| The National Motor Freight Classification (NMFC)® |
The NMFC Data update lifecycle occurs two times a year, beginning with a Proposal and culminating in the publication of a Supplement. To help you anticipate upcoming NMFC Data updates, see the table of key dates listed below.
To learn more about the NMFC Data update lifecycle:
- NMFC Data Update Lifecycle
- How the NMFC Data Updates Impact ClassIT+
- How to be alerted when the NMFC Data is Updated
| Date | Milestone |
| January 24, 2026 | 2026 NMFC Book Effective Date |
| February 6, 2026 | Docket 2026-1 Issue Date |
| March 20, 2026 | Disposition Bulletin for 2026-1 Issue Date |
| April 24, 2026 | Supplement 2026-1 Issue Date |
| May 23, 2026 | Supplement 2026-1 Effective Date |