Supervise fire fighters who control and extinguish municipal fires, protect life and property, and conduct rescue efforts.

Directly supervise and coordinate activities of members of police force.

Directly supervise and coordinate activities of correctional officers and jailers.

Maintain a sterile field to provide support for physicians and nurses during endoscopy procedures. They prepare and maintain instruments and equipment. They obtain specimens.

Draw blood for tests, transfusions, donations, or research. They explain the procedure to patients and assist in the recovery of patients with adverse reactions.

Prepare, sterilize, install, or clean laboratory or healthcare equipment. They perform routine laboratory tasks and operate or inspect equipment.

Evaluate and advise individuals to assist recovery from or avoid athletic related injuries or illnesses, or maintain peak physical fitness. They provide first aid or emergency care.

Review, evaluate, and analyze work environments and design programs and procedures to control, eliminate, and prevent disease or injury caused by chemical, physical, and biological agents or ergonomic factors. They conduct inspections and enforce adherence to laws and regulations governing the health and safety of individuals. This includes environmental protection officers.

Conduct electroneurodiagnostic (end) tests such as electroencephalograms, evoked potentials, polysomnograms, or electronystagmograms. They perform nerve conduction studies.

Perform medical tests in a laboratory environment for use in the treatment and diagnosis of diseases in animals. They prepare vaccines and serums. They prepare tissue samples, take blood samples, and execute laboratory tests. They clean and sterilize instruments and materials and maintain equipment and machines. They assist a veterinarian during surgery.