Technical Bulletin IWSC #25-01: 08/19/24 2025 Technical Regulations Release: GTD-PRO, GTD 

Technical Bulletin IWSC #25-02: 10/25/24 2025 Technical Regulations Release

Technical Bulletin IWSC #25-03: 10/25/24 Spin Test Submission Update: GTP, GTD-PRO, GTD

Technical Bulletin IWSC #25-04: 10/25/24 Refuleing Data Update: GTP, LMP2, GTD-PRO, GTD

Technical Bulletin IWSC #25-05: 11/01/24 IMSA 2025 Bosch Scrutineering System Manual (BSSM) Updates - GTP, GTD, GTD-PRO

Technical Bulletin IWSC #25-06: 11/01/24 IMSA DBC Updates - GTP, GTD, GTD-PRO

Technical Bulletin IWSC #25-07: 11/01/24 IMSA GTP, GTD, GTD PRO Regulatory Control Diagram Update

Technical Bulletin IWSC #25-08: 11/08/24 IMSA GTP, GTD-PRO, GTD Spin Test Data Sub Deadlines - 2024 Nov Daytona Test 

Technical Bulletin IWSC #25-09: 11/08/24 IMSA Data Stick Collection - 2024 November Daytona Test

Technical Bulletin IWSC #25-10c1: 11/12/24 IMSA BoP: November Daytona Test Event Corrected 

Technical Bulletin IWSC #25-11: 11/14/24 IMSA GTP, GTD PRO, GTD Power Correction Factor: November Test Event 

Technical Bulletin IWSC #25-12: 11/22/24 IMSA Rolex 24 Post Race Technical Inspection - GTP, GTD PRO

Technical Bulletin IWSC #25-13: 11/22/24 2025 Technical Regulations Update: GTD-PRO, GTD, LMP2

Technical Bulletin IWSC #25-14: 12/11/24 IMSA Data Stick Collection: ROAR and Rolex 24

Technical Bulletin IWSC #25-15c1: 1/7/25 IMSA GTP, GTD-PRO, GTD Spin Test Data Sub Deadlines: 2025 ROAR and Rolex 24

Technical Bulletin IWSC #25-16: 1/7/25 IMSA 2025 Bosch Scrutineering System Manual (BSSM) Updated - GTP, GTD, GTD-PRO

Technical Bulletin IWSC #25-17: 1/7/25 IMSA DBC Updates - GTD, GTD-PRO

Technical Bulletin IWSC #25-18: 1/9/25 IMSA BoP: Daytona ROAR Before the 24

Technical Bulletin IWSC #25-19: 1/10/25 2025 Technical Regulations Update: LMP2

Technical Bulletin IWSC #25-20: 1/10/25 IMSA 2025 Bosch Scrutineering System Manual (BSSM) Updates - GTD, GTD-PRO

Technical Bulletin IWSC #25-21: 1/15/25 IMSA 2025 Bosch Scrutineering System Software Update - GTD, GTD-PRO

Technical Bulletin IWSC #25-22: 1/16/25 IMSA GTP, GTD-PRO, GTD Power Correction Factoror: ROAR Event

Technical Bulletin IWSC #25-23: 1/16/25 2025 Technical Regulations Update: GTD-PRO, GTD

Technical Bulletin IWSC #25-24: 1/21/25 2025 Technical Regulations Update: GTD-PRO, GTD

Technical Bulletin IWSC #25-25: 1/22/25 IMSA BoP: Rolex 24 At Daytona Event 

Technical Bulletin IWSC #25-26: 1/22/25 IMSA GTP, GTD PRO, GTD Power Correction Factor: Rolex 24 at Daytona event

Technical Bulletin IWSC #25-27: 2/6/25 IMSA Spin Test Data Submission Deadlines: Sebring Test 

Technical Bulletin IWSC #25-28: 2/6/25 IMSA BoP: Sebring Test Event 

Technical Bulletin IWSC #25-29: 2/10/25 IMSA GTP, GTD PRO, GTD Power Correction Factor: Sebring Test Event

Technical Bulletin IWSC #25-30: 2/10/25 IMSA Regulatory Control Diagram Temporary Update - Sebring Test - GTD, GTD-PRO

Technical Bulletin IWSC #25-31: 2/26/25 IMSA GTP, GTD, and GTD PRO Regulatory Control Diagram Update 

Technical Bulletin IWSC #25-32: 3/5/25 IMSA 2025 Bosch Scutineering System Manual (BSSM) Updates - GTP, GTD, GTD-PRO

Technical Bulletin IWSC #25-33: 3/5/25 2025 Technical Regulations Update: GTD-PRO, GTD

Technical Bulletin IWSC #25-34: 3/5/25 IMSA Spin Test Data Submission Deadlines: 12 Hours of Sebring

Technical Bulletin IWSC #25-35: 3/6/25 Sebring 12H Race IMSA Data Sticks - GTP, GTD-PRO, GTD

Technical Bulletin IWSC #25-36: 3/6/25 IMSA BoP: 12 Hours of Sebring Event 

Technical Bulletin IWSC #25-37: 3/6/25 IMSA GTP Regulations: LMH Regulatory Clarification 

Technical Bulletin IWSC #25-38: 3/6/25 IMSA GTP, GTD, and GTD PRO Regulatroy Control Diagram Update

Technical Bulletin IWSC #25-39: 3/11/25 IMSA GTP, GTD PRO, GTD Power Correction Factor: Sebring 12 Hour Event

Technical Bulletin IWSC #25-40: 4/2/25 IMSA Spin Test Data Submission Deadlines: Grand Prix of Long Beach

Technical Bulletin IWSC #25-41: 4/3/25 IMSA GTP, GTD and GTD PRO BSSM Update

Technical Bulletin IWSC #25-42: 4/3/25 IMSA BoP: Long Beach Event

Technical Bulletin IWSC #25-43: 4/10/25 IMSA GTP, GTD Power Correction Factor: Long Beach Event 

Technical Bulletin IWSC #25-44: 4/16/25 IMSA DBC Updates - GTD, GTD-PRO