The training to become a laser safety officer in Germany differs not only insignificantly from the required training according to V-NISSG in Switzerland. Therefore, the training to become a laser safety officer in Switzerland is not recognised for the performance of laser shows. With the validity of the V-NISSG, either a certificate of competence level 1 or level 2 must be available if lasers of class 1M, 2M, 3R, 3B or 4 are used for events with an audience.