Arkansas Impairment Rating Guide
Arkansas workers' compensation uses the 4th Edition of the AMA Guides to the Evaluation of Permanent Impairment under A.C.A. § 11-9-522.
Which Edition?
AMA Guides Edition 4th Edition
Statutory Authority
A.C.A. § 11-9-522
PPD Calculation
Statutory Maximum Weeks 450 weeks
PPD weeks = WPI% × 450 weeks for unscheduled injury. Scheduled members have fixed week values.
Notes
Arkansas statute specifies the AMA Guides 4th Edition.
Frequently Asked Questions
Which edition of the AMA Guides does Arkansas use?
Arkansas uses the 4th Edition of the AMA Guides to the Evaluation of Permanent Impairment under A.C.A. § 11-9-522. The applicable edition is generally determined by the worker's date of injury; consult counsel for cases that straddle effective-date transitions.
How is permanent partial disability calculated in Arkansas?
PPD weeks = WPI% × 450 weeks for unscheduled injury. Scheduled members have fixed week values.
Where can I find a certified impairment rater in Arkansas?
Browse our directory of certified impairment raters listed for Arkansas. 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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