For some applications, staff review of the COA is permitted. These Minor COA applications are reviewed and approved by Planning Department staff. Minor COA applications cannot be denied by Planning staff, so occasionally a Minor COA will be forwarded to the Historic Preservation Commission for review as a Major COA. The remainder of COA applications are reviewed and acted upon by the Historic Preservation Commission as Major COAs. Applications must be acted upon within 180 days of their being submitted and deemed complete. Detailed information regarding the level of review required for a particular scope of work can be found on the Development Services Center page at https://dsc.durhamnc.gov/174.Planning Applications & Materials web page.