(a) The provisions of the state’s Building Code shall apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures. No building or its equipment or accessories, to which the rules of the Board of Building Standards apply shall be erected, constructed, or installed, except in conformity with the rules of the Board.
(b) Exceptions include the following:
(1) Detached one-, two- and three-family dwellings and structures incidental to those dwellings which are not constructed as industrialized units shall comply with local residential codes, if any, adopted by the authority having jurisdiction. This exception does not include the energy provisions required in “Chapter 13, Energy Efficiency” of the OBC (see Ohio R.C. § 3781.06);
(2) Buildings owned by and used for a function of the United States government;
(3) 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 50% 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. (See Ohio R.C. §§ 3781.06 and 3781.061);
(4) Agricultural labor camps;
(5) Type A or Type B family day-care homes;
(6) 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. §§ 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 or she determines to be necessary to carry out the purposes of Chapter 1803 of the U.S.C., being 10 U.S.C. §§ 18231 et seq.; and
(7) Manufactured homes constructed under 24 C.F.R. Part 3280, Manufactured Home Construction and Safety Standards.
(OBC 101.2)