---
kind: "section"
citation: "21 C.F.R. § 1311.35"
title: "21"
number: "1311.35"
heading: "Number of CSOS digital certificates needed."
url: "https://uscodex.org/cfr/21/1311.35"
---

# §1311.35. Number of CSOS digital certificates needed.


A purchaser of Schedule I and II controlled substances must obtain a separate CSOS certificate for each registered location for which the purchaser will order these controlled substances.


## Notes

### Authority

Authority: 21 U.S.C. 821, 828, 829, 871(b), 958(e), 965, unless otherwise noted.

### Source

Source: 70 FR 16915, Apr. 1, 2005, unless otherwise noted.