---
kind: "section"
citation: "20 C.F.R. § 418.3620"
title: "20"
number: "418.3620"
heading: "What is the effect of an initial determination?"
url: "https://uscodex.org/cfr/20/418.3620"
---

# §418.3620. What is the effect of an initial determination?


An initial determination is binding unless you request an appeal within the time period stated in [§ 418.3630(a)](/cfr/20/418.3630.md?p=a) or we revise it as provided in [§ 418.3678](/cfr/20/418.3678.md).


## Notes

### Authority

Authority: Secs. 702(a)(5) and 1860D-1, 1860D-14 and -15 of the Social Security Act (42 U.S.C. 902(a)(5),1395w-101, 1395w-114, and -115).

### Source

Source: 70 FR 77675, Dec. 30, 2005, unless otherwise noted.