The building codes adopted by Lyon County state that no building or structure shall be used or occupied until the building official has issued a certificate of occupancy. For residential permits the inspector’s report and signed inspection record card indicating final approval serve as the certificate of occupancy. Commercial projects require a signed Certificate signed by the building official that indicates the permitted occupancy classification of the facility. The building inspector has some discretion, but generally all work covered under the permit must be completed in order to receive approval to occupy. A "Temporary C of O" may be issued under certain circumstances. A written request providing the length of time and explaining the reason behind the need for a Temporary C of O along with the $500.00 application fee must be submitted to the Building Official for consideration. Once a permit is “signed off” it is closed and no further inspections are authorized. Any change in occupancy classification requires an additional permit and subsequent C of O.