Occupational health nursing is the care of workers, delivered at or through the workplace, and paid for by the employer. That last fact shapes everything else about the specialty.
What the work covers
Injury and illness care. Treating work injuries on site, deciding what can be handled there and what needs an emergency department, and managing the return to work.
Surveillance and screening required by regulation — hearing conservation, respiratory fitness and fit testing, blood lead levels, exposure monitoring in specific industries, and the medical evaluations that follow.
Case management of workers' compensation claims, coordinating treatment, tracking recovery, and arranging modified duty. This is a substantial part of many roles and has its own certification.
Prevention and health promotion — ergonomics, immunization, chronic disease programmes, and the wellness initiatives employers fund because they reduce medical spending.
Emergency preparedness for the site, including first response, chemical exposure, and evacuation planning.
Fitness for duty and accommodation. Assessing whether a worker can safely do a job, and what adjustments would let them — under disability law, and with a careful line around medical information the employer may not have.
Regulatory compliance. Federal regulation requires employers to record and report work-related injuries and illnesses on a defined schedule, and imposes specific medical surveillance for specific hazards. The nurse is frequently the person who knows what the requirements actually are.
The divided loyalty
The specialty's defining ethical problem is that the nurse is employed by one party and owes a professional duty to another.
An employer may want to know why a worker is on leave, whether a positive test explains an incident, or whether an injury is really work-related. The worker is the patient, medical information is confidential, and the nurse's obligation runs to them. Occupational health nurses spend a lot of their professional life explaining what they cannot disclose to the person who signs their pay cheque.
The nurse is also frequently the only clinician a worker sees at all, which makes the role quietly important in industries where employees have poor access to primary care. See nursing ethics and public health nursing.
Certification
The American Board for Occupational Health Nurses awards three credentials:
- COHN — certified occupational health nurse.
- COHN-S — the specialist credential.
- OHNCM — occupational health nurse case manager, for the workers' compensation and disability management side of the role.
Certification is maintained on a five-year cycle with annual renewal steps in between, and the board offers alternatives to work hours for candidates whose route in has been educational rather than experiential.
Where the jobs are
Manufacturing, construction, energy, transport, mining, warehousing and logistics, healthcare organizations running employee health services, government agencies, universities, insurers, and consulting firms.
Employee health inside hospitals deserves separate mention: it is occupational health nursing applied to healthcare workers, covering immunization programmes, tuberculosis screening, blood-borne pathogen exposure follow-up, respiratory fit testing, and the injury patterns of nursing itself. See infection prevention nursing and workplace violence in nursing.
The attraction is a corporate schedule — weekdays, no nights, no call — with pay that is competitive and sometimes better than hospital nursing, particularly in heavy industry. The role is also unusually autonomous: many sites employ a single nurse who runs the entire health programme.
Advanced practice in the field is recognized as an occupational health focus for adult and family nurse practitioners rather than as a separate population, which is why it appears as a sub-specialty rather than a licensure category. See nurse practitioners.
Related
Sources
- American Board for Occupational Health Nurses — on the COHN, COHN-S, and OHNCM credentials and the maintenance cycle. Accessed September 9, 2026.
- 29 CFR Part 1904: Recording and Reporting Occupational Injuries and Illnesses — Occupational Safety and Health Administration regulation. Accessed September 9, 2026.