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This website publishes administrative rules on their effective dates, as designated by the adopting state agencies, colleges, and universities.

Rule 4123-17-45 | Initial computation.


(A) The hazard group for an employer shall be determined as follows:

(1) The employer's experience-rated premium is totaled for each hazard group for the most recently completed policy year. The employers hazard group is the group with the highest percentage of premium for the recently completed policy year;

(2) For an employer new to Ohio without a reported payroll, the hazard group is based on the employers application for workers compensation coverage;

(3) Hazard groups are defined as follows:

(a) For private employers, appendix C to rule 4123-17-72 of the Administrative Code; and

(b) For public employer taxing districts, appendix E to rule 4123-17-72 of the Administrative Code.

(B) The bureau shall notify the employer of the estimated minimum premium percentage based on the limits selected by the employer and the payroll of the employer. The premium rates on the payroll reports received by the employer for the policy year will be calculated using the minimum premium per cent and the premium sized adjustment described in rule 4123-17-03.3 of the Administrative Code.

Last updated February 18, 2022 at 11:48 AM

Supplemental Information

Authorized By: 4121.12, 4121.121
Amplifies: 4123.29, 4123.34
Five Year Review Date:
Prior Effective Dates: 7/1/1988, 10/2/1990, 7/1/1997, 7/21/2008, 7/1/2015, 7/1/2018