Subject: 2025 rules updates.
From: Rob Elson, Technical Director
Date: May 8, 2025
Effective Date 5/9/2025
Rules updates: TB-2025-02 (PDF)
Tires- Group 8
Group 8 Tire Regulations have been amended. Hoosier R7 Tires will now be permitted in Group 8, for all
classes except B Sedan and B Sedan Light.