This jurisdictional exception to USPAP Standards Rule 1-2(c) is required for appraisals for federal acquisitions—i.e., appraisals applying the federal definition of market value—to ensure the opinion of value can be used as a reliable measure of just compensation under the Fifth Amendment to the U.S. Constitution. See USPAP Advisory Opinion 35, Reasonable Exposure Time in Real Property and Personal Property Opinions of Value; USPAP Frequently Asked Question 108. Appraisers may be accustomed to linking opinions of value to specific exposure times in other types of assignments. Cf. Robinson v. United States, 305 F.3d 1330, 1332 (Fed. Cir. 2002) (distinguishing “quick sale value” as