2026-09143: 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production; Correction Amendment
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On February 2, 2026, FAA published a final rule titled "25- Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production." That final rule contained typographical, grammatical, and formatting errors in three sections of Title 14 of the Code of Federal Regulations. This document corrects those errors in the final regulations.
The agency’s own summary, as published.
The rule, in full
1,271 words as published, May 08, 2026. View the original →
Federal Register, Volume 91 Issue 89 (Friday, May 8, 2026) [Federal Register Volume 91, Number 89 (Friday, May 8, 2026)] [Rules and Regulations] [Pages 25108-25109] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2026-09143] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Parts 91, 125, and 135 [Docket No.: FAA-2023-2270; Amdt. Nos. 91-382A, 125-77A, and 135-149A] RIN 2120-AL92 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production; Correction Amendment
Agency
Federal Aviation Administration (FAA), Department of Transportation (DOT).
Action
Correcting amendments. -----------------------------------------------------------------------
Summary
On February 2, 2026, FAA published a final rule titled ``25- Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production.'' That final rule contained typographical, grammatical, and formatting errors in three sections of Title 14 of the Code of Federal Regulations. This document corrects those errors in the final regulations.
Dates
Effective May 8, 2026.
For Further Information Contact
Charisse Green, Aircraft Maintenance Division, AFS-340, Federal Aviation Administration, 800 Independence Ave. SW, Washington, DC 20591; telephone (202) 267-1675; email [email protected].
Supplementary Information
On February 2, 2026, the ``25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production'' final rule (RIN 2120-AL92) was published in the Federal Register at 91 FR 4447. That final rule amended the recording time of cockpit voice recorders (CVRs) from the previously mandated 2 hours to 25 hours for all affected future manufactured aircraft. After publication, FAA discovered Sec. Sec. 91.609, 125.227 and 135.151 contained the following typographical, grammatical, and formatting errors. Corrections to 14 CFR 91.609 In Sec. 91.609(i)(2)(i)(B), the text should read ``type- certificated with'' instead of ``type-certificated for.'' In Sec. 91.609(i)(2)(i)(C), the text should read ``59,524 pounds or less.'' rather than ``59,524 pounds or less; or.'' Correction to 14 CFR 125.227 In Sec. 125.227(h)(2)(i)(B), the text should read ``more and type-certificated with'' instead of ``more type-certificated for.'' Corrections to 14 CFR 135.151 In Sec. 135.151(g)(1)(iii)(A), paragraphs (a), (b), and (c) were incorrectly designated and should have been designated as Sec. 135.151(g)(1)(iii)(A)(1), (2), and (3). In Sec. 135.151(g)(1)(iii)(A)(b), herein corrected as (2), the text should read ``more and type-certificated with'' instead of ``more or type-certificated for.'' In Sec. 135.151(g)(1)(iii)(A)(c), herein corrected as (3), the text should read ``59,524 pounds or less.'' instead of ``59,524 pounds or less; or.'' Due to the incorrect designations in Sec. 135.151(g)(1)(iii)(A), Sec. 135.151(g)(1)(iii)(B) cross-referenced the incorrectly designated subsections. As such, in Sec. 135.151(g)(1)(iii)(B) the text should read ``requirements found in (g)(1)(iii)(A)(1), (g)(1)(iii)(A)(2), and (g)(1)(iii)(A)(3).'' In Sec. 135.151(g)(2)(iii)(A), paragraphs (a), (b), and (c) were incorrectly designated and should have been designated as Sec. 135.151(g)(2)(iii)(A)(1), (2), and (3). In Sec. 135.151(g)(2)(iii)(A)(b), herein corrected as (2), the text should read ``or more and type-certificated with'' instead of ``or more with.'' Due to the incorrect designations in Sec. 135.151(g)(2)(iii)(A), Sec. 135.151(g)(2)(iii)(B) cross-referenced the incorrectly designated subsections. As such, in Sec. 135.151(g)(2)(iii)(B) the [[Page 25109]] text should read ``requirements found in (g)(2)(iii)(A)(1), (g)(2)(iii)(A)(2), and (g)(2)(iii)(A)(3).'' This document corrects these various issues contained in the regulatory text. List of Subjects 14 CFR Part 91 Aircraft, Aviation safety. 14 CFR Part 125 Aircraft, Aviation safety. 14 CFR Part 135 Air taxis, Aircraft, Aviation safety. Accordingly, 14 CFR part 91, Part 125, and Part 135 are corrected by making the following correcting amendments: PART 91--GENERAL OPERATING AND FLIGHT RULES 0
1. The authority citation for part 91 continues to read as follows:
Authority: 49 U.S.C. 106(f), 40101, 40103, 40105, 40113, 40120, 44101, 44111, 44701, 44704, 44709, 44711, 44712, 44715, 44716, 44717, 44722, 46306, 46315, 46316, 46504, 46506-46507, 47122, 47508, 47528-47531, 47534, Pub. L. 114-190, 130 Stat. 615 (49 U.S.C. 44703 note); Pub. L. 118-383; articles 12 and 29 of the Convention on International Civil Aviation (61 Stat. 1180), (126 Stat. 11). 0
2. Amend Sec. 91.609 by revising paragraphs (i)(2)(i)(B) and
(i)(2)(i)(C) to read as follows: Sec. 91.609 Flight data recorders and cockpit voice recorders. * * * * * (i) * * * (2) * * * (i) * * * (A) * * * (B) Manufactured on or after February 2, 2027, for airplanes or rotorcraft with a maximum certified takeoff weight (MCTOW) of 59,525 pounds or more and type-certificated with 29 or fewer passenger seats; or (C) Manufactured on or after February 2, 2029, for airplanes or rotorcraft with a maximum certified takeoff weight (MCTOW) of 59,524 pounds or less. * * * * * PART 125--CERTIFICATION AND OPERATIONS: AIRCRAFT HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT 0
3. The authority citation for part 125 continues to read as follows:
Authority: 49 U.S.C. 106(f), 40113, 44701-44702, 44705, 44710- 44711, 44713, 44716-44717, 44722; Pub. L. 118-383. 0
4. Amend Sec. 125.227 by revising paragraph (h)(2)(i)(B) to read as
follows: Sec. 125.227 Cockpit voice recorders. * * * * * (h) * * * (2) * * * (i) * * * (B) If manufactured on or after February 2, 2027, for airplanes with a maximum certified takeoff weight (MCTOW) of 59,525 pounds or more and type-certificated with 29 or fewer passenger seats; * * * * * PART 135--OPERATING REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT 0
5. The authority citation for part 135 continues to read as follows:
Authority: 49 U.S.C. 106(f), 40113, 41706, 44701-44702, 44705, 44709, 44711-44713, 44715-44717, 44722, 44730, 45101-45105; Pub. L. 112-95, 126 Stat. 58 (49 U.S.C. 44730), Pub. L. 118-383. 0
6. Amend Sec. 135.151 by revising paragraphs (g)(1)(iii) and
(g)(2)(iii) to read as follows: Sec. 135.151 Cockpit voice recorders. * * * * * (g) * * * (1) * * * (iii) Retains at least-- (A) The last 25 hours of recorded information using a recorder that meets the standards of TSO-C123c, or later revision, if: (1) Manufactured on or after May 16, 2025, for a transport category aircraft type-certificated with 30 or more passenger seats; or (2) Manufactured on or after February 2, 2027, for airplanes or rotorcraft with a maximum certified takeoff weight (MCTOW) of 59,525 pounds or more and type-certificated with 29 or fewer passenger seats; or (3) Manufactured on or after February 2, 2029, for airplanes or rotorcraft with a maximum certified takeoff weight (MCTOW) of 59,524 pounds or less. (B) The last 2 hours of recorded information using a recorder that meets the standards of TSO-C123a, or later revision, unless the airplane or rotorcraft meets the manufacturing date and requirements found in paragraphs (g)(1)(iii)(A)(1), (g)(1)(iii)(A)(2), or (g)(1)(iii)(A)(3) of this section. * * * * * (2) * * * (iii) Retains at least-- (A) The last 25 hours of recorded information using a recorder that meets the standards of TSO-C123c, or later revision, if: (1) Manufactured on or after May 16, 2025, for airplanes or rotorcraft type-certificated with 30 or more passenger seats; or (2) Manufactured on or after February 2, 2027, for airplanes or rotorcraft with a maximum certified takeoff weight (MCTOW) of 59,525 pounds or more and type-certificated with 29 or fewer passenger seats; or (3) Manufactured on or after February 2, 2029, for airplanes or rotorcraft with a maximum certified takeoff weight (MCTOW) of 59,524 pounds or less. (B) The last 2 hours of recorded information using a recorder that meets the standards of TSO-C123a, or later revision, unless the airplane or rotorcraft meets the manufacturing date and requirements found in paragraphs (g)(2)(iii)(A)(1), (g)(2)(iii)(A)(2), or (g)(2)(iii)(A)(3) of this section. * * * * * Issued under authority provided by 49 U.S.C. 106(f), 44701(a), and 44703 in Washington, DC. Brandon Roberts, Executive Director, Office of Rulemaking. [FR Doc. 2026-09143 Filed 5-7-26; 8:45 am] BILLING CODE 4910-13-P
What this changes
Amends 3 parts of the Code of Federal Regulations — the standing rules this notice rewrites.
- 14 CFR 91 General Operating and Flight Rules
- 14 CFR 125 Certification and Operations: Aircraft Having a Seating Capacity of 20 or More Passengers or a Maximum Payload Capacity of 6,000 Pounds or More; and Rules Governing Persons on Board Such Aircraft
- 14 CFR 135 Operating Requirements: Commuter and on Demand Operations and Rules Governing Persons on Board Such Aircraft
Rulemaking docket
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Supporting & Related Material December 04, 2023U.S. DOT/FAA - Supplemental Documents
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Proposed Rule December 04, 202325-Hour Cockpit Voice Recorder Requirement: New Aircraft Production
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Other January 02, 2024Honorable Steve Cohen, Honorable Tim Burchett (Correspondence)
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Rule February 02, 202625-Hour Cockpit Voice Recorder Requirement, New Aircraft Production
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Rule May 08, 202625-Hour Cockpit Voice Recorder Requirement, New Aircraft Production; Correcting Amendment
Public comments
What people are saying
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Anonymous Anonymous 2024-11-18
“By extending the recording time, investigators would have access to a much larger and more comprehensive data from the cockpit! Safety is the priority!”
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Vassilios Georges 2024-03-08
“I agree with the increase in the hourly capture of the Cockpit Voice Recorder(CVR). The ability to conduct accident investigations has significantly improved with the proposed extension to a 25-hour CVR timeframe. The limits of the current 2-hour CVR recording window are shown through an analysis of a recent occurrence involving flight CAL5148, which required a thorough investigation due to an error during landing. The event indicated that important data had been deleted, highlighting the need for a longer recording period to more fully assess incidents.The unexpected diversion and followin...”
1,448 more characters
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Anonymous Anonymous 2024-03-04
“Changing 2 hrs to 25hrs for a CVR is extremely important as it is imperative for safety to understand what was happening in the flight deck after an incident or accident.”
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Anonymous commenter 2024-02-07
“See Attached”
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Christian Haughwout 2024-02-05
“The commenter supports the increase in the required recording time but is concerned as to how CVR manufacturers may meet the requirement. It is far more expensive to design new hardware and bring it into production than it is to modify the firmware of existing hardware devices. This fact, combined with some lack of specificity in the regulations (as far as the commenter is aware), may lead manufacturers to seek to meet the new duration requirement at the cost of recording quality or retrievability. A digital recording is characterized by both sample rate and bit depth. Higher sample rates a...”
2,498 more characters
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Documents
- Full text (Federal Register) · May 08, 2026
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