Regulations last checked for updates: Nov 22, 2024

Title 43 - Public Lands: Interior last revised: Sep 06, 2024
§ 3511.15 - How long will my lease be in effect?
Commodity Initial Term Period of Renewal or
Readjustment
(a) PhosphateIndeterminateSubject to readjustment at the end of each 20 year period.
(b) Sodium20 yearsCan be renewed for 10 years at the end of the initial term and for following 10 year periods.
(c) PotassiumIndeterminateSubject to readjustment at the end of each 20 year period.
(d) Sulphur20 yearsCan be renewed for 10 years at the end of the initial term and for following 10 year periods.
(e) Gilsonite20 years and for as long thereafter as gilsonite is produced in paying quantitiesSubject to readjustment at the end of each 20 year period.
(f) Hardrock Mineralsnot to exceed 20 yearsCan be renewed for 10 years at the end of the initial term and for following 10 year periods.
(g) Asphalt20 yearsCan be renewed for 10 years at the end of the initial term and for following 10 year periods.
source: 64 FR 53536, Oct. 1, 1999, unless otherwise noted.
cite as: 43 CFR 3511.15