SUPPLEMENTARY REGULATIONS
CHICAGO REGION, SPORTS CAR CLUB OF AMERICA, INC. PRESENTS
Level 1 Time Trial (TT) September 6, 2025 at Autobahn Country Club, Joliet, IL

This Level 1 Time Trial (TT), Sanction No. 25-TTTA-XXXXX, 9/6/2025 at Autobahn Country Club, Joliet, IL, is organized by the Chicago Region, Sports Car Club of America, Inc. (SCCA), and will be held under the current SCCA Time Trial Rules and official updates, except as modified by these Supplemental Regulations. Please read full rule set at: https://timetrials.scca.com/pages/tt-basics

Vehicle Classing:

Please do your best to class your car as accurately as possible before the event. The most up-to-date classing info is available here (see the Time Trial guide at SCCA Class My Car)
Not sure? Email us BEFORE the event and ask!
Classes:
- Cars are classed according to each vehicle's modifications and relative power. Chicago Region SCCA uses most of the same categories as SCCA Time Trials -- Sport, Tuner, Max, and Unlimited -- although unlike National events, our region excludes non-streetable cars. Not sure how to class your car? Please select contact the registration team -- in advance of the event, please -- and we'll do our best to get you sorted.
- Click HERE for the full SCCA Time Trials National Classing guidelines -- including the "Class My Car" option if your car is not listed.
  - Sport Category, which ranges from Sport 1 (higher performance) to Sport 6 (more modest performance), is for daily-driven street cars on tires with a treadwear of 200 or higher. Sport Category allows only minimal modifications; click HERE for the full Sport Category guidelines.
  - Tuner Category is also intended for street-driven vehicles with a treadwear rating for 200 or higher, but here there are allowances for some bolt-on modifications for tuning and adjustment. Tuner Category ranges from Tuner 1 to Tuner 5, and there is room for your SCCA Solo (autocross) ST cars, too, as long as they run on TT legal tires. Click HERE for the full Tuner Category guidelines.
  - Max Category is where you find "Maximum" street cars: engine swaps, aftermarket or increased forced induction; suspension geometry changes; or even aftermarket wings and bodywork. Max Category ranges from Max 1 to Max 5, and this might be where you enter your approved Kit car; click HERE for the full Max Category guidelines.
  - Unlimited Category is for those production-based vehicles that are not street-going or on DOT tires with less than 200 treadwear ratings, or are on non-DOT, full racing tires. Unlimited is divided into Unlimited 1 (production silhouette, but over the displacement limits or under the weight limits for Unlimited 2) and Unlimited 2 (minimum of 1750 pounds with driver and maximum displacement of 3.0 liters). Remember that ANY car running on sub-200 treadwear or race tires must be classed in Unlimited. Click HERE for the full Unlimited Category guidelines.
- What if my vehicle isn't on the competition list? Use the "Class My Car" link, enter your vehicle's information / options / trim level, and SCCA National will review your info and get back to you!

Race cars are not eligible for this event but are welcome in the Autobahn Classic Race Weekend or the Autobahn Test Day (links will be updated for 2025 as they become available).

Membership: All participants are required to be SCCA members. Anyone who does not have a current annual membership on their person (or can show it electronically, on their phone) will be required to purchase a weekend membership for this event through Motorsport Registration.
Drivers: All drivers must be at least 16 years of age and possess a full, valid, and current driver's license (not a permit) issued by their state of residence. All drivers will be asked to show their driver's license at the SCCA check-in table. Drivers under 18 must have a completed Minor Annual Waiver (see below) already on file with the National SCCA office.
Minor Drivers: Any driver under 18 must be a full SCCA member and have a Minor Annual Waiver on file with the National SCCA office before participating in this event. The Minor Waiver must be submitted and processed by the SCCA National office before the driver attends the event. Instructions for Digital Annual Waivers are available here.
Tech Sheets and Helmets: All drivers need to print, fill out, and bring to check-in a completed tech inspection sheet (click to print) and a helmet meeting current Time Trials certifications at the SCCA check-in table before the event. Helmets with only a DOT (highway) rating are inadequate for track use and will not be accepted. Loaner and rental helmets will not be available for this event.
Transponders: Transponders will be available for rent for $30 each, and they may be picked up at registration. Competitors may register and use their own transponders with approval from staff. All competitors must secure transponders to participating vehicles.
Car Numbers: All registrants are REQUIRED to have car numbers clearly visible to track workers -- from a distance, and at speed -- on both sides of the car. Typically, this means numbers should be 8" to 10" tall and in a color contrasting with your vehicle's body color. A local supplier is https://knmmagnetics.com for magnetics, digitals, and vinyl. Painter's tape in a contrasting color is acceptable, and temporary numbers are best applied after arrival at the track.
Convertibles:
- It is highly recommended that all convertible vehicles be equipped with an aftermarket roll bar that meets or exceeds the standards set in the Time Trials Safety Standard Level 2 (see those standards here).
- However, minimum safety standard requires the vehicle meets at least one of the following criteria and is not subject to any of the listed exceptions:
  - 1. Convertible vehicles up to and including the 2005 model year must have rollover protection meeting one of the following criteria:
    - A. The vehicle is equipped with documented factory installed roll over protection. (Examples of manufacturer-documented roll over protection include hydroformed and reinforced a-pillars or windshield frame and factory installed roll bars and/or “pop-up” bars that are designated as roll over protection.)
    - B. The vehicle is equipped with a commercially produced roll bar or roll cage which is described by the manufacturer to provide track-appropriate rollover protection. (E.g., “style” bars are not acceptable.)
      - 1. Braces and portions of the main hoop subject to contact by the driver’s or passenger’s helmet, as seated normally and restrained by seatbelt and harness, must be padded with a non-resilient material such as Ethafoam® or Ensolite® or other similar material with a minimum thickness of 1/2 inch. Padding meeting SFI spec 45.1 or FIA 8857-2001 is strongly recommended.
    - C. The vehicle is equipped with a roll bar that meets the Safety Level 2 standards for material and construction.
  - 2. Convertible vehicles of the 2006 model year or later must have a roll bar that meets the Safety Level 2 standards for material and construction unless one of the following criteria is met.
    - A. The vehicle is equipped with documented factory-installed roll over protection or a commercially produced roll bar or roll cage which is described by the manufacturer to provide track-appropriate rollover protection.
    - B. The vehicle is six (6) cylinders, with the OE drivetrain and may only be naturally aspirated.
    - C. The vehicle is four (4) cylinders or less, with the OE drivetrain, including any forced-induction equipment.
    - Note: This means that for 2006+ vehicles, if the engine is not the original equipment model as delivered in that vehicle, aftermarket forced induction has been installed, or the vehicle has more than six (6) cylinders or six (6) cylinders and forced induction of any type, the vehicle must have aftermarket rollover protection or documented factory rollover protection.
  - 3. T-tops and targa top cars:
    - T-top and targa top cars are not considered convertibles, and do not fall under the convertible requirements.

Pertinent dates for this event (all dates 2025):
- Opening date for receipt of entries 12:01 AM CDT — May 10
- Early registration discount expires 11:59 PM CDT — May 31
- Online registration closes 9:59 AM CDT — September 6
Cancellation Policy:
- No charge for cancellations made through MSR, email, or phone before the event.
- Credit cards will not be charged until the event.
Schedule:
- Registration/check-in 8:00 AM to 10:00 AM
- Mandatory drivers' meetings 10:15 AM (location in or near the South Tower)
- On track activities commence 11:00 AM (approximately, but check the race schedule)
Important Notes:
- Drivers may be held responsible for damages to property, including track and environmental damage.
- Drivers will need an approved helmet, closed-toe shoes, and long pants in order to go out on track. We will not have rental helmets available for this event.
- Ride-alongs are not permitted during competition events.
Organizers:
- Chicago Region, Sports Car Club of America, Inc.
- 921 Lawn Circle
- Western Springs, IL 60558-2262
- Event Lead: George Laws
- Registrar: H. Ingraham
Registration information:
- The registrar for this event is
- H. Ingraham
- 847-471-3218
- chitrackdaysttregistrar@gmail.com

Drivers' Meeting:
- There will always be a mandatory drivers' meeting for all participants with in-depth instructions on flag rules, safety and track etiquette; this will take place 30 minutes before the course goes hot.
- Plan to arrive early enough to get through registration and prep your car before the meeting. Information given at the meeting is crucial to EVERYONE for a safe and smooth event.
- Any drivers not in attendance at the drivers' meeting will not be permitted to drive until they have met with the Lead Coach. No refunds, no exceptions.

Below are the Autobahn Country Club track rules. They are considered part of these supplementary regulations and are enforceable as such.

Camping. Camping by Participants may be permitted by Autobahn Circuit at its sole discretion, and shall be restricted to certain areas. Autobahn Circuit retains the right to charge a fee for camping, which fee shall include 24-hour security costs incurred by Autobahn Circuit for days in which such camping takes place. No campfires will be allowed at the Circuit.
Facilities Rules and Regulations. Autobahn Circuit reserves the right to impose certain rules and regulations for the Circuit and Lessee agrees to enforce these rules and regulations throughout the duration of the Event. These rules and regulations include, but are not limited to, the following:
Road Course Access. Under no circumstances shall any Participant access the road course in any vehicle unless specifically authorized by, and under the control of, Lessee as part of the Event activities. Unauthorized driving shall be considered grounds for removal of the driver and the vehicle from the premises for the entire Event and for the driver’s exclusion from future events.
Alcoholic Beverages. No alcoholic beverages may be brought on site without the consent of Autobahn Circuit. No alcoholic beverages will be permitted in the pit or main paddock areas until 30 minutes after the end of the final event of each day. Lessee and its Participants (and families or guests) shall comply with all state and local liquor laws.
Minibikes, Dirt Bikes and Four Wheelers. The use of unlicensed vehicles such as minibikes, four-wheelers and dirt bikes shall be restricted to their use as service vehicles for competitors and shall only be used in the paddock area. Only licensed drivers shall use such vehicles. Children are specifically forbidden to ride such vehicles in the paddock or in any of the public areas. Autobahn Circuit reserves the right to further restrict the use of these vehicles if, in the sole discretion of Autobahn Circuit, such use is in any way a danger or annoyance to other persons. No vehicles shall be ridden or driven by any person who is under the influence of alcohol or drugs. Autobahn Circuit reserves the right to remove any person who is in violation of this rule from the premises for the duration of the Event and to forbid their attendance at future events.
Pets. All pets must be kept on a leash at all times, and all pet waste must be removed and disposed of.
Quiet Periods. No racing or unmuffled engines may be run outside of the designated times as noted in Section 4.
Campfires. No campfires will be allowed at the Circuit.
Minors and Children. All minors and children must be under the direct supervision of an adult at all times.
Electricity and RV Hook-up. Participants (and families or guests) are prohibited from using any Circuit electrical and waste hook-up facilities unless consented to by Autobahn Circuit, and the use of such facilities may be subject to a separate fee.
Additional Regulations. Autobahn Circuit reserves the right to impose additional rules and regulations at any time. Such additional rules and regulations shall be provided in writing to Lessee who shall consider them to be part of this Agreement.