---
kind: "unit"
title: "12"
title_heading: "Banks and Banking"
key: "chII/subchA/part253"
level: "part"
label: "Part 253"
heading: "Regulations Implementing the Adjustable Interest Rate (libor) Act (regulation Zz)"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/12/chII-subchA-part253"
sections_count: 7
---

# Part 253 — Regulations Implementing the Adjustable Interest Rate (libor) Act (regulation Zz)

Title 12 C.F.R. — Banks and Banking › Chapter II — Federal Reserve System › Subchapter A — Board of Governors of the Federal Reserve System

## Sections

- [§253.1. Authority, purpose, and scope.](/cfr/12/253.1.md)
- [§253.2. Definitions.](/cfr/12/253.2.md)
- [§253.3. Applicability.](/cfr/12/253.3.md)
- [§253.4. Board-selected benchmark replacements.](/cfr/12/253.4.md)
- [§253.5. Benchmark replacement conforming changes.](/cfr/12/253.5.md)
- [§253.6. Preemption.](/cfr/12/253.6.md)
- [§253.7. Continuity of contract and safe harbor.](/cfr/12/253.7.md)