2025 ACO/IMSA Rules & Regulations | IMSA

Skip to content

Skip to content

competitors
HOME
EVENT INFORMATION
TEST EVENT INFORMATION
RULES & REGULATIONS
Marketing & Branding
FORM & APPLICATIONS
IMSA
Proud Suppliers

2025 ACO/IMSA RULES & REGULATIONS

LMDh TECHNICAL REGULATIONS

Technical Regulations LMDh 4/2/25

Technical Regulations LMDh REDLINE 4/2/25

LMDh appendiCes

LMDh Appendices 4/2/25

LMDh Appendices REDLINE 4/2/25

technical bulletins

Technical Bulletin LMDh #25-01: 3/7/25 LMDh Technical Regulation Appendices Updates

Technical Bulletin LMDh #25-02: 4/2/25 LMDh Technical Regulation and Appendices Updates

2024 ACO IMSA Rules & Regulations

MORE NEWS

What to Watch For: Chevrolet Grand Prix at CTMP
Super Subs and Rivals Ready for Revised CTMP Field
After Le Mans, AWA Corvette Flies the Flag At Home
Robert Wickens’ Advantageous Helping Hand
Whelen Mazda MX-5 Cup Brings the Championship Heat to Canada

OFFICIAL PARTNERS

visit WeatherTech website - opens in the same window

visit Michelin website - opens in the same window

visit Alkamel website - opens in the same window

visit AMD website - opens in the same window

visit ACO website - opens in the same window

visit BDO website - opens in the same window

visit Bosch website - opens in the same window

visit Brembo website - opens in the same window

visit Crowdstrike website - opens in the same window

visit Evolve website - opens in the same window

visit Gainbridge website - opens in the same window

visit GMR website - opens in the same window

visit Hagerty website - opens in the same window

visit Konica Minolta website - opens in the same window

visit Motul website - opens in the same window

visit National Carts website - opens in the same window

visit NetJets website - opens in the same window

visit OMP website - opens in the same window

visit Racer website - opens in the same window

visit Recaro website - opens in the same window

visit Rolex website - opens in the same window

visit SCCA website - opens in the same window

visit Seven website - opens in the same window

visit Skip Barber website - opens in the same window

visit TSM Model website - opens in the same window

visit VP website - opens in the same window

visit ACURA website - opens in the same window

visit Aston Martin website - opens in the same window

visit Audi website - opens in the same window

visit BMW website - opens in the same window

visit Cadillac website - opens in the same window

visit Chevrolet website - opens in the same window

visit Cupra website - opens in the same window

visit Ferrari website - opens in the same window

visit Ford website - opens in the same window

visit Honda Racing website - opens in the same window

visit Hyundai website - opens in the same window

visit Lamborghini website - opens in the same window

visit Lexus website - opens in the same window

visit Mazda website - opens in the same window

visit McLaren website - opens in the same window

visit Mercedes website - opens in the same window

visit Porsche website - opens in the same window

visit Toyota website - opens in the same window

visit Austin Hatcher Foundation website - opens in the same window

visit Camp Boggy Creek website - opens in the same window

STAY IN TOUCH - SIGN UP FOR OUR NEWSLETTER

Sign up for the latest news and happenings.

You have been successfully added to our mailing list.

First Name Last Name Email Address Street Address City State Zip

*Required

For Competitors
Media
Careers
Privacy Statement
Contact Us
IMSA.COM TERMS OF USE
Accessibility
NASCAR.com
HSRRace.com
Do Not Sell / Share My Information
Manage Cookies

COPYRIGHT 2025 INTERNATIONAL MOTOR SPORTS ASSOCIATION, LLC.

IMSA.COM IS PART OF THE NASCAR DIGITAL MEDIA NETWORK