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Construction Codes in Ohio

Construction codes and standards help in learning the structural design, materials, energy conservation, fire safety, electrical, plumbing, heating, cooling, ventilation, indoor air quality, radon, accessibility, safety, acoustics, disaster mitigation, green building, and more. To design, develop and support cost-effective building codes, standards, regulations, and state and federal legislation in the construction area it is very important to work with members and legislators.


Builders and contractors must be well informed about important developments and changes in the codes and standards arena and regulations affecting housing accessibility for persons with disabilities. Building codes provide minimum standards for safety, health, and general welfare including structural integrity, mechanical integrity including water supply, sanitation, ventilation and light, means of egress, fire prevention and control, and energy conservation.



The Administrative Code is designated as the "Ohio Building Code" for which the designation "OBC" is substituted. The provisions of the "Ohio Building Code", the "Ohio Mechanical Code", and the "Ohio Plumbing Code" are applicable to the construction, alteration, movement, enlargement, replacement, repair, maintenance, equipment, use and occupancy, location, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures.


As per 3791.04 of the Revised Code, no plans or specifications can be approved or inspection approval can be given unless the building represented by those plans or specifications would, if constructed, erected, repaired, or equipped according to those plans or specifications, comply with Chapters 3781. and 3791. of the Revised Code and any rules adopted by the board. An owner can go beyond the requirements of the "Ohio Building Code" in compliance with section 102.7.



There are some exceptions in the Ohio Building Code that are mentioned below:


  • This code applies to separate one-, two-, and three-family dwellings and structures accessory to those dwellings, only to the extent indicated in section 310 of this code
  • Buildings owned by and used for a function of the United States government
  • Buildings or structures which are incident to the use for agricultural purposes of the land on which said buildings or structures are located, provided such buildings or structures are not used in the business of retail trade; for the purposes of this section, a building or structure is not considered used in the business of retail trade if fifty per cent or more of the gross income received from sales of products in the building or structure by the owner or operator is from sales of products produced or raised in a normal crop year on farms owned or operated by the seller
  • Agricultural labor camps
  • Type A or Type B family day-care homes
  • Buildings or structures which are designed, constructed, and maintained in accordance with federal standards and regulations and are used primarily for federal and state military purposes where the U.S. secretary of defense, pursuant to 10 U.S.C. Sections 18233(A)(1) and 18237, has acquired by purchase, lease, or transfer, and constructs, expands, rehabilitates, or corrects and equips, such buildings or structures as he determines to be necessary to carry out the purposes of Chapter 1803 of the U.S.C
  • Revised Code
  • Building sewer piping
  • Manufactured homes constructed under "24 CFR Part 3280," "Manufactured Home Construction and Safety Standards" and within the scope of the rules adopted by the Ohio Manufactured Home Commission
  • Sewerage systems, treatment works, and disposal systems (including the tanks, piping, and process equipment associated with these systems) regulated by the legislative authority of a municipal corporation or the governing board of a county or special district owning or operating a publicly owned treatment works or sewerage system as stated in division (A) of section 6111.032 of the code
  • Portable electric generators and wiring supplying carnival and amusement park rides regulated by the Ohio Department of Agriculture


Construction Codes in Ohio

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