---
kind: "unit"
title: "37"
title_heading: "Patents, Trademarks, and Copyrights"
key: "chII/subchB/part221"
level: "part"
label: "Part 221"
heading: "Registration"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/37/chII-subchB-part221"
sections_count: 2
---

# Part 221 — Registration

Title 37 C.F.R. — Patents, Trademarks, and Copyrights › Chapter II — U.s. Copyright Office, Library of Congress › Subchapter B — Copyright Claims Board and Procedures

## Sections

- [§221.1. Registration requirement.](/cfr/37/221.1.md)
- [§221.2. Small claims expedited registration.](/cfr/37/221.2.md)