Renewable. Permits a specific use to continue until a specific date, unless renewed or extended by the Planning Board for an additional period of time. If not extended, the use shall be permanently discontinued. It is the responsibility of the applicant and not the Town of Greenfield, or any board, officer or employee thereof, to initiate the request for the renewal or extension prior to the expiration of the original term of such renewable special use permit. If not extended or renewed prior to the date set for expiration, the right to continue such special use shall terminate on such expiration date, subject to the right of the applicant to seek an extension or renewal. Applications for permit extensions or renewals shall follow the same process as for new permits.