CFR›Title 43›Subtitle B›Chapter II›Part 3120›Subject Group Lease Terms›43 CFR 3120.21 Citation43 CFR 3120.21CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 § 3120.21 Duration of lease.Competitive leases will be issued for a primary term of 10 years. Next 3120.22 § 3120.22 Dating of leases.