Building Energy Code

June 18, 2023


Much of the information presented in this summary is drawn from the U.S. Department of Energy’s (DOE) Building Energy Codes Program and the Building Codes Assistance Project (BCAP). For more detailed information about building energy codes, visit the DOE and BCAP websites.

The Board of Building Standards is the primary state agency that protects the public's safety by: adopting rules governing the construction, repair, and rehabilitation of buildings in the state; certifying municipal, township, and county building departments to administer the code; and establishing minimum standards for construction materials.

The 2016 Ohio Building Code (OBC), adopted by the Board of Building Standards (BBS), is mandatory statewide for commercial buildings and became effective January 1, 2017. The BBS adopted the 2019 Residential Code of Ohio (RCO) which is based on the 2018 IECC with state specific amendments, and took effect on July 1, 2019.

Compliance is determined through plan review and inspection at the local level by the local certified building department. If there is no certified building department within a jurisdiction, the Ohio Department of Commerce Division of Industrial Compliance reviews and approves plans for commercial construction.

Program Overview

Implementing Sector: State
Category: Regulatory Policy
State: Ohio
Incentive Type: Building Energy Code
Web Site:
Start Date:
Eligible Renewable/Other Technologies:
  • Comprehensive Measures/Whole Building
Residential Code: 2019 Residential Code of Ohio (RCO), State-developed code based on 2018 IECC. REScheck is available to show compliance.
Commercial Code: 2016 Ohio Building Code (OBC), based on the 2012 IECC and ASHRAE 90.1-2010 with amendments.
Code Change Cycle: No set schedule. The most recent residential code update was adopted in 2012 and took effect in 2013. The most recent non-residential code update became effective January 1, 2017.


Name: Steven Regoli
Organization: Ohio Department of Commerce
Address: 6606 Tussing Road
Reynoldsburg, OH 43068-9009
Phone: (614) 644-2613

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.