Commodity | Initial Term | Period of Renewal or Readjustment |
(a) Phosphate | Indeterminate | Subject to readjustment at the end of each 20 year period. |
(b) Sodium | 20 years | Can be renewed for 10 years at the end of the initial term and for following 10 year periods. |
(c) Potassium | Indeterminate | Subject to readjustment at the end of each 20 year period. |
(d) Sulphur | 20 years | Can be renewed for 10 years at the end of the initial term and for following 10 year periods. |
(e) Gilsonite | 20 years and for as long thereafter as gilsonite is produced in paying quantities | Subject to readjustment at the end of each 20 year period. |
(f) Hardrock Minerals | not to exceed 20 years | Can be renewed for 10 years at the end of the initial term and for following 10 year periods. |
(g) Asphalt | 20 years | Can be renewed for 10 years at the end of the initial term and for following 10 year periods. |
43 C.F.R. §3511.15