Some of the common training courses taken by laboratory personnel at the University are listed below. For information on other training courses, please view available and upcoming courses at My EHS Training. EHS 101 WHMIS & Lab SafetyThis course is mandatory for all laboratory personnel. Laboratory WHMIS is a legal requirement for EHS 601 BiosafetyThis course is mandatory for all persons working with any biological agents. Examples of biological EHS 701 Radiation Safety & EHS 741 XThese courses are mandatory for all persons working with open sources of radiation and x-ray EHS 731 Laser SafetyThis course is mandatory for all persons working with open beam class 3B and class 4 lasers.