20 C.F.R. § 404.913 : Employees' Benefits — SOCIAL SECURITY ADMINISTRATION — FEDERAL OLD-AGE, SURVIVORS AND DISABILITY INSURANCE (1950- ) — DETERMINATIONS, ADMINISTRATIVE REVIEW PROCESS, AND REOPENING OF DETERMINATIONS AND DECISIONS —RECONSIDERATION — Reconsideration procedures

(a) Case review. With the exception of the type of case described in paragraph (b) of this section, the reconsideration process consists of a case review. Under a case review procedure, we will give you and the other parties to the reconsideration an opportunity to present additional evidence to us. The official who reviews your case will then make a reconsidered determination based on all of this evidence.
(b) Disability hearing. If you have been receiving benefits based on disability and you request reconsideration of an initial or revised determination that, based on medical factors, you are not now disabled, we will give you and the other parties to the reconsideration an opportunity for a disability hearing. (See §§404.914 through 404.918.)

20 C.F.R. §404.913

51 FR 300, 1/3/1986