Rules and Regulations

For the 2025/26 competition season, there will be two classes for students to compete in: Development and Professional. Development class teams enter a 3D-printed car (see Development Technical Regulations) and will produce shorter versions of the portfolios. Professional Class teams are required to CNC manufacture their car (see Professional Technical Regulations). Additional differences between the classes are detailed on the Competition Classes page.

Be sure to look for the green and blue text in the competition regulations that differentiate Regional Finals and National Finals rules!

Development Class

*The Development Class Technical Regulations have been updated to allow the use of CNC manufacturing for the car body component and the Car Minimum Weight (D3.6) has been increased to 80.0g (previously 60g). These regulation changes have been updated in the Scrutineering and Design & Engineering Scorecards in the Competition Regulations Appendix. No other regulations have been changed.

Professional Class

Clarifications

Official rules inquiries will be posted in this section along with the lead judges’ answer (see Competition Regulations for information on submitting an official rules inquiry).