2025 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 IMSA RULES & REGULATIONS

IMSA WEATHERTECH CHAMPIONSHIP

2025 IMSA Sporting Regulations (and SSR) for the IWSC 4/2/25

2025 IMSA Sporting Regulations (and SSR) for the IWSC REDLINE 4/2/25

2025 IWSC Technical Regulations LMP2 1/10/25

2025 IWSC Technical Regulations LMP2 REDLINE 1/10/25

2025 IWSC Technical Regulations GTD 3/5/25

2025 IWSC Technical Regulations GTD REDLINE 3/5/25

IMSA SCRUTINEERING SYSTEM FILES

IMSA GTP Spec Scrutineering Manual v1.5.3

IMSA GTD Spec Scrutineering Manual v1.5.4

IMSA GTDX Spec Scrutineering Manual v1.1.3

Public CAN Declaration Form

IMSA GTP CAN BUS 1 Specification rev12

IMSA GTP CAN BUS 2 Specification rev16

IMSA GTD & GTD PRO CAN 2 Public Team ECU rev5

IMSA GTD & GTD PRO CAN 1 Public Team ECU rev1

IMSA MICHELIN PILOT CHALLENGE

2025 IMSA Sporting Regulations (and SSR) for the IMPC 2/27/25

2025 IMSA Sporting Regulations (and SSR) for the IMPC REDLINE 2/27/25

2025 IMPC Technical Regulations GS 11/22/24

2025 IMPC Technical Regulations GS REDLINE 11/22/24

2025 IMPC Technical Regulations TCR 11/22/24

2025 IMPC Technical Regulations TCR REDLINE 11/22/24

IMSA VP RACING SPORTSCAR CHALLENGE

2025 IMSA Sporting Regulations (and SSR) for the VPRC 2/19/25

2025 IMSA Sporting Regulations (and SSR) for the VPRC REDLINE 2/19/25

2025 VPRC Technical Regulations P3 11/22/24

2025 VPRC Technical Regulations P3 REDLINE 11/22/24

2025 VPRC Technical Regulations GSX 11/22/24

2025 VPRC Technical Regulations GSX REDLINE 11/22/24

2025 VPRC Technical Regulations GTDX 11/22/24

2025 VPRC Technical Regulations GTDX REDLINE 11/22/24

IMSA VPRC SCRUTINEERING SYSTEM FILES

IMSA GTDX Spec Scrutineering Manual v1.1.1

IMSA GTDX CAN 2 Public Team ECU rev1

MAZDA MX-5 CUP

2025 IMSA Sporting Regulations (and SSR) for the MX5 CUP 1/15/25

2025 IMSA Sporting Regulations (and SSR) for the MX5 CUP REDLINE 1/15/25

2025 MX5 CUP Technical Regulations 1/15/25

2025 MX5 CUP Technical Regulations REDLINE 1/15/25

LAMBORGHINI SUPER TROFEO

2025 LST Sporting Regulations 03/08/25

2025 LST Technical Regulations 3/11/25

PORSCHE CARRERA CUP

2025 IMSA Sporting Regulations (and SSR) for the PCCNA 2/13/25

2025 IMSA Sporting Regulations (and SSR) for the PCCNA REDLINE 2/13/25

2025 PCCNA Technical Regulations 2/27/25

2025 PCCNA Technical Regulations Redline 2/27/25

FERRARI CHALLENGE

2025 Ferrari Challenge Sporting and Technical Regulations 3.11.25

MUSTANG CHALLENGE

2025 IMSA Sporting Regulations (and SSR) for the Mustang Challenge 2/27/25

2025 IMSA Sporting Regulations (and SSR) for the Mustang Challenge REDLINE 2/27/25

2025 MC Technical Regulations 3/6/25

2025 MC Technical Regulations REDLINE 3/6/25

2024 rules & regulations

MORE NEWS

Dickinson, Sargent, Hartog Named to Porsche Motorsport North America Selected Driver Program
Quartet of VP Racing Challenge Drivers Entered in Road to Le Mans
New GTP Breed of Stars Emerging
Blockbuster 47th Historic Sportscar Racing (HSR) The Mitty presented by Hagerty Roars into Michelin Raceway Road Atlanta Next Week, April 24 – 27
Triple Play: Examining IMSA’s Recent Three-Race Win Streaks

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