40A-44.321. Duration of Permit

(1) Unless revoked or otherwise modified, the duration of a permit pursuant to this chapter is: (a) Five years, for a construction permit; (b) Perpetual, for an operation and maintenance permit, except any operation and maintenance permit on an existing facility shall automatically expire when a new operation and maintenance permit or abandonment permit is issued for that same facility. (2) Construction permits expire automatically unless the permittee requests an extension before the expiration date.