June 26, 2023 - The NMCA Tech Committee clarified the permitted Firmware and Software in Factory Super Cars today, listing the accepted Haltech Firmware for Ford, Chevrolet and Dodge combinations. 
 
2023 NMCA Rule Amendments can be found here: https://docs.google.com/document/d/1tmtr45nhZZnkXhh2Uax1KrpVA72lYPt8/edit
 
Rules are posted on the NMCA website rules page: https://www.nmcadigital.com/classes-and-rules/c21
 
Rule Requests or Questions should be directed to [email protected]