A. VEHICLE ELIGIBILITY: Competition is open to all vehicles conforming to the Open, Open Index, and Ladies Index National classes and National Supplemental classes, as defined by the 2023 ProSolo Rules.

B. DECALS: 

  1. The Tire Rack® is the title sponsor for all 2023 SCCA® National Solo® events, including National ProSolo® events. Participants in these events are required to run the title sponsor decal, which is a windshield decal that is to be used at the top of the windshield. Vehicles without windshields or with plastic windshields may place the decal on the front of the car in a highly visible location approved by the Chief of Compliance. Decals other than the official Tire Rack® decal, except those required by ProSolo Staff, are prohibited on the windshield.
  2. Additional required event decals are one SCCA® (on the front) (legacy SCCA wheel and new SCCA decals will be accepted for 2023) and 2 National Tour decals (one on each side).
  3. A 2D-style barcode is used by National Solo for each competitor's helmet. This barcode should be affixed to the competitor's helmet in an accessible location for scanning at the start line. Any and all other barcodes (SCCA regional or for other events) must be covered during the event so the National Solo barcode is the only one visible.

C. TECH PROCEDURES:

  1. Safety Inspections (Solo Rules 3.3.3) should be completed at the event site and will be completed by competitors using a Self-Tech form.
  2. Solo Rules 3.7 Vehicle Identification will be checked. The official Tire Rack decal and tech stickers are the only decals permitted on the windshield
  3. Competition vehicles that have a required minimum weight (Street Modified, Prepared, Modified, CAM, and Kart) will inform Tech of that weight so the weight and vehicle wheelbase can be posted on the tech sticker. This is to allow other competitors to know the declared minimum weight and to reduce any delays at the scales during event impound procedures.

D. PENALTIES FOR INCORRECT NUMBERS OR BARCODES:

  1. Tech will confirm vehicle identification (Solo Rule 3.7) and helmet barcodes are compliant. The vehicle will not pass tech if not compliant.
  2. Competitors at the start line with the wrong number on their car, 2 sets of numbers, or the incorrect class showing will receive a warning for the first offense, a cone penalty for the second offense and may receive a DSQ for three or more offenses at the same event.
  3. Competitors at the scanner with more than one (1) barcode showing on the helmet will receive a warning for the first offense, a cone penalty for the second offense and may receive a DSQ for three or more offenses at the same event.
  4. A driver at the scanner or the start line without the appropriate helmet decal (Solo 2023) will be directed to exit the stage lane. Go directly to the Tech/Impound area to get the helmet inspected and decal applied.

E. IMPOUND PROCEDURES: 

  1. All competition vehicles will be impounded per ProSolo Rules 20.10.K to assure that competitors have complied with the SCCA National Solo Rules and the Supplementary Regulations for the event. Car information verification will also be conducted in Impound.
  2. Vehicles will be impounded following the completion of each Heat until released by the Chief of Impound, their designee, or the Chief Steward. The driver of each vehicle or a designated representative must remain in the impound area near the vehicle during the impound period. Karts will be allowed to be driven to the scales under close supervision by event officials. Impounded vehicles may be held until the results are audited.
  3. ProSolo officials reserve the right to inspect any or all cars to verify conformance to the rules. Drivers should be prepared to show documents of their vehicle specifications and to assist in the verification of vehicle compliance with these specifications.
  4. Competitors may observe but Impound inspectors must not be hindered in their assigned duties by anyone in any way.
  5. Impound does not act on hearsay information regarding competitor concerns. If competitors suspect a rule violation, they should file protests in accordance with the National ProSolo Rules. Rule 20.10.P, Protests.
  6. Classes that have minimum weights are required to be weighed. It is the competitors’ responsibility to know if their vehicle has a minimum weight requirement.

F. SOUND POLICY: Refer to Solo Rules Rule Appendix I. Sound requirements are strictly enforced.

Rationale: Members are asked to realize that sound level measurements are designed to help us be good neighbors to those that work or live near our events. It is not intended as a "gotcha!" to catch drivers unaware. All competitors should come to the event in good faith with appropriate equipment keeping sound levels below the limit. Intentionally "pushing the envelope" of sound levels is in poor taste and puts our sites at risk.

Exceptions to Appendix I of the Solo Rules, 2nd and 3rd paragraphs: 

If a vehicle exceeds 97 dBA on any run during a heat, the Sound Steward or their designated representative will notify that driver of any measurement over 97 dBA in Impound after runs are completed for that heat. (2-driver cars are considered as 2 individual cars.) If a vehicle exceeds 100 dBA on any run during a heat, that driver will be allowed an attempt to reduce the sound level of the vehicle before their next heat. (A "time-out" per ProSolo rules section 20.10.H.15 may be used.) If a viable remedy has been attempted in the judgment of the Sound Steward or representative, the driver will be allowed to run in their next heat. If the driver declines any "repair action" or the "repair" is deemed inadequate by the Sound Steward or representative, the driver will forfeit all subsequent runs in that vehicle (unless an adequate "repair action" is completed before the next heat). If the vehicle exceeds 100 dBA again during a run in any subsequent heat, that heat will be scored DSQ (disqualified) for all runs. If a sound violation incurs a DSQ for a heat, any rerun(s) taken will also be DSQ and the sound-based DSQ will stand. The number of reruns taken will be subtracted from the next remaining heat.

G. TIMING AND SCORING: Refer to ProSolo Rules Section 20.10.J

  1. Class finishing positions will be determined by combining the best corrected time (or corrected index time for Index classes) from each course during the class competition, which will normally consist of two (2) runs per side per Heat.
  2. Official times will be posted following the completion of each class session. Any initial questions about these results should be directed to the Chief of Impound or designate. THE TIMING & SCORING TRAILER IS OFF LIMITS FOR COMPETITORS, CREW, AND SPECTATORS unless invited to enter by an event official.
  3. Live timing is available at sololive.scca.com.