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Effective Dates for Sections of Title 10 of the Code of Federal Regulations in 2025

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Current Section

Effective Date

Federal Register Notice

Part 72

February 23, 2026

12/08/2025

Part 50

January 26, 2026

09/26/2025

Parts 2, 19, 20, 21, 25, 26, 30, 31, 32, 34, 35, 36, 37, 39, 40, 50, 51, 52, 54, 55, 60, 61, 62, 63, 70, 71, 72, 73, 74, 75, 76, 81, 95, 110, 140, 150, 160, 170, and 171

January 8, 2026

12/03/2025

Part 72

October 14, 2025
[Confirmation of the effective date of October 14, 2025, for the direct final rule that was published July 29, 2025 (90 FR 35589​)]

09/08/2025

Part 52

September 15, 2025
[Confirmation of the effective date of September 15, 2025, for the direct final rule that was published July 2, 2025 (90 FR 28869​)]

08/26/2025

Part 72

October 14, 2025

07/29/2025

Parts 170 and 171

August 25, 2025
[Correction for the final rule published on June 24, 2025 (90 FR 26730)]

07/28/2025

Part 52

September 15, 2025

07/02/2025

Parts 170 and 171

August 25, 2025

06/24/2025

Part 72

June 3, 2025
[Confirmation of the effective date of June 3, 2025, for the direct final rule that was published March 20, 2025 (90 FR 13047)]

05/02/2025

Part 72

May 27, 2025
[Confirmation of the effective date of May 27, 2025, for the direct final rule that was published March 13, 2025 (90 FR 11891)]

04/30/2025

Part 72

May 13, 2025
[Confirmation of the effective date of May 13, 2025, for the direct final rule that was published February 27, 2025 (90 FR 10781)]

04/14/2025

Part 72

June 3, 2025
[Correction for the final rule published on March 20, 2025 (90 FR 13047)]

03/31/2025

Part 72

June 3, 2025

03/20/2025

Part 72

April 21, 2025
[Confirmation of the effective date of April 21, 2025, for the direct final rule that was published February 4, 2025 (90 FR 8861)]

03/19/2025

Part 72

May 27, 2025

03/13/2025

Part 72

May 13, 2025

02/27/2025

Part 72

March 19, 2025
[Confirmation of the effective date of March 19, 2025, for the direct final rule that was published January 3, 2025 (90 FR 204)]

02/18/2025

Part 72

April 21, 2025

02/04/2025

Parts 2 and 13

January 15, 2025

01/15/2025

Part 72

March 19, 2025

01/03/2025

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Page Last Reviewed/Updated Monday, December 08, 2025

Page Last Reviewed/Updated Monday, December 08, 2025