Duration. A general license issued by the Department expires after 3 years, unless extended under Regulation .15 of this chapter. An individual license expires after 3 years unless: The Board authorizes a longer initial period for an individual license; or The license is extended under Regulation .15 of this chapter. Licenses authorizing periodic maintenance dredging are valid for a maximum period of 6 years. An emergency license has a period not to exceed the amount of time necessary to abate or mitigate the emergency. Expiration. When the license expires, the licensee: Shall stop any incomplete activities authorized under the license; and Except for dredging or maintenance dredging, may continue use or structural occupation on State lands and waters, if all conditions of the license are met.