EHS Insider Blog

Understanding the Experience Modification Rate (EMR) and Tools to Help Improve

How Does the EMR Fit Into the Calculation of Workers' Compensation Premiums? The EMR is determined via a standard formula that considers company size, company class codes and the cost, frequency and duration of prior claims. Class codes associate the company with similar companies within an industry. Class codes come from the NCCI, if the company is within one of the 39 states that use the NCCI standards.
Topics: Experience Modification Rate