If the work or use described in any permit has not yet begun within six months from the date of issuance thereof, the permit shall expire.  If the work described in any permit has not been substantially completed within such expiration date of permit, the permit shall expire and be revoked by the Administrator, and written notice thereof shall be given to the persons affected, together with notice that further work as described in the cancelled permit shall not proceed until a new permit has been obtained or an extension granted by the Administrator.
(Ord. 1989-81.  Passed 1-2-90.)