43 C.F.R. § 2650.5-2 Rule of approximation.
Title 43 - Public Lands: Interior
To assure full entitlement, the rule of approximation may be applied with respect to the acreage limitations applicable to conveyances and surveys under this authority, i.e., any excess must be less than the deficiency would be if the smallest legal subdivision were eliminated (see 62 I.D. 417, 421).
Title 43: Public Lands: Interior
PART 2650—ALASKA NATIVE SELECTIONS
Subpart 2650—Alaska Native Selections: Generally
§ 2650.5-2 Rule of approximation.