1. Eligibility and classification of all machines is subject to the final determination of the USCRA, consistent with the RR, and subject to the USCRA's sole and exclusive authority to amend the Rules and Regulations.
2. Materials and Design: Frames, swingarms, forks must be of period design and materials; any design not clearly documented as a period design must be submitted to the Director or his designee for written approval at least thirty (30) days prior to competition. Steel tube frame construction only. Forks must be of a type, size and style available during the period: no post-period modifications. Rear suspension units must be of a type available during the period: remote or external reservoirs prohibited.
3. Bodywork and ancillaries including tanks, seats, fairings, fenders, handlebars, footpegs, and exhausts (silencer design excepted) must be of an applicable period style and materials (carbon fiber components prohibited).
4. Belly pans are required on all four-stroke solo machines. The belly pan should be constructed of steel or other suitable material and be of a sufficient size and depth to adequately cover the surface area of the bottom plane of the motor and have the ability to contain at least 3 quarts of fluid. The belly pan should be affixed to the chassis at a minimum of three points. In addition, the belly pan must contain an absorbent material created for the sole purpose of containing oil. McMaster-Carr Industrial Supplies features affordable absorbent materials on page 1881 of it's catalog (www.mcmaster.com).It is also recommended that an extra overflow hose be run from a machine's existing overflow catch container to the belly pan. Currently, two strokes (not including sidecars) are exempt from this requirement.
5. Engine specifications and ancillaries: Alterations must be consistent with the spirit of period modifications, except that electronic ignitions, belt primary drives and modern roundslide, nonpumper carburetors are eligible. No forced induction.
6. Pump or commercially available race gas only.
7. Noise restrictions shall be determined by the applicable noise regulations set by the race facility for that event. Competitors are urged to verify both applicable regulations and their ability to comply PRIOR to each event. At NHIS for 1999 the noise regulations are 110db @ 1meter @ ½ of redline at a 45-degree angle from the exit of the muffler. At Shannonville it is 106db @ 1 meter @ 1/2 of redline at a 45-degree angle from the exit of the muffler. For the year 2000 season NHIS will be the same as Shannonville. The standard tester will be a Radio Shack model 33-2050 which has a list price of $34.99.
8. New riders are required to provide evidence of successful completion of an accredited Roadracing School or proof of prior roadracing experience in another roadracing organization.
9. Competitors must wear approved riding equipment consisting of leather gloves, leather jacket and pants that zip together or one piece leather suit and leather boots with a minimum height of 8 inches from the top of the sole and overlapping the pants. Back protectors are required for all riders.
10. Helmets with Snell M2000 certification required. Helmets, which have been damaged, must be replaced. Snell 2005 helmets will be required for the 2007 season.
11. Race numbers must be displayed in three locations: front and each side. Numbers must be clearly readable with the rider in position, with a minimum height of 6 inches and a 1-inch brush stroke.
12. Use of tire warmers is prohibited.
13. International (per F.I.M.) recommended racing numbers and number plate colors:
    Required at Canadian events, not strictly enforced at NHIS.  In the absence of international colors, then White plates with Black numbers will be the standard.
     

    Class	Number Color	Background Color
    Early Vintage	White	Red
    Pre '65	Red	White
    50 GP	Black	White
    200 GP	White	Black
    250 GP	White	Green
    350 GP	White	Blue
    500 GP	Black	Yellow
    Open GP	Black	White
    LWSV	White	Blue
    MWSV	Blue	White
    HWSV	Black	Yellow
    Period IV - F1	Black	White / 1" Green Border
    Period IV - F2	Black	White / 1" Red Border
    Classic Sidecars	Black	White
    Supervintage Sidecars	Black	Yellow

14. All machines must meet the safety regulations of the sanctioning body for each event; it is the competitors' responsibility to find out definitely the regulations in effect, and comply with them. Safety preparation includes but is not limited to:

    A) Safety wiring of critical components required. Wire manufactured for the purpose of lockwiring must be used. Stainless steel type with a diameter of .032 is most common. The improper wiring of components can be a major problem at Tech Inspection. Poor wiring is worse than no wiring.
    B) Anything that holds fluid in should be lockwired, i.e., oil filler, level plugs, line bore plugs, oil filter bolts and drains, external oil lines and oil drains.
    C) All oil coolers must be securely mounted in a protected area. Recommended cooler lines are lockwired flare (swaged) fittings or banjo bolts, if hose clamps are used they should be lockwired and checked every event.
    D) All fuel lines must be clamped or lockwired.
    E) All fuel tank overflow lines and all engine and transmission breather hoses must be securely clamped or lockwired and exit into a catch tank.
    F) All catch tanks must have at least a 6 oz. capacity and be situated so they will not normally overflow unless more than 2/3 full.
    G) Carburetor drain plugs should be lockwired or secured with a fuel-proof sealant.
    H) All fork drains must be safely wired or securely taped.
    I) All brake stay bolts, brake torque arm bolts and brake-mounting hardware must be lockwired or secured with a cotter pin.
    J) All brake rods and cables with threaded adjusters must be wired or cotter pinned to prevent loss of adjuster nut.
    K) Axle nuts must be lockwired or secured with a cotter pin.
    L) Exhaust systems must be securely mounted and bolts lockwired. A secondary security system is encouraged.
    M) All throttle cables must be secured to the throttle housing by lockwire. All throttles must snap shut without assistance at any steering position.
    N) Master link clip must be installed with the open end of the clip installed pointing away from the direction of chain travel, and the clip must be lockwired.
    O) Footpegs must be rubber covered and lockwired.
    P) Metal tire valve stem caps must be used.
    Q) All turn signals, luggage racks, mirrors, non-essential brackets, braces, grab rails, center and side stands must be removed.
    R) Operating kill switch.
    19) All machines, both solo and sidecars, general good condition, no cracks in the frame, swing arm or bodywork. No oil or fuel leaks or oil/fuel leak stains. All crash damage must be repaired and repainted by the next event, no primer or rust. Wiring and cables not frayed. No jagged edges. Reasonable workmanship and appearance standards will be enforced.

15. Steering brakes and controls properly adjusted. Steering stops fitted to prevent clip-ons, handlebars or controls from contacting fuel tank or fairing at full steering lock in either direction.
16. Machine Eligibility Requests for clarifications or exceptions to the RR must be in writing to the Director of his designee; the Director or his designee of such request will provide responses no later than thirty (30) days from the date of receipt. Exceptions to the RR consistent with the spirit of the RR may be made at the sole discretion of the Director or his designee, which exceptions are final and may not be appealed.
17. Pre-entry Advance registration is strongly recommended. Please mail early, entries must be received no less than one week before the event with payment. entries without payment will not be accepted. Please use our forms for all entries. Pre-entries will be at a lower cost than post entries. The post entry premium will go towards an injured riders' fund. If for any reason you are unable to attend an event that you pre-entered, at your request either your check will be returned or you can get a full credit for any other USCRA event.
18. Protests Protests may be made for machines participating in USCRA events which alleged in good faith to breach these RR. Protests must be in writing, clearly state the breach of these RR providing the basis of such protests, and be delivered in hand with a $50. cash fee to the Director or his designee no later than thirty (30) minutes after completion of the specific race in which the protested machine participated. Final, non-appealable written findings shall be issued upon such protest within thirty (30) days of the event in question. If protest is upheld, fee returned to the protesting party: if protest is denied, fee paid to rider protested.
19. Any rider found to be acting or riding in a dangerous or un-sportsmanlike manner shall have his actions reviewed by a committee comprised of at least three of the following officials or their designees, Race Director, U.S.C.R.A. Director, Safety Director, Competition Director, Referee. The committee may recommend up to and including revocation of riding privileges, for a specified time, probationary riding status for up to 13 months, or other disciplinary action as deemed necessary.

Table of Contents (click on any item to view that page)
UPDATED 2005 / 2006 RULEBOOK!
Names and Addresses
Class Overview
Bumping
Championship Points
General Rules
Formula CB350
American Twins
Endurance Racing