For the 2023 competition and future competitions, the National Technical Inspection team has updated its Technical Number Assignment Procedure for event operations. Tested in 2022, operations will continue with the first 25 teams through engine check being assigned tech numbers 1-25 which will kick off frame checks for Day 1 of the competition.
The complete guide and instructions for the process can be found online under Series Resources – Technical Inspection Resources – Additional Technical Inspection Resources – Technical Number Assignment Procedure.