---
kind: "section"
citation: "21 C.F.R. § 1.233"
title: "21"
number: "1.233"
heading: "Are there optional items included in the registration form?"
url: "https://uscodex.org/cfr/21/1.233"
---

# §1.233. Are there optional items included in the registration form?


Yes. FDA encourages, but does not require, you to submit items that are indicated as optional on the Form FDA 3537 that you submit.


## Notes

### Amendments

[81 FR 45952, July 14, 2016]

### Source

Source: 68 FR 58960, Oct. 10, 2003, 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.

### Amendments

[81 FR 45952, July 14, 2016]