Section 144.36 - Duration of permits(a) Permits for Class I and V wells shall be effective for a fixed term not to exceed 10 years. UIC permits for Class II and III wells shall be issued for a period up to the operating life of the facility. UIC permits for Class VI wells shall be issued for the operating life of the facility and the post-injection site care period. The Director shall review each issued Class II, III, and VI well UIC permit at least once every 5 years to determine whether it should be modified, revoked and reissued, terminated or a minor modification made as provided in § 144.39 , § 144.40 , or § 144.41 .(b) Except as provided in § 144.37 , the term of a permit shall not be extended by modification beyond the maximum duration specified in this section.(c) The Director may issue any permit for a duration that is less than the full allowable term under this section.48 FR 14189, Apr. 1, 1983, as amended at 75 FR 77288, Dec. 10, 2010