The 2023 Modified Category rules are now largely written as a requirement-based rule set. The intent is to provide clear rules for the class without having to review the Stock and Prepared rules for any impacts to the Modified class rules and also to eliminate some vague rules that were open to different interpretations. Additionally, new rules have been added in regard to convertibles and engine location.

Those vehicles that have been modified in excess of these Modified rules are encouraged to review the Constructor class rules. Regions are also reminded that class rules 3.3.C through 3.3.G are not mandatory and that they are free to create what works for them.

Please review the proposed ruleset and send feedback to by 9/30/22.