The certification
Most injury work starts after someone is hurt. CWIS is built for the clinician or safety professional who works inside the workplace, where the risk builds, and helps the organization act on it.
Worksite injury prevention
The CWIS path covers injury prevention program design, early intervention and injury first aid within OSHA recordability rules, post-offer employment testing, and injury prevention built into new hire onboarding, on top of the shared Foundation.
What Matheson teaches
Every Matheson worksite, ergonomics, and return-to-work certification is built on the same four Foundation courses. They cover how work-related injury develops, the psychosocial side of injury and recovery, what a job really demands, and what injury data can tell you. Prevention starts there.
Understand the mechanisms behind workplace musculoskeletal disorders and how to identify, prevent, and address them in clinical and worksite settings.
Explore the psychological and social dimensions of workplace injury and recovery, and integrate evidence-based strategies into return-to-work planning.
Learn to quantify the physical and cognitive demands of any job and systematically match worker capabilities to job requirements.
Master the data-driven tools and metrics used to analyze injury trends, measure prevention effectiveness, and communicate results to stakeholders.
The Foundation you completed for another Matheson certification counts toward CWIS too. You take only the CWIS courses and complete its fieldwork review.
Courses & certification
CWIS follows the Matheson Blueprint: a shared Foundation, then Framework courses that build the specialty, then a Capstone. Take the full certification track or individual courses for continuing education. Each course page has the full syllabus, formats, and CE credits.
Shared by every Blueprint certification: Workplace Injury Mechanisms & WMSDs, Psychosocial Factors in Work Injury and Recovery, Job Demands Analysis, and Using Injury Data to Drive Prevention. About the Foundation
Then the CWIS path
Learn to design and implement practical worksite injury prevention programs that address organizational needs and improve worker outcomes.
Implement evidence-based early intervention strategies that reduce severity, duration, and cost of workplace injuries.
Learn to develop job-specific employment testing that safely and defensibly matches worker abilities to essential job demands.
Learn to integrate injury prevention, job-specific education, and safe work practices into the new hire onboarding process.
Apply the full CWIS curriculum to realistic workplace cases and develop practical, integrated solutions for injury prevention and workforce performance.
Complete knowledge checks across the track, then submit one Job Demands Analysis report and one Post-Offer Employment Test you have built. A Matheson instructor reviews both against Matheson credentialing criteria. Submissions that meet the standard earn the CWIS credential.
See the full requirementsProfessional development courses outside the certification path, for leaders, supervisors, and safety teams.
Who it's for
Clinicians who work on site, and the safety, HR, and operations people who keep a workforce healthy.
Courses are open to anyone doing this work. Certification requirements are set out on the CWIS page.
Resources
How work injuries happen, where the rules draw the line, and why trust is part of the intervention.
How work injuries happen, how injury data shows where to start, what a prevention program includes, and what keeps it working.
What does this worker need, and what do the rules require me to do?
That is why rapport is not just a soft skill in worksite injury prevention. It is part of the intervention itself.
Upcoming
Live worksite training on the Matheson schedule, in person or by live stream where offered.
No live CWIS dates are on the calendar yet. The training schedule lists every upcoming session, including the ergonomics and return-to-work tracks that share the Foundation.
The best injury is the one that never happens. Matheson training prepares you to find where risk is building, act early, and build programs the workplace keeps.
