The NHRA Technical Department has released additional 2026 Rulebook Amendments. Unless otherwise noted in the amendment document, these changes are effective immediately. The 2026 NHRA Rulebook Amendments can be found on NHRARacer.com under Tech, then Rules.

These amendments include the following change. Please refer to the latest 2026 Rulebook Amendments document for complete details.

• Section 6, Pro Mod – Parity update; rear-end gear ratios revised.