Every permit shall expire at the end of the period of time set out in the permit. If the permittee is unable to complete the work within the specified time, he shall, prior to the expiration of the permit, present in writing to the Director a request for an extension of time, setting forth therein the reasons for the requested extension. If, in the opinion of the Director, 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. (Ord. 87-7. Passed 4-20-87.)