Medical Surveillance Exams are required by OSHA under 29 CFR 1910 for certain types of employers, depending upon the nature of their processes and employee exposures. Therefore, certain Medical Surveillance Examinations such as Hazmat, HazWoper, Asbestos, Respiratory and others can be conducted if an employee has specific exposures to chemicals or hazardous materials (lead, asbestos, arsenic, cholinesterase, etc), loud noises, or other exposures to ensure they are properly using protective equipment and not suffering from any ill effects to their health because of their workplace exposures.