2023 COMPETITION BULLETINS
IMSA WeatherTech Sportscar championship
Comp Bulletin IWSC #23-02: 10/19/22 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-03: 11/02/22 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-04: 12/21/22 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-05: 01/06/23 ROAR and Rolex 24 Event Driver Helmet Inspections
Comp Bulletin IWSC #23-06: 01/11/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-07: 01/17/23 Additional Trailers Logistics Plan
Comp Bulletin IWSC #23-08: 01/18/23 GTP Hybrid Electrified Identification
Comp Bulletin IWSC #23-10: 01/25/23 GTP Rolex 24 At Daytona SLT Tire Usage Notes
Comp Bulletin IWSC #23-11: 01/28/23 Refueling And/Or Energy Replenishment
Comp Bulletin IWSC #23-12: 02/02/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-13: 03/02/23 Indianapolis IMSA Sanctioned Test Information
Comp Bulletin IWSC #23-14: 03/13/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-15: 03/15/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-16: 04/05/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-17: 05/03/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-18: 06/22/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-19: 06/24/23 Sahlen's 6 Hours of the Glen: Revised GTP Event Tire Allocation
Comp Bulletin IWSC #23-20: 06/28/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-21: 07/06/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-22: 09/06/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-23: 10/04/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-24: 10/11/23 IMSA WeatherTech Championship Sporting Regulations Updates
Comp Bulletin IWSC #23-25: 10/12/23 IMSA WeatherTech Championship Paddock Information
IMSA MICHELIN PILOT CHALLENGE
Comp Bulletin IMPC #23-01: 10/14/22 2023 IMSA Michelin Challenge Regulations Publication
Comp Bulletin IMPC #23-02: 12/21/22 2023 IMSA Michelin Challenge Sporting Regulations Updates
Comp Bulletin IMPC #23-03: 01/06/23 ROAR and Rolex 24 Event Driver Helmet Inspections
Comp Bulletin IMPC #23-04: 01/11/23 IMSA Michelin Challenge Sporting Regulations Updates
Comp Bulletin IMPC #23-05: 01/17/23 Additional Trailers Logistics Plan
Comp Bulletin IMPC #23-06: 03/02/23 Indianapolis IMSA Sanctioned Test Information
Comp Bulletin IMPC #23-07: 05/03/23 IMSA Michelin Challenge Sporting Regulations Updates
Comp Bulletin IMPC #23-08: 06/28/23 IMSA Michelin Challenge Sporting Regulations Updates
Comp Bulletin IMPC #23-09: 10/05/23 IMSA Michelin Challenge Sporting Regulations Updates
IMSA VP RACING SPORTSCAR CHALLENGE
Comp Bulletin VPRC #23-03: 01/06/23 ROAR and Rolex 24 Event Driver Helmet Inspections
Comp Bulletin VPRC #23-04: 01/11/23 IMSA VP Racing SportsCar Challenge Sporting Regulations Updates
Comp Bulletin VPRC #23-05: 01/17/23 Additional Trailers Logistics Plan
Comp Bulletin VPRC #23-06: 03/29/23 IMSA VP Racing SportsCar Challenge Sporting Regulations Updates
Comp Bulletin VPRC #23-07: 06/28/23 IMSA VP Racing SportsCar Challenge Sporting Regulations Updates
Comp Bulletin VPRC #23-08: 09/20/23 IMSA VP Racing SportsCar Challenge Sporting Regulations Updates
Comp Bulletin VPRC #23-09: 10/05/23 IMSA VP Racing SportsCar Challenge Sporting Regulations Updates
pORSCHE CARRERA CUP
Comp Bulletin PCCNA #23-02: 10/05/23 Porsche Carrera Cup North America Sporting Regulations Updates
LAMBORGHINI SUPER TROFEO
MAZDA MX-5 Cup
Comp Bulletin MX5 #23-01: 11/04/22 2023 Mazda MX-5 Cup Sporting Regulations Publication
Comp Bulletin MX5 #23-02: 01/12/23 Mazda MX-5 Cup Sporting Regulations Updates
Comp Bulletin MX5 #23-03: 06/12/23 Mazda MX-5 Cup Sporting Regulations Updates
Comp Bulletin MX5 #23-04: 10/05/23 Mazda MX-5 Cup Sporting Regulations Updates