21 CFR § 1311.15 - Limitations on CSOS digital certificates.

---
identifier: "/us/cfr/t21/s1311.15"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 1311.15 - Limitations on CSOS digital certificates."
title_number: 21
title_name: "Food and Drugs"
section_number: "1311.15"
section_name: "Limitations on CSOS digital certificates."
chapter_name: "DRUG ENFORCEMENT ADMINISTRATION, DEPARTMENT OF JUSTICE"
part_number: "1311"
part_name: "REQUIREMENTS FOR ELECTRONIC ORDERS AND PRESCRIPTIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 821, 828, 829, 871(b), 958(e), 965, unless otherwise noted."
regulatory_source: "70 FR 16915, Apr. 1, 2005, unless otherwise noted."
cfr_part: "1311"
---


# 1311.15 Limitations on CSOS digital certificates.

(a) A CSOS digital certificate issued by the DEA Certification Authority will authorize the certificate holder to sign orders for only those schedules of controlled substances covered by the registration under which the certificate is issued.

(b) When a registrant, in a power of attorney letter, limits a certificate applicant to a subset of the registrant's authorized schedules, the registrant is responsible for ensuring that the certificate holder signs orders only for that subset of schedules.