to provide an understanding of the general principles of protection.