Impairment Standard
Legal basis: LC §4660.1
Definition
A set of criteria and protocols that define how permanent impairment is measured and rated. California's impairment standard is the AMA Guides to the Evaluation of Permanent Impairment, 5th Edition, mandated by LC §4660.1 for all injuries occurring on or after January 1, 2005. Standardized impairment measurement ensures consistency across evaluators.
Key Facts About Impairment Standard in 2026
QME Physicians in CA
~2,500
Evaluation Fee Range
$2,500-$4,000
Report Deadline
30 days
Avg AI-Assisted Turnaround
14 days
Related Terms
Frequently Asked Questions
What is a Impairment Standard?
A set of criteria and protocols that define how permanent impairment is measured and rated. California's impairment standard is the AMA Guides to the Evaluation of Permanent Impairment, 5th Edition, mandated by LC §4660.1 for all injuries occurring on or after January 1, 2005. Standardized impairment measurement ensures consistency across evaluators.
What is the legal basis for Impairment Standard in California workers' compensation?
Impairment Standard is governed by LC §4660.1 under California workers' compensation law. This statute defines the requirements, procedures, and standards for impairment standard in the workers' compensation system as of 2026.
How is impairment standard calculated in California?
Impairment Standard in California workers' compensation is typically determined using the AMA Guides to the Evaluation of Permanent Impairment, 5th Edition (2001). QME and AME physicians use standardized rating methods to ensure consistency across evaluations.