16 CFR § 309.12 - Recordkeeping.

---
identifier: "/us/cfr/t16/s309.12"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "16 CFR § 309.12 - Recordkeeping."
title_number: 16
title_name: "Commercial Practices"
section_number: "309.12"
section_name: "Recordkeeping."
chapter_name: "FEDERAL TRADE COMMISSION"
subchapter_number: "C"
subchapter_name: "REGULATIONS UNDER SPECIFIC ACTS OF CONGRESS"
part_number: "309"
part_name: "LABELING REQUIREMENTS FOR ALTERNATIVE FUELS AND ALTERNATIVE FUELED VEHICLES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 13232(a)."
regulatory_source: "60 FR 26955, May 19, 1995, unless otherwise noted."
cfr_part: "309"
---


# 309.12 Recordkeeping.

You must keep for one year records of how you determined fuel ratings. The records must be available for inspection by Federal Trade Commission staff members, or by people authorized by FTC.