Detached signs: signs for which, during the time frame from January 1, 2008, but prior to January 1, 2014, the Town of DeWitt Zoning Board of appeals has issued a variance, the Planning Board has issued site plan approval and a permit has been issued, provided the signs remain in conformance with the variance, site plan approval and permit. Signs for which, prior to January 1, 2008, the Town of DeWitt Zoning Board of Appeals has issued a variance, the Planning Board has issued site plan approval and a permit has been issued, if said variance, approval and/or permit are required by the Code, may remain on a lot as nonconforming signs.