Ohio Administrative Code
Title 4123 - Bureau of Workers' Compensation
Chapter 4123-17 - General Rating for the State Insurance Fund
Section 4123-17-03 - Employer's experience rating plan
Current through all regulations passed and filed through September 16, 2024
(A) Definitions.
As used in this rule:
(B) An employer's premium rates shall be the manual classification base rates as provided under rules 4123-17-02, 4123-17-06, and 4123-17-34 of the Administrative Code for each of the employer's manual classifications except as modified by the employer's experience rating, and shall apply for the twelve-month period beginning on the first of July for private employers and for the calendar year beginning on the first of January for public employer taxing districts.
(C) An experience-rated employer's manual classification experience-modified rate shall be determined by multiplying its experience modification (EM) as defined in paragraph (D) of this rule times the manual classification base rate for each of the employer's assigned manual classifications.
(D) An employer's EM is determined in accordance with the following formula:
TML = Actual losses of the employer for the experience period, limited in accordance with paragraph (E)(1) of this rule.
TLL = Total limited losses = TEL multiplied by LLR
TEL = Total expected losses, determined by applying expected loss rate to the payroll of each manual classification in the employer's experience period, as provided in the appendix to rule 4123-17-05.1 of the Administrative Code for private employers and in the appendix to rule 4123-17-33.1 of the Administrative Code for public employer taxing districts. The total expected losses are then used to determine credibility group, credibility, and the maximum value of a loss.
LLR = Limited loss ratio, calculated for each credibility group within each industry group, as provided in appendix B to rule 4123-17-05 of the Administrative Code for private employers and appendix B to rule 4123-17-33 of the Administrative Code for public employer taxing districts.
C = Credibility given to an employer's own experience, determined by the employer's total expected losses, as provided in the appendix to rule 4123-17-05.1 of the Administrative Code for private employers and in the appendix to rule 4123-17-33.1 of the Administrative Code for public employer taxing districts.
(E) For a private employer that is not an alternate employer organization as defined in section 4133.01 of the Revised Code or a professional employer organization as defined in section 4125.01 of the Revised Code, and who is individually experience rated, individually retrospective rated, group retrospective rated, or in a deductible program under rule 4123-17-72 of the Administrative Code, the employer's EM as calculated in paragraph (D) of this rule is further adjusted by multiplying the EM adjustment factor as provided in appendix A to this rule and the employer's EM.
(F) For a public employer taxing district employer that is not an alternate employer organization as defined in section 4133.01 of the Revised Code or a professional employer organization as defined in section 4125.01 of the Revised Code, and who is individually experience rated, individually retrospective rated, group retrospective rated, or in a deductible program under rule 4123-17-72 of the Administrative Code, the employer's EM as calculated in paragraph (D) of this rule is further adjusted by multiplying the EM adjustment factor as provided in appendix B to this rule and the employer's EM.
(G) An employers' EM shall be subject to the following conditions and limitations: