1. A method of waiving design errors, comprising: by a computing device: receiving layout design data for a layout design; receiving at least one waiver region identification item for identifying regions of layout design data in which one or more detected design errors are to be designated as false errors to be waived from being reported during physical verification; employing the at least one waiver region identification item to identify regions in the received layout design data; and modifying the received layout design data to include waiver items associated with the identified waiver regions; designating the identified regions of the received layout design data as waiver regions in which the one or more detected design errors are to be designated as false errors.