The Board of Building Standards officially certified the Tuscarawas County Building Department for the unincorporated areas (Townships) of Tuscarawas County on November 1, 2004. The cities of Dover and New Philadelphia were added on January 11, 2005. Effective September 20, 2004, Holmes County Commissioners passed a resolution to form an agreement between Tuscarawas and Holmes counties. Under this agreement, ECOBA is given authority to administer and enforce the Ohio Building Code within Holmes County.
Commercial and industrial construction projects within these jurisdictions that require plan approval are now submitted to the ECOBA rather than the State of Ohio, Department of Commerce, Division of Industrial Compliance.