¶ 1. OFFICIAL IMCA RACES

Art. 1: OFFICIAL IMCA RACES
1.1. the yearly IMCA races
(a) SPRINT RACES AT THE NATS - IMCA (International Model Car Association) organises yearly the IMCA Nats, with at least the following sprint races:
(i) the IMCA Model Car 124 PRO World Championship Sprint with 1/24th BMW M1 E26 Group 4 as stipulated in art. 7.BIS. 
(ii) the IMCA Model Car 124 SEMI-PRO World Championship Sprint with 1/24th Ferrari F40s as stipulated in art. 6.A.
(iii) the IMCA Model Car Production World Championship Sprint with 1/32nd handout NSR Moslers
(b) ENDURANCE RACES AT THE NATS - At the IMCA Nats the following endurance race is always organised:
(iv) the Endurance World Championship with 1/24th  cars as stipulated in art. 7.
(c) OTHER YEARLY RACES - Apart from the IMCA Nats IMCA organises yearly the following race(s):
(v) The European Endurance Championship (EEC) over never more than three meetings with 1/24th cars as stipulated in art. 7.
(vi) The Franco Gianotti Trophy with 1/24th CANAM cars as stipulated in art. 8.
1.2. the RACERS
At the above races in art. 1.1 number of entrants may never be higher than 72, with never more than 12 of the same nation. Racers having omitted to submit their entry form before the expiration date of the subscriptions, can never be allowed at the start of those races. At sprint Worlds number of entrants is maximum 48 in 2009, 40 in the following years.
1.3. THE TWOCLASSES OF RACERS (PROS & SEMI-PROS)
(a) PROS - Experts are racers having won more than 120 IOC-points in the course of their career.
(b) SEMI-PROS - Semi--pros are racers having won less than 120 IOC-points in their career.
1.4. RACERS PER CAR
(a) RACERS - At sprint races there is per race only one racer per car and one car per racer. At endurance races there are two or three racers per car.
(b) ON TIRE CHANGING - At endurance races one tire change is obligatory. Omitting the tire change will be penalised.
1.5. TRACK AT THE IMCA NATS
Only wooden 8-laner tracks, of type MTT with standard dimensions may be used at the IMCA Worlds Sprint & the IMCA Worlds Endurance.
1.6. IOC-RACES AND ATTRIBUTION OF IOC POINTS
(a) THE PARITY PRINCIPLE - Up from 2009 there is again an equal number of international races where IOC-points (I.O.C. = International Overall Classification) can be won: 14 for wing car races, 14 for scale car races and 14 for model car races. In none of the three specialities there can be more than three races of level 1 with res. 30, 22.5, 18, 15, 12, 9, 6, 4.5, 3 and 1.5 IOC points for top-10 finishers. If there are three races of level 1 there must be also three races of level 3 where top-10 finishers win res. 10, 7.5, 6, 5, 4, 3, 2, 1.5, 1 and 0.5 IOC points. If there are only two  races of level 1 in a speciality (wing, scale or model) there are automatically only two races of level 3 in that same speciality. That also implies that there are yearly eight level 2 races per speciality if there are only two level 1 races for that speciality, and there are four level 2 races per speciality if there are three level 1 races in the same speciality. At level 2 top-10 finishers win res. 20, 15, 12, 10, 8, 6, 4, 3, 2 and 1 IOC-points.
(b) ANNUAL LIST OF IOC-RACES - At least one month before the start a new season the complete list of the 42 ( = 3 x 14) IOC-events and their level is published at the IOC web-site. [For 2010 it are the races mentioned here.] No points can be attributed if there are less than 16 racers.
(c) RACES NOT IN THE ANNUAL LIST REWARDED WITH IOC-POINTS - A race not in the list mentioned at art. 1.6.b can be rewarded nevertheless with the same IOC points as a level 3 races if there are at least 6 world champions at the start having won together at least 8 official world championships. They are rewarded at level 2 if there are at least 6 world champions at the start having won together at least 16 official world championships. They are rewarded at level 1 if there are at least 12 world champions at the start having won together more than 24 official world championships. Click here for the list with official world champions.
1.7. MONEY INCENTIVES AT THE IMCA NATS
Except for top-racers there are no longer money incentives for European IMCA racers. Non-European racers coming from overseas can receive a travelling incentive of maximum € 750.00.

Art. 2: PRE-RACE CONDITIONS AT ALL IMCA-EVENTS
2.1. TRACK CONDITIONS
(a) AT MODEL CAR RACES -  All racing goes on clean tracks without the use of any glue. Voltage will be limited  to 14.2 Volts and may be never lower than 13.6 Volts. This voltage is to be measured unloaded, using accurate digital voltmeters to record the values. 
(b) NOTE ON SAFETY - Most cleaning solutions are flammable! Care must be taken during their use. Other necessary precautions should be taken to insure safety.  
2.2. FREE PRACTICE & REGULAR PRACTICE
(a) Free Practice time is minimum 3 hours at sprint races, 4 hours at endurance races. Free practice more than 24 hours before the race is NOT allowed. This principle stands NOT for racers club members (being at least since three months member) or members of the commercial raceway (being at least since three months member) on whose's track the race is contested. Free practice time must be equally spread over all racers (or all cars).
(b) If organised a regular practice over 8 x 3' can be added.
2.3. REGISTRATION, SCRUTINIZING & ENCLOSED ZONE AT MODEL CAR RACES
(a) REGISTRATION - All cars shall be inspected and impounded prior to qualifying and after fining entry fees by an official IMCA scrutinizer. No cars will be accepted after announced registration closing time. Closing time is the same for all cars. At all races chassis should be engraved with the driver's name and number and the body should be marked in the interior with the same number with a spot of non-removable paint or ink. At the technical control cars must be presented body and RTR chassis apart. The race director calls randomly the racers. They have to be present at the race director's stand when scrutineering starts. Irregularities have to be corrected in front of the race director. After inspection the called racer screws body and RTR chassis together.
(b) SCRUTINIZING follows once all cars are in. Non regular cars have never longer than 15 minutes to be corrected so that they meet the technical rules. Cars not back after 15 minutes are out for the race.
(c) ENCLOSED ZONE - Immediately after scrutinizing all model cars remain in the enclosed zone where no work is allowed, except at the race director's discretion. Cars leave the enclosed zone only for racing.

Art. 3: RACE FORMAT AT ALL IMCA-EVENTS
3.1. QUALIFICATIONS
(a) ON QUALIFICATIONS - Organiser decides upon the type of qualifications. If organised, qualifications go in principle over (i) one or two minute(s) per car, or (ii) over 8 x 3' or 6 x 3'. Only the fastest lap is considered.
(b) QUALIFICATION ORDER - Order follows the rank number of the racers, with the best ranked racer starting as last. Rank numbers are based upon the IOC-list of January 1. If there are two or more racers per car only the racer with the highest number of won IOC points is considered.
3.2. FORMAT AT THE SPRINT RACES UP FROM 2010 [NEW!]
(a) WARM-UP RACE(S) FOR THE MODEL CAR PRO SPRINT WORLD CHAMPIONSHIP - Entry will be limited to 32 racers with the PRO status. Number of cars is limited to 32 handout 1/24th BMW M1 cars cars respecting art. 7.Bis. Assignment of the cars by pure lottery. All cars  are driven by one sole racer. There is at least one warm-up rounds of 8 x 3 minutes.
(b) SNAKE PRINCIPLE - One minute qualifications decide upon the composition of the 8 x 3' Quarters. Here the four first of each Quarter the move to the Semis.
(c) SEMIS & MAIN AT THE IMCA 124 MODEL CAR SPRINT WORLD CHAMPIONSHIP (UP FROM 2010) - The 16 best classified racers after all warm-up rounds are selected for the two  8 x 3 minutes Semis.  The 4 best at each Semis move up to the 8 x 5 minutes Main final. Composition of the Semis follows the Snake Principle.
(d) THE MODEL CAR SEMI-PRO SPRINT WORLD CHAMPIONSHIP is preceded by at least one warm-up round and is open for maximum 48 racers with the SEMI-PRO status. They drive their own 1/24th Ferrari F40 respecting art. 6. Qualifications go over 1 minute with the highest IOC-ranked SEMI-PRO starting as last. The Snake Principle decides upon the composition of the 8 x 3 minutes Consis. The 32 best ranked racers after the Consis move to four 8 x 3' Quarters (composition following the Snake Principle) where the four first make the move to the 8 x 3' Semis (composition following the Snake Principle). The four best of each Semi move to the 8 x 5' Main Final.
(d) IMCA PRODUCTION MODEL CAR WORLD CHAMPIONSHIP  - If organised the 1/32nd Worlds go with handout NSR Moslers. There is an apart ranking for PROS racing 4 heats of 8 x 3' and for SEMI-PROS racing 6 heats of 8 x 3'. Composition of all heats following IOC rank number. Should one of the cars behave no longer properly a Track Call is allowed to change the defect car. Should the track call have been unjustified the caller will be inflicted with a 10 laps penalty.
3.4. RACE FORMAT AT EEC
(a) NUMBER OF ROUNDS - IMCA's president decides over how many rounds and events the EEC has to go. That's never more than 3 events and 5 rounds. A one event - one round format is also accepted.
(b) POINTS SYSTEM AT THE EEC (EUROCUP) - At each round the 8 first in class GT1, GT2 & GT3   win res. 20, 15, 12, 10, 8, 6, 4 and 2 point(s). There are 2 racers per car.
(c) STINTS - No racer can do more than 5 stints on 8 segments at endurance races and never less than 3 stints.
(d) OBLIGATORY REAR WHEEL CHANGE AT BENELUX CUP - cf. art. 7.1.8.b and 7.2.8.b. See also art. 5.3.f.
3.5. RACE FORMAT AT THE ENDURANCE WORLD CHAMPIONSHIP
(a) LIMITED NUMBER OF CARS - In principle 16 P1, 8 P2 and 8 GT cars as described in art. 7.
(b) TWO RACERS PER CAR - In principle there are two racers per car, but three can be accorded by the race director.
(c) DURATION is never less than twice 8 x 15 minutes per car with one night section and never more than three sections of 8 x 30 minutes per car with one night section.
(e) ON STINTS - No racer does less than 4 stints on 16 or 6 stints on 24.
(e) TYRE CHANGE - Rear tyres must be changed in front of the race direction during the first segment after mid-race. Teams receive only fresh tyres when the old tyres came back. No change results in a 50 laps penalty.

Art. 4: OBLIGED SHIRTS AT IMCA RACES
4.1. BASIC PRINCIPLE OF THE SHIRTS
At IMCA races all entrants will always receive one or two t-shirts with the racer's name and with his national flag on the front side. Those shirts are obligatory at all races of the IMCA Nats. This shirts are given for free.
4.2.  OBLIGED T-SHIRTS UNTIL PRIZE GIVING CEREMONIAL 
Racers have to keep this shirts until  the end of the prize giving ceremonial. ATTENTION - ATTENTION - ATTENTION - Racers found without at the prize giving will be struck out from all results! Except if allowed by the race direction, showing at the prize giving with someone else's t-shirt will be sanctioned in the same way.

Art. 5: COMMON RULES AT IMCA MODEL CAR EVENTS
5.1. BASIC PRINCIPLE OF MARSHALLING, LANE ROTATION & ENCLOSED ZONE
(a.1.) THE MARSHALS -  All marshalling is exclusively done by the racers of the previous heat, the racers of the last heat being marshal at the first series.  Only marshals can touch a deslotted car. This principle doesn't hold for cars deslotting in front of the drivers stands.
(a2) MARSHALLING DURING THE NIGHT AND LOCAL LAWS ON MINORS - In several countries its NOT allowed that racers younger than full 18 years should compete during the whole night. Where such law is the case marshalling at the night section is to be done by the team mate(s) so that 6 hours of sleep is guaranteed for everybody.
(b) BAD MARSHALLING & YELLING - Putting a car on a wrong lane costs at least 5 laps at sprint races or 40 laps at endurance races. The same principle holds for marshals putting a car in the wrong section at rotation. . Should it be obvious that the error concerning the lane or the section was intentioned the marshal is excluded. Holding up a concurrent's car deslotting in front of the driver's stand is sanctioned as above with 5 or 40 laps. The race director has always the right to replace a too slow marshal by someone else. Yelling at the marshals is sanctioned in 3 steps by warning, 5 laps and exclusion. If several cars deslot at the same place, the first in the provisional ranking has to be put as first in the slot, etc. Here too sanction is 5 or 40 laps for the marshal (and his team) having not respected the rule.
(c) LANE ROTATION AT MODEL CAR RACES is done by those marshals being the closest to the cars. They change the lane stickers and put within the minute the car(s) on their new lane.  There is absolutely no work on the cars during rotation on sanction of disqualification. 
(d) ENCLOSED ZONE - On sanction of exclusion - nobody but the race directors can touch the cars in the enclosed zone. Cars leave the enclosed zone only for racing or for repairs. They are put on the track by the race directors.
5.2. RETIRED CARS & RANKING ORDER
(a) RETIREMENT - is necessary when a car is beyond repair or black flagged.
(b) RANK ORDER & RESULTS - Eliminated racers at the Consis are always classified behind eliminated racers at the Quarters. Racers eliminated at the Quarters are always ranked behind racers doing the Semis. Eliminated racers at the Semis are always classified behind racers having done the Main. However, all disqualified racers and ALL racers having been enforced to retire (due to technical problems or black flag) are always classified behind ALL racers having been not disqualified and having finished the race.
5.3. MISCELLANETOUS
(a) RACE DIRECTOR & SCRUTINIZERS - At IMCA meetings race direction and scrutinizing goes exclusively to non-racers.
(b) LAP COUNTER FAILURE - The lap counter is automatically corrected for all laps 0.2 seconds faster than the track record. In all other situations only the lap counter results are considered.
(c) CONTROLLERS - Racers can use their own controllers under condition that they are not increasing the power. Controllers must be mass produced and available in large quantities on the market. Basic principles for used controllers are:
(c.1.) They regulate the supplied power for use on a given track.
(c.2.) Controllers may never increase of the lane voltage in reference to the power supply voltage.
(c.3.) Regulation of the supplied power must be operated manually by the driver, automated operation of the controller is not allowed.
(d) TRACK CALLS - Only allowed (i) on debris in the slot, (ii) on power failure, and (iii) on non-marshable car(s). Any non-authorized track call results in a 3-lap penalty on behalf of the caller at sprint races and 10 laps at endurance races.
(e) LOW VOICE - On the same sanctions as sub art. 5.1.b the race direction may hear at model car races from the racers no other words than "Double!", "Under the bridge", "My car on ..." at too slow marshalling, or "Track!" on track call. Yelling and shouting are strictly forbidden!
(f) BALLAST RULES - Ballast rules as in art. 3.3.e, 3.4.e and application at the Procar BMW M1 Races can be abolished by the race director on request of one or more racers having not finished in the top-3 of the previous rounds.

   ¶ 3. FERRARI F40 RULES

IMPORTANT NOTE: DON'T FORGET TO READ ART. 11. It's the basic article in IMCA SPRINT RACES.
Art. 6: FERRARI F40
6.1. GENERAL DESCRIPTION
DEFINITION -  1/24 Fujimi's hard plastic Ferrari F40 LM & Ferrari F40 GT and 1/24 Tamiya Ferrari F40, being a true scale copy of the F40 race cars having been seen in competition, are considered as Ferrari F40 race cars.
6.2. WEIGHT & DIMENSIONS , GROUND CLEARANCE
(a) Minimum weight for the complete RTR car is 185 grams with minimum 50 grams for the body inclusive of the body mounts and with a minimum of 135 grams for the chassis.
(b) Minimum ground clearance before the start is 0.6mm.
(c) Maximum spur is 80mm in front and 83.5 mm in rear, measured to the outermost edge of the wheels at their widest points excluding the wheel inserts.
(d) Maximum body width in front is 80.5 mm, in rear 83.8 mm. Minimum height, standing on the tech bloc, is 45.0mm.
6.3. CHASSIS, MAKE AND TYPE
(a) CHASSIS - Only commercially available model car chassis, figuring in IMCA's Exhaustive List with Homologated Parts. are allowed. Mixing of chassis parts between different manufacturers is allowed as long as the parts are in the list and that they are not transformed by cutting, drilling or sanding. Assembly of chassis parts must be done via bolts and/or glue using to the original holes provided in the Chassis. Positioning of the parts is free. Allowed  replacements are restricted to (i) motor bracket, (ii) guide, guide holder & guide nut, (iii) ball-bearings, (iv) braids, of the guide nut, (vi) H-section (may be in carbon),  (vii) the spring plate and (viii) body mounts/holders. Original body holders may be replaced by carbon lightweight holders, or by any other type of any make in the list. No other carbon parts than the body mounts, the H-plate, the spring plate, an independent front and rear suspension and the guide holder as in the IMCA list may be used. The opening for the motor in the ground plate may be closed by any piece of any make.
(b) CHASSIS PARTS - All commercially available model car chassis parts, figuring in the Homologation List, are allowed. Mixing of chassis parts between different manufacturers is allowed. Assembly of chassis parts must be done via bolts and/or glue using to the original holes provided in the Chassis. Positioning of the parts is free.
Except for the (i) bolts, (ii) nuts, (iii) spacers, (iv) washers, and (v) braids no other parts of the chassis may be used than those mentioned in IMCA's Exhaustive List with Homologated Parts. This list will be updated twice per year. Using pieces of obscure shops or existing only for one racer or a small group of racers will be stopped in this way. IMCA is strongly opposed against all attempts of frustrating and unfair racing at the Worlds.
6.4. MOTOR, GEAR & PINION
(a1) MOTOR - Only the handout sealed ProSlot PS4000-IMCA  with balanced and hand wound armature, with a 50 pitch 9T pinion already soldered to the shaft, and with ball bearings in the can will be used. After the race(s) all such motors have to come back. All handout motors will be already broken in.  Motor must be bolted to the chassis using the original mounting holes and mounting bracket. Motor must be mounted with the magnets in a horizontal plane. Soldering of the motor is forbidden. Lead wires between motor and braids are free.
(b) PINION & GEAR - 9T M50 pinion for 2mm ø motor axles and 44T M50 Spur gears .On MTT  gear ratio is always 44:9.
6.5. WHEELS, AXLES & BEARINGS
(a) AXLES & BEARINGS - Only steel 3mm Ø blank axles and NO differential.  Allowed are 6mm diameter ball bearings of any make. Fitment to the chassis must be preformed without any cutting or modification to the chassis.
(b) WHEELS - Front rims must be aluminium min 21mm Ø outside, 20mm Ø inside. Front wheels are always at least 5 mm wide and minimum 25.5mm high. Front wheels must touch the track over min. 5 mm. Rear wheels are handout Scaleauto wheels 27,5mm Ø 13 mm wide, 20mm Ø inside. Tyres are black. Front wheels must touch the track over at least full 5 mm.
(c) INSERTS Wheel inserts can be cut from part C4 but may be replaced by handcraft inserts of the same type.. There is no racing without the 4 wheel inserts. If one or more inserts are lost the car has to make a pit stop.
(d) ON CAMBER FRONTS - Inclination may never be more than 3°. The inner side of the complete wheel may be lower than the 25.5 mm sub art. 6.5.b, but only to make that the tyre is flat on the track over the complete 5 mm. Seen from above wheels must be covered entirely by the body.
6.6. SCALE BODY OF A FERRARI F40
(a) SCALE & MATERIAL - Only allowed bodies are the 1/24th Fujimi F40 bodies  and the Tamiya F40 body.
(b) BODY PARTS - All parts in the kit to make the exterior body must be used. Lexan windows are NOT allowed. As the F40 motor can be seen thru the rear window, the visible part of that motor must be made exclusively by parts in the kit. One is NOT allowed to use the lexan motor version.
(c) TRANSFORMING TAMIYA F40 INTO F40 LM & F40 GTE - is allowed by cutting an opening in the front bonnet and by modifying the rear spoiler. Slotracing Werk released recently a lexan part to be put in the cut opening.
(d) BALLAST WEIGHT- It is not allowed to add ballast weight to the body to achieve the required min. weight of 50 gram.
(e) COCKPIT - Lexan or paper cockpit is allowed.  Dash board & Roll Bar are  those in the kit, incl. steering wheel. A three-dimensional driver, with complete legs (minimum upper leg) and at least one hand fixed to the steering wheel, and a driver's seat is obliged. The material used to construct the driver is free but the head/helmet should be made of hard plastic, rubber or resin. A Roll-bar (or roll-cage), steering wheel, dash board,, racing safety harness, fire extinguisher (N5 and N6) and gear shift (L2) are required.
(f) NOSE OPENING - The nose opening must be closed from the interior by using a  cut carbon part or by using a fine metal network.
(g) WHEEL INSERTS - Being 21.1mm high the competition wheels in the Tamiya box can never be used as inserts. The wheels of the street version (also in the Tamiya kit) can be used as inserts, but wheels inserts may be replaced by hand crafts inserts of the same type.
(h) RACING NUMBERS & SUNSTROKE - Correct race numbers & sunstroke are obligatory.
6.7. REPAIRS FOR FERRARI F430 CARS
Any part of the Chassis (art 6.3, 6.4) and or Body (art 6.6) that is in contact with the track for a complete lap must be repaired. The following parts must be re-mounted in their correct position should they come off: wheels, insert(s), lane sticker, front and rear windshield
6.8. SANCTIONS & PENALTIES ON FERRARI F40 CARS
(a) UNAUTHORISED TYRE DRESSING- Unless specifically allowed by race direction any form of tyre dressing on handout rear wheels results in disqualification.  On mounting the rear wheels, under the yes of the race direction, it's allowed to use the green voodoo (but only the one given by the race direction) to make the rear wheels softer (not that it helps a lot!)
(b) ON TYRE CHANGING - New wheels must be mounted in racing time. The competitor can re-enter their car only after inspection. Non respect of tyre change - obliged at least at mid-race - results in loss of 10 per cent of achieved laps.
(c) ON ILLEGAL BODIES - If a car is presented at scrutineering, having not respected all rules concerning the body, ballast as subscribed in art. 7.2.1.b should be applied to the body at the highest point under the front bonnet. 
(d) SANDING- Any sanding or dremeling of the body or the wheel arches will be sanctioned by minimum 2 x 15 grams extra weight to be glued into the highest point of the bonnet and highest point of the boot. If the dremeling was hidden and well intended to skirt the rules, exclusion will be the sanction. Cheaters are not welcome at IMCA racing.

¶ 5. PLAFIT BMW PROCAR RULES

Art. 7 BIS: PROCAR BMW M1 SPECIFICATIONS
There exists a separate rule book which can be found here.

¶ 6. TECH RULES CANAM & G5 CARS 

Art. 8: CARS FOR CANAM RACING
8.1. CHASSIS
No other chassis than those mentioned in IMCA's Exhaustive List with Homologated Parts may be used. Use of chassis parts (metal, carbon or GFK) in the same list is allowed. Used T-shafts and springs are free.
8.2. MOTOR
Only the totally unchanged and unopened handout and already broken in PS4000-IMCA motor is allowed. Lead wire, braids, guide and guide nut are free and may be of other makes than those in the list. Motor holder must be or the one offered by the chassis manufacturer or one of those in the list.
8.3. GEAR & PINION
Gear and pinion are free but on MTT tracks gear ratio must always be 44/9  for cars with handout 25.5mm rear wheels.
8.4. FRONT & REAR WHEELS
Front wheels must be in height proportional with those on the real race car. Tread touching the track must be 5 mm wide. Handout rear wheels (25.5 x 13 mm) with black sponge tyres must be mounted on 3 mm axles.
8.6. BODY
(a) Body (in hard plastic, resin, GFK or laminated) must be a 1/24th or 1/25th true scale copy of one of the real race cars having been seen at a specific race of a specific year, equipped  with mirror(s), with exhaust pipe(s), with roll cage or roll bar, with a fire extinguisher, with a three-dimensional racer with full upper legs and one hand at the wheel, with a hard plastic or rubber head + helmet, with a driver's seat, and with wiper(s) if so on the original race car. Lexan bodies are not allowed.
(b) Correct race numbers on the correct places are obligatory.
(c) On the use of PETG bodies thickness is not lower than 20-thousand.
(d) Each body not being at true scale will be refused at the start. In principle only the bodies in bold face in the table below will be admitted at the start. On using other body types, please, contact IMCA at jppro@pandora.be. Racers are always allowed to make a GFK copy of any of the cars in the list below.
(e) Body reinforcements are possible but must be always fixed in a distance of min. 10mm over the bottom line of the body. Reinforcements placed lower as 10mm over the bottom line can only be done by using standard mounting rubber (PF.1212 or SIGMA SG.8214) in combination with flexible mounting glue. A flexible mounting glue (for example HENKEL „Pattex“ oder PLAFIT „Magic Glue“) is a glue wich can be pierced by a pin and wich also reacts as material disconnecting by the use of cleaning-/lighter fluids (for example ESSO 'Tiger').
(f) Adding weight to a body in order to reach the minimum of 40 grams (art. 8.7) can only be done by gluing ballast to the body, but never lower as 10mm away of the bottom line of the body.
8.7. WEIGHT & DIMENSIONS
Minimum weight for CANAM cars is 160 gram RTR with a minimum of 40 gram for the body, incl. body mounts. Seen from above chassis, electro motor and tyres must be completely covered by the body. Original bodies may be made by no means wider.
8.8. GROUND CLEARANCE
Ground clearance starting the race is never under 1 mm, finishing the race never under 0.4mm.
8.9. NO HANDOUT REAR TYRES
In classic racing there is no handout of rear wheels.
 

ALLOWED BODIES ON RACING 1969 CANAM CARS
Autocast Ti-22	1	Truescale	PETG 20-tho	TSR05	$ 6.50 US
Chaparral 2H	1	Mini Exotics	resin	2872	$ 80.00 US
Ferrari 312 P Berlinetta	1	Fischer	resin	2405	$ 99.00 US
Ferrari 612 P Canam 1969	1	Völkl	GFK	40088	€ 79.00
Ferrari 612 P Canam	-	Fein Design	resin	F 612 P Canam	€ 145.00
Ferrari 712 P wing	-	Fein Design	resin	F 612 P Flügel	€ 145.00
Ford G7A Canam	1	Jens Scale Racing	GFK	40101	€ 89.00
Lola T70 Mk3	3	Fein Design	resin	Lola T70 USSRC	€ 140.00
Lola T70 Mk3 Coupe	0	Fein Design	resin	under construction	€ 140.00
Lola T70 Mk3 Coupe	-	Scale & Model Cars	resin	Lola T70 Mk3 B	€ 65.00
Lola T160 Canam	1	Jens Scale Racing	resin	40111 & 40113	€ 79.00
Lola T160 Canam (wing)	-	Jens Scale Racing	resin	40112	€ 79.00
Lola T162 Canam	4	Jens Scale Racing	GFK	40126	€ 89.00
Lola T162 Canam	-	Slotracing Werk	GFK	11580	€ 95.00
Lola T163 Canam	3	Jens Scale Racing	GFK	40110	€ 89.00
Matra-Simca MS630/650	0	LeMans Miniatures	resin	124082	€ 125.00
McLaren Elva M1C Russkit	2	Electric Dreams	PETG 20-tho	ELEB-039	$ 9.95 US
McLaren M6A  NEW	10	Slotracing Werk	GFK	mb6gfk	€ 119.00
McLaren M6A	-	Fisher	resin	2406	$ 99.00 US
McLaren M8A	-	Resilient Resin	resin	McLaren M8	$ 29.99 US
McLaren M8A under production	-	Feign Design	resin	McLar.M8A CanAm	€145.00
McLaren M8B	3	Resilient Resin	resin	McLaren M8B	$ 29.99 US
McLaren M8B  NEW	-	Slotracing Werk	GFK	released Jan 2010	€ 119.00
McLaren M8B no more sold	-	Accurate Miniatures	plastic	5002/5003/5004	$ 18.99
McLaren M12 NEW	3	Niemas Racecars	GFK	released Jan 2010	€ 90.00
Porsche 908-02	1	Völkl/VMC	GFK	40077b	€ 45.00
Porsche 917PA	1	Slotracing Werk	GFK

Art. 9: 1981 DRM GROUP 4/GROUP 5 CARS FOR THE LIQUI MOLLY RACES
9.1 CHASSIS
Chassis is free, but PlaFit SLP, MoMo X-W07-GT, Schoeler Striker and M-Racing C1 are recommended.
9.2. MOTOR
Only the totally unchanged and unopened handout and already broken in ProSlot Euro Competition motor is allowed. Motor has the same dimensions as the Fox10 and can be fit to the same motor holder as for the Fox10. Lead wire, braids, guide and guide nut are free.
9.3. GEAR & PINION
Gear and pinion are free but on MTT tracks gear ratio must always be 44:9.
9.4. FRONT WHEELS
Front wheels must be in height proportional with those on the real race car. Tread touching the track must be 5 mm wide.
9.5. REAR WHEELS
Rear wheels must be mounted on 3 mm axles. They are marked handout Scaleauto wheels at €11.60 per pair, as released by H&T Racing and CricCrac), 27.5mm high and 13mm or 16mm wide for Division II cars and 27.5mm high and 16mm or 18mm wide (at racer's discretion) for Division I cars (res. SC2421P, SC-2424P and SC-2423P) mounted on 21m rims.  Any racer receives before the start one pair of such tyres at cost price. Nobody can buy more than two marked pairs of tyres.
9.6. BODY
Body (in hard plastic, resin, GFK or laminated) must be a 1/24th or 1/25th true scale copy of one of the real race cars having been seen at the 1981 DRM (= Deutsche Rennsport Meisterschaft), never less than 42mm high (40mm for the Lancia Beta Montecarlo) and more than 90mm wide, equipped, with roll cage or roll bar, with a fire extinguisher, with a three-dimensional racer with full upper legs and one hand at the wheel, with a hard plastic head + helmet, with a driver's seat, and with wiper(s). Correct race numbers on the correct places are obligatory. BMW M1 Group 4 bodies come always from Revell plastic standard kits. Exhaust pipes with real flames are not obligatory but strongly advised.
9.7. CLASSES
There are two classes, the over 2-litre cars and the under 2-litre cars. There are separated standings in both classes.
9.8. WEIGHT & DIMENSIONS
Minimum weight for all cars is 165 gram RTR with a minimum of 55 gram for the body, incl. body mounts. Seen from above chassis, electro motor and tyres must be completely covered by the body. Original bodies may be made by no means wider.
9.9. GROUND CLEARANCE
Ground clearance starting the race is never under 1 mm.

¶ 7.  ADDITIONAL RULES

Art. 10: ON DEFICIENT GROUND CLEARANCE
Ground clearance starting the race is always 0.6 mm minimum for sprint cars, 1 mm for LMP1, LMP2, LMGT cars. It may never be lower than 0.4 mm. However if any part of a car drags the track, that car must make a pit stop to repair and can only rejoin the track after the race direction checked its clearance which, after repairs, must be again regular at  0.6mm or 1 mm minimum.

Art.11: BASIC RULES
(1) Should there be a controversy between texts published on the IMCA web site and the Rule book on the IMCA web, only the Rule book pages will be considered as binding.  All what was not clearly and explicitly allowed by the technical Rule book is forbidden.
(2) The use of illegal bodies is absolutely forbidden at all IMCA racing. At sprint races the used body must not only be legal, but also be licensed. Manufacturers of illegal bodies are NOT at their place in IMCA racing.
(3) Except for bolts, nuts, washers, spacers, and braids no other chassis parts than those in the IMCA's Exhaustive List with Homologated Parts may be used in sprint races. In those races replacement parts may never be changed in form, weight or dimensions. Moreover changing the bottom plate or cutting the original bottom plate is not allowed and results immediately in DISQUALIFICATION.
(4) In endurance races - except for nuts, bolts, washers, braids, lead wire and lightning - no other parts than the homologated ones are allowed, including the original bottom place..
(5) On homologated parts, other than complete chassis, absolutely nothing may be changed. Otherwise homologation has no sense at all. On homologated chassis only parts may be changed by others if the last ones are part of the list. Nothing on the bottom plate may be altered (no cut, no bore, etc.)

¶ 8. CONCOURSE WORLDS

Art. 12: THE CONCOURSE WORLD CHAMPIONSHIP
12.1. WHO CAN ENTER WHICH CAR?
(a) WHO CAN ENTER - Any modeller, irrespective if he/she can be present or not at the IMCA Nats  can enter a car at the annual Concourse World Championship.
(c) WHICH CAR - No modeller can enter more than ONE sprint car and ONE endurance car. The entered car needs to meet all technical prescriptions (cf. art 6 and art. 7), must be RTR, but is not necessary a car which will be raced at the IMCA Nats.  It may be the same car as from another racer.
12.2. VOTING SYSTEM IN TWO STAGES
(a) STAGE ONE: THE FIRST SELECTION - All cars are exposed on the track and one voter per nation can give res. 5, 3 or 1 point(s) to one of those cars, but never to a car having been assembled by a country mate. The 8 cars having reached the highest score are then presented to a jury of experts.
(b) STAGE TWO: THE CONCOURSE JURY - A specialised jury applies the IMCA objective concourse criterions and selects the winning car.

    MASS MANUFACTURED CHASSIS
Appendix  J: ON MASS MANUFACTURED CHASSIS
J.1. GENERAL DESCRIPTION
DEFINITION -  Beginning a new season IMCA's Technical Division publishes a list of all available chassis being considered as mass-manufactured. This list can be found here. The list will be published twice every year. Any chassis in this list is considered as a mass-manufactured chassis. Any other chassis NOT in this list can only be considered as "mass manufactured if all clauses in art. J.2 are respected. If this is the case the chassis will be added in the course of the year to the list, but NEVER LATER than 3 months before the start of (a) the IMCA Worlds or (b) of the European Endurance Championship.
J.2. CONDITIONS FOR HOMOLOGATION OF NEW CHASSIS
(a) REQUEST FOR HOMOLOGATION -  Any manufacturer and/or distributor is allowed to enter a demand for homologation of a not already homologated chassis. Request is done by e-mail to raymondvc@slotracingmerlijn.be. Without request for homologation no new chassis can be allowed in IMCA racing.
(b) ELEMENTARY CONDITIONS - The proposed chassis must (i) be adjustable in height, must (ii) have 6mm openings for front and rear axles, (iii) must provide all pieces except the guide, guide nut, axles, wheels, gear, and pinion, (iv) must be built in such way that the IMCA homologated motor can be fit to it exclusively by screws. If those elementary conditions are not respected homologation will be impossible.
(c) ADDITIONAL CONDITIONS - (i) The new chassis must be world wide commercially available via an e-commerce or be available via the most important distributors in Germany, the USA, Canada, Japan, South-Africa and Australia or New Zealand, (ii) must be available the three last months preceding the IMCA Nats or the first round of the IMCA European Championship at so many copies as there are entered cars with a minimum of 50, (iii) may never cost more than the double of the price of the chassis having won the last world championship.
J.3. HOMOLOGATION PROCEDURE
(a) HOMOLOGATION COMMISSION - Immediately after request for homologation the Commission must receive two copies of the new chassis to be sent to Freezslot p/a Willy Heerwegh,  Henri Werriestraat 15, B-1090 Brussels. The two chassis will be studied by the homologation commission, making a report upon it.
(b) HOMOLOGATION REPORT - In the homologation report the homologation commission has to stipulate the reasons why a new chassis is yes or not accepted for homologation. The homologation report must be sent by e-mail to the IMCA president.
(c) DEFINITIVE HOMOLOGATION - Only if the IMCA president accepts the homologation the new chassis will be added to the list of homologated cars. As long as the IMCA president did not approve the homologation the new chassis will not be accepted at IMCA racing, except for races where experimental chassis are allowed.
(d) DATE OF HOMOLOGATION - A new chassis is considered as homologated up from the moment it appears in the list of homologated cars.

First version by JPVR and Tamar Nelwan, June 6,  2006
Revisited by Tamar Nelwan on January 19, 2007; May 31, 2007; September 19, 2007;  and January 10, 2008 for FIA GT
Revisited on behalf of IMCA on October 1, 2007
Addition of the rules for classic cars by JPVR on November 30, 2007
Revisited art. 7 on April 12, 2008 after abolition of some of Tamar's tech rules
Revisited art. 7 on September 10, 2008 for ALMS cars by Raymond van Campenhout
Last revision on behalf of IMCA on September 10, 2008
Amendment of art 6A.3 on behalf of IMCA on December 2, 2008
Amendment of the complete art 6B.4 on March 2, 2009
Clarification of art. 11 on April 7, 2009 and May 4, 2009
Addition art. 6B on behalf of IMCA on June 2009
Art. 7 updated  on behalf of IMCA on June 2009
Art. 6A replaced by new Art. 6 on December 2009
Art. 8 modified on December 2009