- (a) Sodium, sulphur, asphalt, and hardrock mineral leases expire at the end of the lease term. If you file a timely application for lease renewal under § 3511.27 of this part, your lease expires on the expiration date or the date BLM rejected your application, whichever is later.
- (b) Potassium, phosphate and gilsonite leases continue for so long as you comply with the lease terms and conditions which are subject to periodic readjustment.
- (c) For more information, see § 3511.15 of this part.