Oregon Impairment Rating Guide
Oregon workers' compensation uses a state-specific permanent impairment schedule under ORS 656.214, Oregon Administrative Rules (OAR) Chapter 436, Division 035, Disability Rating Standards (April 2026).
Which Edition?
AMA Guides Edition State-Specific Schedule
Statutory Authority
ORS 656.214, Oregon Administrative Rules (OAR) Chapter 436, Division 035, Disability Rating Standards (April 2026)(opens in a new tab)
PPD Calculation
Oregon uses its own Disability Rating Standards (OAR 436-035) with separate impairment and work disability components. Impairment benefit = impairment value × 100 × statewide average weekly wage. If the worker cannot return to regular work, work disability = impairment value modified by age, education, and adaptability × 150 × weekly wage at injury. Oregon does not use a statutory weeks schedule.
Notes
Oregon does not adopt the AMA Guides. Permanent impairment is rated under the Director's Disability Rating Standards.
Frequently Asked Questions
How does Oregon rate permanent impairment?
Oregon uses its own state-specific permanent impairment schedule under ORS 656.214, Oregon Administrative Rules (OAR) Chapter 436, Division 035, Disability Rating Standards (April 2026) rather than mandating an AMA Guides edition. See the notes below for the controlling framework.
How is permanent partial disability calculated in Oregon?
Oregon uses its own Disability Rating Standards (OAR 436-035) with separate impairment and work disability components. Impairment benefit = impairment value × 100 × statewide average weekly wage. If the worker cannot return to regular work, work disability = impairment value modified by age, education, and adaptability × 150 × weekly wage at injury. Oregon does not use a statutory weeks schedule.
Where can I find a certified impairment rater in Oregon?
Browse our directory of certified impairment raters listed for Oregon. View the directory →
Does this information constitute legal or medical advice?
No. This page provides general statutory and methodological information for educational purposes only. Statutes change, case law shifts controlling interpretation, and individual cases turn on facts beyond what reference material can capture. Consult qualified legal counsel and a credentialed rating physician for any specific matter.
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