21 CFR § 203.35 - Standing requests.

---
identifier: "/us/cfr/t21/s203.35"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 203.35 - Standing requests."
title_number: 21
title_name: "Food and Drugs"
section_number: "203.35"
section_name: "Standing requests."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "C"
subchapter_name: "DRUGS: GENERAL"
part_number: "203"
part_name: "PRESCRIPTION DRUG MARKETING"
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. 331, 333, 351, 352, 353, 360, 371, 374, 381."
regulatory_source: "64 FR 67756, Dec. 3, 1999, unless otherwise noted."
cfr_part: "203"
---


# 203.35 Standing requests.

Manufacturers or authorized distributors of record shall not distribute drug samples on the basis of open-ended or standing requests, but shall require separate written requests for each drug sample or group of samples. An arrangement by which a licensed practitioner requests in writing that a specified number of drug samples be delivered over a period of not more than 6 months, with the actual delivery dates for parts of the order to be set by subsequent oral communication or electronic transmission, is not considered to be a standing request.