Every permit shall expire at the end of the period of time set out in the permit. If the permittee is unable to commence or to complete the work within the specified time, such person shall, prior to the expiration date, present in writing to public works a request for an extension of time, setting forth the reasons for the requested extension. If, in the opinion of public works, such an extension is necessary and not contrary to the public interest, the permittee may be granted additional time for the completion of the work being done. (Ord. 7(2006) § 7: Ord. 43(1978) § 1: Ord. 7(1971) § 2(K))