2026 IMSA RULES & REGULATIONS

IMSA WEATHERTECH CHAMPIONSHIP

2026 IMSA Sporting Regulations (and SSR) for the IWSC 6/17/26

2026 IMSA Sporting Regulations (and SSR) for the IWSC REDLINE 6/17/26

2026 IWSC Technical Regulations LMP2 6/16/26

2026 IWSC Technical Regulations LMP2 REDLINE 6/16/26

2026 IWSC Technical Regulations GTD 6/16/26

2026 IWSC Technical Regulations GTD REDLINE 6/16/26

 

IMSA SCRUTINEERING SYSTEM FILES

IMSA GTP Spec Scrutineering Manual v1.6.3

IMSA GTD Spec Scrutineering Manual v1.6.3

Public CAN Declaration Form 

IMSA GTP CAN BUS 1 Specification Rev 13

IMSA GTP CAN BUS 2 Specification 20

IMSA GTD & GTD PRO CAN 2 Public Team ECU Rev 9

IMSA GTD & GTD PRO CAN 1 Public Team ECU rev1

IMSA MICHELIN PILOT CHALLENGE

2026 IMSA Sporting Regulations (and SSR) for the IMPC 6/17/26

2026 IMSA Sporting Regulations (and SSR) for the IMPC REDLINE 6/17/26

2026 IMPC Technical Regulations GS 6/16/26 

2026 IMPC Technical Regulations GS REDLINE 6/16/26

2026 IMPC Technical Regulations TCR 6/16/26

2026 IMPC Technical Regulations TCR REDLINE 6/16/26

IMSA VP RACING SPORTSCAR CHALLENGE

2026 IMSA Sporting Regulations (and SSR) for the VPRC 6/17/26

2026 IMSA Sporting Regulations (and SSR) for the VPRC REDLINE 6/17/26

2026 VPRC Technical Regulations P3 2/13/26 

2026 VPRC Technical Regulations P3 REDLINE 2/13/26

2026 VPRC Technical Regulations GSX 6/16/26

2026 VPRC Technical Regulations GSX REDLINE 6/16/26

2026 VPRC Technical Regulations GTDX 12/17/25

2026 VPRC Technical Regulations GTDX REDLINE 12/17/25

2026 VPRC Technical Regulations M2 5/14/2026

IMSA VPRC SCRUTINEERING SYSTEM FILES

IMSA GTDX Spec Scrutineering Manual v1.1.5

IMSA GTDX CAN 2 Public Team ECU rev1

 

MAZDA MX-5 CUP

LAMBORGHINI SUPER TROFEO

2026 LST Sporting Regulations 6/17/26

2026 LST Sporting Regulations REDLINE 6/17/26

2026 LST Technical Regulations 03/17/26

2026 LST Technical Regulations REDLINE 03/17/26

PORSCHE CARRERA CUP

2026 IMSA Sporting Regulations (and SSR) for the PCCNA 6/17/26

2026 IMSA Sporting Regulations (and SSR) for the PCCNA REDLINE 6/17/26

2026 PCCNA Technical Regulations 2/6/26

2026 PCCNA Technical Regulations Redline 2/6/26

FERRARI CHALLENGE

2026 Ferrari Challenge Sporting and Technical Regulations

MUSTANG CHALLENGE

2026 IMSA Sporting Regulations (and SSR) for the Mustang Challenge 6/17/26

2026 IMSA Sporting Regulations (and SSR) for the Mustang Challenge REDLINE 6/17/26

2026 MC Technical Regulations 3/16/26

2026 MC Technical Regulations REDLINE 3/16/26

 

2025 rules & regulations

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