21 CFR § 1000.1 - General.

---
identifier: "/us/cfr/t21/s1000.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 1000.1 - General."
title_number: 21
title_name: "Food and Drugs"
section_number: "1000.1"
section_name: "General."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "J"
subchapter_name: "RADIOLOGICAL HEALTH"
part_number: "1000"
part_name: "GENERAL"
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. 360hh-360ss."
regulatory_source: "38 FR 28624, Oct. 15, 1973, unless otherwise noted."
cfr_part: "1000"
---


# 1000.1 General.

References in this subchapter J to regulatory sections of the Code of Federal Regulations are to chapter I of title 21 unless otherwise noted.

[50 FR 33688, Aug. 20, 1985]