---
kind: "section"
citation: "21 C.F.R. § 1.666"
title: "21"
number: "1.666"
heading: "How do I request reaccreditation?"
url: "https://uscodex.org/cfr/21/1.666"
---

# §1.666. How do I request reaccreditation?

- (a) **Application following withdrawal.** FDA will reinstate the accreditation of a third-party certification body for which it has withdrawn accreditation:
  - (1) If, in the case of direct accreditation, FDA determines, based on evidence presented by the third-party certification body, that the third-party certification body satisfies the applicable requirements of this subpart and adequate grounds for withdrawal no longer exist; or
  - (2) In the case of a third-party certification body accredited by an accreditation body for which recognition has been revoked under [§ 1.634](/cfr/21/1.634.md):
    - (i) If the third-party certification body becomes accredited by another recognized accreditation body or by FDA through direct accreditation no later than 1 year after withdrawal of accreditation, or the original date of the expiration of accreditation, whichever comes first; or
    - (ii) Under such conditions as FDA may impose in withdrawing accreditation.
- (b) **Application following voluntary relinquishment.** A third-party certification body that previously relinquished its accreditation under [§ 1.665](/cfr/21/1.665.md) may seek accreditation by submitting a new application for accreditation under [§ 1.660](/cfr/21/1.660.md) or, where applicable, [§ 1.670](/cfr/21/1.670.md).

## Notes

### Source

Source: 80 FR 74650, Nov. 27, 2015, unless otherwise noted.

### Authority

Authority: 15 U.S.C. 1333, 1453, 1454, 1455, 4402; 19 U.S.C. 1490, 1491; 21 U.S.C. 321, 331, 332, 333, 334, 335a, 342, 343, 350c, 350d, 350j, 352, 355, 360b, 360ccc, 360ccc-1, 360ccc-2, 362, 371, 374, 381, 382, 384a, 387, 387a, 387c, 393, and 2223; 42 U.S.C. 216, 241, 243, 262, 264, 271.

### Source

Source: 42 FR 15553, Mar. 22, 1977, unless otherwise noted.