20 C.F.R. § 416.1489 Good cause for reopening.
Title 20 - Employees' Benefits
(a) We will find that there is good cause to reopen a determination or decision if— (1) New and material evidence is furnished; (2) A clerical error was made; or (3) The evidence that was considered in making the determination or decision clearly shows on its face that an error was made. (b) We will not find good cause to reopen your case if the only reason for reopening is a change of legal interpretation or administrative ruling upon which the determination or decision was made.
Title 20: Employees' Benefits
PART 416—SUPPLEMENTAL SECURITY INCOME FOR THE AGED, BLIND, AND DISABLED
Subpart N—Determinations, Administrative Review Process, and Reopening of Determinations and Decisions
Reopening and Revising Determinations and Decisions
§ 416.1489 Good cause for reopening.