SCCA® National Solo® Rules Overview
The SCCA® National Solo® Rules are a member-generated ruleset built and refined throughout the past 45 years. This
Building and maintaining the SCCA® Solo® Rules involves member requests and input, review by the Solo® Events Board (SEB) and advisory committees before they are either declined or the SCCA® Board of Directors votes them approved.
Keep reading below for rules, how you can be involved in rule
NOTE: Technical Bulletins are periodically issued in Fastrack® News that
Change Proposals Status: OPEN
Solo Rule Changes, Member Feedback, and Clarifications
Want to make a rules change proposal, comment on an open proposal, or ask for a rule clarification? Write to the Solo® Events Board (SEB) using the button below.
To write in a request, to give input on a potential rule change, or get a clarification on a rule, click the link below to take you to the submission form and select "Solo Events Board" from the "choose a program board" field, and choose your category and class to make sure your letter makes its way to the right place.
Current Draft of National Solo Rules
The latest draft of the 2020 SCCA National Solo Rules is draft b, posted February 14, 2020.
To order a printed copy of the 2019 Solo® Rules from Amazon, click here.
Supplemental Classes are offered at National Solo®
Classic American Muscle (CAM)
CAM classes are for traditional American "muscle" cars (performance sedans and sports cars).
View the 2019 Supplementary CAM Rules and CAM Challenge Series here (2019-02-08): https://www.scca.com/downloads/43921-2019-cam-supplementary-rules-and-challenge-series-d-gill-2019-02-08/download
Xtreme Street Category (XS)
New category announced for 2020.
These classes are for 1974 and older import cars in Street Class (HCS) and Race Class (HCR).
Junior Driver Program (Formula Junior Karting)
2020 SCCA ProSolo® Rules
*This document includes classes and ProSolo Index (PSI), updated 2020-02-28
Quick Reference Sheets
- 2020 Helmet Certification Label Chart - posted 2019-12-05
Your helmet must have one of these labels visible. The DOT standard (FMVSS 218) alone is NOT sufficient!
- 2019 Street Category by Manufacturer - 2019-04-29 (Print and take to event registration.) Includes Fastrack News additions.
- 2019 Category Allowances "Cheat Sheet" (2-sided print) - 2019-03-08 (Print and take to registration and/or Tech.)
Questions? Call Doug at 1-800-770-2055 or email at firstname.lastname@example.org.