An occupational health nurse (OHN) is a registered nurse who specializes in preventing and treating work-related injuries and illnesses while promoting overall employee wellness. These nurses blend clinical healthcare expertise with business knowledge, working inside companies to keep workers safe and help employers meet health and safety regulations. It’s a role that sits at the intersection of nursing, public health, and corporate operations.
What Occupational Health Nurses Do
The day-to-day work of an OHN is unusually varied compared to most nursing roles. On any given day, an occupational health nurse might treat an employee who injured their back on a warehouse floor, run a hearing screening program for workers exposed to loud machinery, review ergonomic setups at office workstations, or advise a company’s leadership on how to comply with federal workplace safety laws.
The American Association of Occupational Health Nurses identifies several core areas of practice:
- Health promotion and risk reduction: Designing programs that encourage healthier lifestyles and lower the risk of disease and injury. This can include wellness initiatives, smoking cessation support, stress management resources, and creating a work environment that balances productivity with employee wellbeing.
- Hazard detection and prevention: Identifying workplace hazards, monitoring their effects on employees, collecting health data, and implementing controls to reduce exposure. Depending on the industry, this could involve chemical hazards, biological hazards, repetitive strain risks, or psychological stressors.
- Case management: Coordinating care for employees who are injured or become ill, whether the condition is work-related or not. This includes navigating workers’ compensation claims, short-term and long-term disability benefits, and Family Medical Leave Act (FMLA) paperwork.
- Regulatory compliance: Helping employers follow the rules set by the Occupational Safety and Health Administration (OSHA), HIPAA privacy requirements, and other federal and state workplace laws.
OHNs also manage on-site health clinics, maintain medical records, track medication inventories, and run routine exams and testing programs. The ABOHN career guide notes that occupational health nurses “wear many hats” and need systems to keep clinical and business tasks coordinated. A big part of the job is simply building trust with employees during routine visits so they feel comfortable reporting symptoms or safety concerns before small problems become serious ones.
Where They Work
Occupational health nurses are found across a wide range of industries. Manufacturing and production facilities are among the most common settings, given the higher physical risk in those environments. But OHNs also work in hospitals, corporate offices, government agencies, oil and gas operations, construction companies, and large tech campuses. Some work as independent consultants, contracting with multiple employers rather than being employed by a single company.
Their role within an organization can vary significantly by setting. In a chemical plant, the focus might center on exposure monitoring and emergency preparedness. In a corporate headquarters, the emphasis could shift toward ergonomics, mental health resources, and chronic disease management. Larger companies often employ OHNs as part of a broader occupational health team that includes physicians, industrial hygienists, safety professionals, and occupational health psychologists.
How to Become an Occupational Health Nurse
The starting requirement is an active registered nurse (RN) license. From there, most OHNs gain experience in clinical nursing before transitioning into workplace health. Two professional certifications from the American Board for Occupational Health Nurses (ABOHN) serve as the recognized credentials in the field.
The Certified Occupational Health Nurse (COHN) requires an active RN license and 3,000 hours of occupational health nursing experience completed within the previous five years. The Certified Occupational Health Nurse-Specialist (COHN-S) has the same experience requirement but also requires a bachelor’s degree or higher in any field, not necessarily nursing. You can hold one credential or the other, but not both at the same time.
Both certifications require passing a 160-question computer-based exam with a three-hour time limit. Of those 160 questions, 135 are scored and 25 are unscored pretest items being evaluated for future exams. The exam covers clinical care, case management, workforce and workplace safety, health promotion, and regulatory knowledge.
Leadership and Business Roles
One thing that distinguishes occupational health nursing from most other nursing specialties is how deeply the role connects to business operations. OHNs don’t just provide care. They manage budgets for workplace health programs, develop company policies, supervise staff, and present data to leadership teams showing how health initiatives affect the bottom line. Reducing workplace injuries lowers insurance premiums and workers’ compensation costs. Effective wellness programs can reduce absenteeism and improve retention.
This means OHNs often hold titles that sound more corporate than clinical: case manager, corporate director, consultant, program manager. AAOHN describes them as “business partners” who contribute to corporate improvement while protecting the health of workers, worker populations, and surrounding communities. The scope of modern practice has expanded to include disease management, environmental health, and emergency preparedness for natural disasters, technological failures, and human-caused hazards.
Salary and Job Outlook
The Bureau of Labor Statistics does not break out occupational health nurses as a separate category, but the median annual wage for registered nurses overall was $93,600 as of May 2024. OHNs with certification and specialized experience often earn above the general RN median, particularly those in management or consulting roles within high-risk industries.
Employment for registered nurses as a whole is projected to grow 5 percent from 2024 to 2034, which is faster than the average for all occupations. Growing awareness of workplace mental health, an aging workforce with more chronic health conditions, and expanding regulatory requirements all point toward steady demand for nurses who specialize in occupational settings. Companies increasingly recognize that investing in employee health directly reduces costs and improves productivity, which keeps the role relevant across industries.