---
kind: "section"
citation: "42 C.F.R. § 423.641"
title: "42"
number: "423.641"
heading: "Contract determinations."
url: "https://uscodex.org/cfr/42/423.641"
---

# §423.641. Contract determinations.


This subpart establishes the procedures for reviewing the following contract determinations:

- (a) A determination that an entity is not qualified to enter into a contract with CMS under Part D of title XVIII of the Act.
- (b) A determination not to authorize a renewal of a contract with a PDP sponsor in accordance with [§ 423.507(b)](/cfr/42/423.507.md?p=b).
- (c) A determination to terminate a contract with a PDP sponsor in accordance with [§ 423.509](/cfr/42/423.509.md).
- (d) Fallback entities are governed under subpart Q of this part, and are not subject to this subpart, except to the extent a fallback prescription drug plan contract is terminated by CMS.

## Notes

### Authority

Authority: 42 U.S.C. 1302, 1306, 1395w-101 through 1395w-152, and 1395hh.

### Source

Source: 70 FR 4525, Jan. 28, 2005, unless otherwise noted.