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  Home > Specials > Regulations > Rule changes summary
Rule changes summary
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Calendar
2016 Number of rounds increased to 14China is added as an 14th round of the WRC despite strong resistance from teams. Rest of the rounds remain the same.
2015 CalendarAlsace is dropped and replaced with Corsica.
2014 CalendarAcropolis is dropped and replaced with Poland.
2013 Reduction in contested events requirementWRC teams are no longer required to contest full calendar as only one non-European event must be contested. At minimum, team must take part in seven events.
2012 CalendarMonte Carlo makes a return to WRC and replaces Jordan.
2010 CalendarCalendar is increased to 13 events (from 12 events) and with only Portugal, Finland, Catalunya and Great Britain carried over from 2009 season. Sweden, Mexico, Jordan, Turkey, New Zealand, Deutschland, Japan and Corsica all make comeback while Bulgaria enters as a new event.
2009 CalendarCalendar is truncated to 12 events (down from 15 events). This is accomplished by rotating Monte Carlo, Sweden, Mexico, Jordan, Turkey, Deutschland, New Zealand, Corsica and Japan out and bringing Ireland, Norway, Cyprus and Portugal back but also new events in Poland and Australia.
2008 New eventRally Jordan debuts as a new event and Turkey makes a comeback while new events for 2007 (Norway, Portugal and Ireland) are all dropped, making up a calendar of 15 events (one less than in previous year).
2007 New eventsCalendar for 2007 sees Cyprus, Turkey and Australia dropped while two new events, Norway and Ireland are included for the first time and Portugal makes a return.
2006 WaiverMitsubishi and Skoda are granted a waiver to skip a maximum of three events in 2006, two in Europe and one in overseas. They cannot both be absent from the same event. Neither uses this option and instead withdraw from WRC.
2005 Switch to winter calendarA proposal is made of switch from annual calendar to a winter calendar where season starts from autumn, runs through winter and ends at the fall of the next year. Proposal included a shorter transition calendar for first part of 2007. This proposal is left un-implemented.
2004 New eventsTwo new events, Japan and Mexico are added, bringing total number of World Rally Championship rallies to 16.
2000 Cyprus replaces ChinaChina, which had financial problems, is replaced by Cyprus.
1999 China replaces IndonesiaIndonesia, which was cancelled in 1998, is replaced by China.
1996 Indonesia makes debutAmidst the rotational calendar, new event at Indonesia is unveiled at full WRC level.
1994 Rotation introducedSweden, Australia and Catalunya were dropped from full WRC calendar and instead were run as F2-only events. This reduced number of full WRC events to ten, the lowest number since 1974-76.
1991 Catalunya introducedMixed-surface event in Catalunya, Spain is introduced to Championship for a first time.
1989 Australia replaces OlympusStruggling USA Olympus Rally is dropped in favour of Rally Australia.
 
FIA structure
2004 WRC CommissionThe World Rally Championship Commission has been restructured.
- Chairman of the WRC Commission, appointed by the FIA;
- Chairman of the Rally Commission, or a representative of the FIA President;
- three team representatives, the first and last in the previous year's WRC
(and also competing in the current year’s Championship), plus one member elected by
the teams;
- three organiser representatives, one from Europe and one outside,
plus one member elected by the organiser;
- representative of the Commercial Rights Holder (non-voting);
- representative of the FIA External Relations Department (non-voting).
A simple majority will be required to pass a proposal.
 
JWRC
2006 JWRC carsIn addition of S1600 cars, Junior WRC is now open to N3 and regular A6 kit cars as well.
2006 Junior calendarNumber of events is increased to nine but number of events drivers must nominate is dropped back to six.
2005 Junior calendarThe number of Championship events is increased to eight and the drivers must nominate seven (was six) rallies in the Championship in which they will participate.
2004 Control tyresChanged from Michelin to Pirelli.
2001 Super 1600 CupSuper 1600 Cup is formed. Cars are 1600cc FWD cars, cost of each is maximum of 100.000 USD and which have heavy technology cap, banning exotic materials and limiting sophisticated parts like gearboxes. Six events count towards Cup: Catalunya, Acropolis, Finland, San Remo, Corsica and Great Britain. Registration for Cup is mandatory and registered driver must start on all six events.
2001 MechanicsOriginally only three mechanics per car are allowed. Later number is increased to four.
 
Non-event activity
2016 WRC Team requirementWRC Team can now contest any number of events, there is no longer a minimum of seven nominated rallies for them.
2014 Manufacturer nomination requirementManufacturers will no longer be required to nominate one permanent driver for the season. Instead, manufacturers will be obliged to nominate one driver for a minimum of 10 Championship events.
2011 Priority status rule changedPriority 2 drivers who have contested more than two consecutive rounds will be awarded Priority 1 status for the remainder of the season. These drivers must then comply with the regulations pertaining to WRC Teams.
2004 Testing restrictionsFurther testing restrictions are issued as follows.
No testing can take place outside Europe at all (previously restricted to one pre-named non-European country). During August and November testing is prohibited.
These restrictions cover only registered teams (contesting full championship).
2003 Testing restrictionsNo testing is permitted in the country of a rally for any rallies run outside Europe.
2003 Testing restrictionsTesting in the country of a rally by a priority 1 crew is not permitted after the start of reconnaissance until the end of the rally.
 
PWRC
2007 S2000 cars admittedDrivers can now use Super 2000 cars to score points in PWRC.
2005 Production calendarThe number of Championship events is increased to eight and the drivers must nominate six rallies in the Championship in which they will participate.
 
S2000 Cup
2011 Eligible cars for S2000 WRCCars eligible to contest the Super 2000 World Rally Championship must have a normally aspirated engine with a cylinder capacity of less than 2000cc.
2010 Super 2000 CupNew cup is formed, officially named as FIA World Rally Championship Cup (for S2000 teams). It's similar to PWRC and JWRC championships - teams can count seven out of ten selected rounds towards their championship score and must start twice outside Europe.
 
Safety
2004 Safety GroupA Rally Safety Research Group has been established to address four principal areas
concerning rally car occupant safety, as follows:
- crew in-car location and retention;
- roll protection and energy absorption;
- accident data recording;
- driver/co-driver heat stress.
 
Sporting
2017 Manufacturer entriesManufacturer may enter two or three cars (was two) for the purpose of scoring points in the Manufacturer’s Championship but only two best will score championship points.
2017 Drivers eligible to drive 2017 WRCarsOnly drivers entered by manufacturers are eligible to drive 2017 World Rally Cars, with the approval of the FIA.
2017 Driver nominationTo provide the opportunity for more drivers to be nominated, from 2017 manufacturer will not be required to nominate the first driver in its team. Nominations will however still be required by the closing date of entries for each event.
2017 Start orderReversed start order is abandoned and for first day, all cars start according to the actual Championship classification. For subsequent days, P1 drivers start in the reverse order of the rally classification while all other drivers start in the order of the rally classification. Restarting P1 crews start at the end of the P1 group.
2017 Points for power stageChampionship points for power stage is changed to:
1st - 5 points
2nd - 4 points
3rd - 3 points
4th - 2 points
5th - 1 point
2017 Championship pointsShould one of the rallies be unable to run in its entirety, Championship points will be awarded in accordance with the percentage of the scheduled length of special stages run as follows:
-full points if 75% or more
-half points if between 50-75%
-one third points if between 25-50%
-no points if less than 25%.
2016 Championship pointsShould one of the rallies be unable to run in its entirety, Championship points will be awarded in accordance with the percentage of the scheduled length of special stages run as follows:
-full points if more than 50%
-half points if between 25-50%
-no points if less than 25%.
Note: This rule was repealed in 2009 and is now reinstated.
2016 Power stage lengthThere is no longer a requirement for the Power Stage to be between 10 and 15 kilometres in length.
2016 Start orderP1 priority crews that have retired and re-start under Rally 2 regulations will no longer run ahead of regular crews, instead they will start at the back of the P1 group. This means that for the first two days the championship leader will always be first on the road.
2015 Start orderStart order is changed so that crews will start in Championship order not only the first but also the second day and reversed classification order is used only in the final day. Retired crews will still start first, before other crews.
2015 Penalty for missing stagesIn order to give more of an advantage to crews contesting all the stages, a seven-minute penalty, instead of five minutes, will be applied per stage missed by the retired crews. The 10-minute penalty for missing the last stage of a day remains applicable.
2015 Splits bannedSending split time data to crews in the rally car during special stage is banned. Splits for spectators are still available.
2015 Time limit for stage startA car which has not started from the special stage start line within 20 seconds (of the allotted start time) will be considered as retired.
2014 Start orderQualifying is scrapped and starting order is reversed back to system used from 2002 to 2007. On first day, starting order is per championship order. On subsequent days, starting order is reversed rally classification. This rule applies to Priority 1 and 2 drivers.
2014 Rally formatRallies return to a fixed format after few years of freedom and variance. There will be a ceremonial start on Thursday, with the last stage run on Sunday at approximately 12:00 hrs for European events. The final stage is defined as the Power Stage, the length of which will be set at a minimum of 10 kilometres.
2014 Category recognition stickerAll competitors registered in the Championships – WRC, WRC 2, WRC 3 and Junior WRC - will be obliged to use a colour-coded windscreen sticker to identify the category in which they are competing.
2014 Stage distance ratioAs a general rule, organisers of WRC events must ensure a minimum of 25% competitive special stage distance in relation to the overall distance of the event.
2013 Championship structureSuper 2000 Championship will be renamed as WRC-2 Championship. Championship is open to four-wheel driven cars in R4, R5 and S2000 classes.

Production Car Championship will be renamed as WRC-3 Championship. Championship is open to two-wheel driven cars in R3, R2 and R1 classes.

WRC Academy will be renamed as FIA Junior WRC Championship.
2012 Start orderOn gravel rallies, shakedown will be used as a qualifying stage to determine the start order. Officially, this is known as "Free Practice and Qualifying Stage". Each cew is allowed two practice runs over two hours before qualifying begins. Each driver then starts the qualifying run in championship order and with two minute interval, just like ordinary special stages. Taking into account the qualifying times, crews will be permitted to select their start positions in order of fastest to slowest. In subsequent day crews will restart in reverse order. This rule only applies to Priority 1 and 2 drivers.
2012 Optional super-rallyInstead of being standard rule for all events, each event will now be allowed to specify whether cars are permitted to re-start after retirement (so-called super-rally rule).
2012 TimingFor the Qualifying Stage and the Power Stage, timing will be to a thousandth of a second (was: tenth of a second).
2012 Manufacturer registrationIn the first Championship year of homologation, a new manufacturer may register as a WRC Team and score Manufacturers’ points on a maximum of seven nominated rallies.
2012 Priority status rule changedPriority 1 drivers are those in World Rally Cars who have been nominated by a registered Manufacturer or WRC Team for the purpose of scoring points for the FIA World Rally Championship for Manufacturers, or have been entered by a Manufacturer or WRC Team but not for scoring points in the Manufacturers’ Championship (new ruling). A driver may also be awarded P1 status if they have been classified among the first 10 in a World Championship rally during one of the two previous Championship years or during the current Championship year (unchanged ruling).
2012 Drivers license requiredThroughout the rally, both crew members must have a valid driving licence.
2011 Eligible carsCars eligible to score points in the Manufacturers' Championship will no longer include the the World Rally Cars using the original WRCar formula, only future World Rally Cars based on S2000-cars.
2011 Control tyre rule abolishedSingle tyre supplier rule, the so-called control tyre is abolished, allowing any tyre manufacturer to supply tyres for the competitors.
2011 TV-stage and bonus pointsEach event must include one special stage on the final day and the three fastest drivers on this stage called as Power Stage will be awarded additional points in scale of 3-2-1.
2010 Championship pointsPoints scoring changed to:
1st = 25 pts
2nd = 18 pts
3rd = 15 pts
4th = 12 pts
5th = 10 pts
6th = 8 pts
7th = 6 pts
8th = 4 pts
9th = 2 pts
10th = 1 pt
2010 Eligible carsCars eligible to score points in the Manufacturers' Championship will include the present (the original WRCar formula) and future World Rally Cars (S2000-based WRCars), and Super 2000 cars.
2010 Rally length increaseThe total length of the special stages is increased to maximum of 500 km (was 400 kilometers). Also, minimum and maximum limitations for individual stages are dropped, instead a limit of maximum of 80 kilometers of stages between service halts is introduced.
2010 Night stages allowedSubject to satisfactory levels of safety, night stages are permitted but must not form the whole itinerary of the day. Previously, night stages were permitted only if special dispensation was granted by FIA.
2010 Maximum latenessThe maximum lateness between two time controls has been extended from 15 to 30 minutes. However the lateness for the day remains at 30 minutes.
2010 Co-driver namesThe name of the co-driver is again permitted to be included on the rear side windows of cars. Became effective from 2010 Bulgaria onwards.
2009 Mixed surfacesFIA re-allows use of mixed surfaces in rallies, banned since 1996. This allowance is permitted on condition that a surface will be used on two consecutive days (ie. middle day must have same surface as either the first or the last day).
2009 Rally length increaseThe total length of the special stages is increased to maximum of 400 km (was 360 kilometers).
2009 Full points alwaysFIA gives up the rule 21.3 (in 2008 regulations) which said that only half championship points were awarded if only between 25 and 50 percent of the rally length was run and no points at all if fewer than 25% of the rally length was run. Repealing this rule mean that full points is always awarded regardless of how much of the rally is run.
2009 Number of mechanicsThe maximum number of mechanics per team permitted to work on the cars in the main service park is now eight (formerly 12). In the remote service zones, four mechanics are permitted to work on each car.
2009 World ranking for driversA world ranking for rally drivers will be trialled. Established weekly by the FIA, it will be based on the results achieved in all FIA Rally Championship events and FIA authorised Trophies, Challenges and Cups.
2008 Start orderThe reversed top-15 system for determining the running order is abandoned and is switched back to old system based on event classification (or championship classification for first leg).
2008 Final serviceItinerary of the events shall include a ten minute final service between the final stage and the podium finish. This is meant to encourage Service Park to remain as an spectator attraction until the very finish.
2008 Super-rally restrictedCrews are no longer allowed to re-join the rally if they retire on final day.
2007 Remote servicing allowedRemote servicing, under restricted conditions, is again permitted.
2007 Road-legalityA small but important clarification is presented: during liaison (ie. road) sections, competing car must have all of it's four wheels intact. No more three-wheeling on public roads.
2006 Manufacturer championshipManufacturers' Championship undergoes significant change of principle. The term "manufacturer" is no longer used to refer only to actual manufacturers or teams officially designated by a such manufacturer, but also to teams taking part with a single make of car, official or privateer.

In a related move, competing teams (or manufacturers) are divided into two categories, Manufacturer 1 and Manufacturer 2 as follows:

Manufacturer 1
- A Manufacturer 1 undertakes to take part in all the rallies of the Championship
- A Manufacturer 1 must enter only cars corresponding to the latest homologated version of a World Rally Car in conformity with the 2006 Appendix J
- A Manufacturer 1 must inform the FIA of the name of the first driver entered for the season at the time of registration for the Championship. No change of the first driver is authorised, except in a case of force majeure. The driver of the second car may be changed for each of the rallies in the Championship
- In order to score points in the Championship, a Manufacturer 1 must take part with two cars of the same make in the 16 rallies of the calendar

Manufacturer 2
- A Manufacturer 2 undertakes to take part in 10 or more Championship rallies which it has nominated
- A Manufacturer 2 cannot enter World Rally Cars homologated during the year 2006 and cannot use parts homologated after 2 January 2006
- A Manufacturer 2 cannot enter a driver who has been classified among the first six in the final classification of the FIA World Rally Championship for Drivers in the last five years
- In order to score points in the Championship, a Manufacturer 2 must take part with two cars of the same make in 10 or more rallies it nominated on registering for the Championship. The Manufacturer can only score points in the events it nominated on registering
2006 J/PWRC championship registrationBoth in Junior and Production WRC, the registration for the Championship may now be in the name of a driver, in the name of a team, or in the name of an ASN designated team. Points are still scored in the name of the driver, ie. if team uses more than one driver during the season, each score only for him/herself.
2005 Rally length reductionThe total length of the special stages is reduced to maximum of 360 km (was 400 kilometers).
2005 Super-rallyAny crew which has retired may re-start from the start of the next leg. The crew will get a five minute penalty added to the fastest time of the drivers' priority group for each missed stage.
2005 HANS use requiredAll crews in official manufacturer-entered cars will have to use the HANS (Head And Neck Support) system.
2005 Gravel crews reinstatedOn tarmac rallies, gravel crews (called as safety crews) are again allowed. One such crew for each Priority 1 and Priority 2 competitors may make one pass of each stage.
2004 Recce rulesThe "Mille Pistes" concept adapted, changing from two pre-event recce runs to one and another run done on morning of each leg. Also, recce can now be carried out with rally cars as well as with standard recce cars. If standard cars are used, those must be registered to country hosting the rally (teams cannot ferry their own recce cars to events any longer).
2004 Team structureChange back to two-car teams in manufacturer championship scoring.
2004 Gravel crews bannedUse of gravel crews was banned on all other events except Monte Carlo.
2004 ServicingFlexi-service adopted. Instead of servicing all of teams' cars simultaneously, in flexi-service concept cars are serviced one at a time, reducing the need of service crew.
2004 Supe-rally experimentA trial of a new system to allow cars which have retired in a leg to re-start in a subsequent leg, but without scoring points and without being classified in the event, will begin with the Acropolis Rally.
2003 Championship pointsPoints scoring changed to:
1st = 10 pts
2nd = 8 pts
3rd = 6 pts
4th = 5 pts
5th = 4 pts
6th = 3 pts
7th = 2 pts
8th = 1 pt
2002 EntriesNo more than 90 crews may be accepted to entry list of each event. This number is to be broken down into 30 championship crews with World Rally Cars, 5 invited drivers, 30 JWRC or PWRC cars and rest at the discretion of the organiser.
2002 Start orderIn Leg 1, first 15 crews will start in championship order. In subsequent legs, these top 15 crews will start in reverse order.
2002 ShakedownShakedown is moved from Wednesday to Thursday morning.
2000 Safari recceWaiver to use rally cars in recce of Safari Rally ends. Instead, drivers have to use regular production cars, usually some sort of jeeps.
1999 Manufacturer pointsOnly nominated cars of registered manufacturers score points. Non-scoring cars (of unregistered manufacturers, non-nominated manufacturer cars or privateers) no longer block points, rather points are distributed between nominated cars of registered manufacturers as if they were only finishers. Scoring in drivers' championship is not changed.
1999 TV stageFor TV stage special rules applied. Manufacturer entered crews that had retired prior the TV stage were able to rejoin the rally for that one stage. Three fastest on that single stage scored 3-2-1 points respectively. TV stage was to be the final stage of the rally and it was run in Corsica and Finland before idea was scrapped.
1999 Start orderIn Rally Australia, new running order system is tried out. Instead of running in championship or end-of-leg order, drivers instead pick their road position for the next leg. Order in which choice is made is championship or end-of-leg order.
1998 TimingStages are timed to tenth of a second (previously only to full seconds).
1997 Championship pointsPoints scoring changed to (identical with F1 points):
1st = 10 pts
2nd = 6 pts
3rd = 4 pts
4th = 3 pts
5th = 2 pts
6th = 1 pt
1997 Safari servicingPrinciple of servicing allowed only in service parks extended to include Safari Rally. Teams were no longer able to drop mechanics and spare parts from helicopters.
1996 Rally durationEvents can last only maximum of three days of competitive driving, spectator super special stages being exception.
1995 Championship scoringPoints scoring scale in manufacturers championship changes slightly though composite of overall position and group position is retained, points from both categories are added to get total tally. Two best placed cars of each manufacturer scored. Additionally, only cars finishing in top-15 positions overall scored (even if within top-10 in the group).

Overall position scoring:
1st = 25 pts
2nd = 20 pts
3rd = 17 pts
4th = 14 pts
5th = 12 pts
6th = 10 pts
7th = 9 pts
8th = 8 pts
9th = 7 pts
10th = 6 pts
11th = 5 pts
12th = 4 pts
13th = 3 pts
14th = 2 pts
15th = 1 pt


Group position scoring:
1st = 10 pts
2nd = 9 pts
3rd = 8 pts
4th = 7 pts
5th = 6 pts
6th = 5 pts
7th = 4 pts
8th = 3 pts
9th = 2 pts
10th = 1 pt
1993 Championship registrationObligatory registration to WRC series is re-introduced. Teams had to nominate drivers 30 days before each event and only nominated drivers were eligible to score points for the team.
1993 Championship eventsFor 1993, all rounds of the championship counted towards both drivers' and makes' championships for the first time.
1986 Group A championshipNew championship was created for drivers of Group A cars. For points scoring in this new championship refer to championship points section of 1986.
1986 Championship scoringPoints scoring scale in manufacturers championship changes slightly though composite of overall position and group position is retained, points from both categories are added to get total tally. Only best placed car of each manufacturer scored even if a car in lower position would have gained more points. Additionally, only cars finishing in top-10 positions overall scored (even if within top-8 in the group).

Overall position scoring:
1st = 12 pts
2nd = 10 pts
3rd = 8 pts
4th = 7 pts
5th = 6 pts
6th = 5 pts
7th = 4 pts
8th = 3 pts
9th = 2 pts
10th = 1 pt


Group position scoring:
1st = 8 pts
2nd = 7 pts
3rd = 6 pts
4th = 5 pts
5th = 4 pts
6th = 3 pts
7th = 2 pts
8th = 1 pt


Points scoring for new Group A championship was based on overall position in Group A:
1st = 8 pts
2nd = 7 pts
3rd = 6 pts
4th = 5 pts
5th = 4 pts
6th = 3 pts
7th = 2 pts
8th = 1 pt


In addition, points were awarded according to overall position in a category of which there were three (up to 1300cc, 1300-2000cc and over 2000cc):
1st = 10 pts
2nd = 8 pts
3rd = 6 pts
4th = 5 pts
5th = 4 pts
6th = 3 pts
7th = 2 pts
8th = 1 pt
1986 Championship registrationIn order to be eligible to score points in Manufacturers championship, team was required to register at the beginning of the season. Team also had to register their qualifying drivers beforehand and only points from registered drivers were added to total for that team.
1986 Rally and stage lengthsAfter Corsica, stage length cannot exceed 30 kilometers. Also rally duration was recommended to be reduced.
1984 Eligible carsOnly cars homologated in groups B, A or N were eligible in WRC events.
1983 Championship pointsOnly drivers using new Group A, B or N cars were eligible to score championship points.
1979 Drivers championshipChampionship title for drivers is introduced and points scoring is different from that of the makes, points being given out to top-10 finishers as follows:

1st = 20 pts
2nd = 15 pts
3rd = 12 pts
4th = 10 pts
5th = 8 pts
6th = 6 pts
7th = 4 pts
8th = 3 pts
9th = 2 pts
10th = 1 pt
1977 Championship pointsScoring is changed to composite of overall position and group position, points from both categories are added to get total tally. Only best placed car of each manufacturer scored even if a car in lower position would have gained more points. Additionally, only cars finishing in top-10 positions overall scored (even if within top-8 in the group).

Overall position scoring:
1st = 10 pts
2nd = 9 pts
3rd = 8 pts
4th = 7 pts
5th = 6 pts
6th = 5 pts
7th = 4 pts
8th = 3 pts
9th = 2 pts
10th = 1 pt


Group position scoring:
1st = 8 pts
2nd = 7 pts
3rd = 6 pts
4th = 5 pts
5th = 4 pts
6th = 3 pts
7th = 2 pts
8th = 1 pt
1973 Championship pointsOriginal scoring scheme was:
1st = 20 pts
2nd = 15 pts
3rd = 12 pts
4th = 10 pts
5th = 8 pts
6th = 6 pts
7th = 4 pts
8th = 3 pts
9th = 2 pts
10th = 1 pt

Only best placed car of each manufacturer scored.
 
Technical
2017 Turbo restrictorDiameter of turbo restrictor is increased to 36 mm (was 33mm).
2017 Minimum weightThe minimum weight of the car is reduced (by 25 kilograms) to 1175 kg (was 1200 kg).
2017 Body shell dimensionsWRCar maximum width increases by 55 mm to 1875 mm (was 1820 mm).
2014 Classes renamedCar classes are renamed, A0 becames RC1 and so on.
2014 Homologation changesIn order to extend the life of World Rally Cars, manufacturers will be permitted to re-homologate 2011, 2012 and 2013 cars without any modification, except one single chassis and engine joker for 2014. In order to facilitate the replacement of S2000 Rally cars with Group R5, S2000 regulations will not be continued after 2013 and will be replaced by new R5 homologation regulations.
2011 The S2000-based WRCarFor the 2011 and 2012 Championships, the World Rally Car will be based on Super 2000 with the addition of a specified kit restricted to modifications to the bodywork, being removable aerodynamic devices. The car will be subject to specific technical regulations intended to control costs through restrictions on the changing of engines, transmissions and similar components. The maximum 8,500rpm for the engine will be maintained for all World Rally Championship and S2000 cars.
2011 1.6 liter turbo engineNew homologation regulations permit the use of a 1.6 litre turbo engine with direct injection (based on the existing Super 2000 regulations). This engine may either be derived from the Manufacturer's base engine, or be homologated in accordance with the strictly defined technical regulations.
2011 Turbo restrictorIn line with new 1600cc WRC engine regulations, the diameter of mandatory turbo restrictor is reduced to 33mm (was 34mm).
2010 New World Rally CarsThe new technical regulations for the future World Rally Car will become effective from 2011. The WRC Car will be based on the current Super 2000 and Group N cars, fitted with a supplementary kit, which includes turbo and rear-wing additions. The kit must be able to be fitted or removed within a defined time limit, to be determined.

The current World Rally Car regulations will be extended to include the 2010 World Rally Championship, subject to technical controls. The new World Rally Car will be permitted to compete from 2009 and score points in the Championship from 2010.
2008 Control tyre introducedControl tyre is introduced to all 4WD rally cars (previously used only in JWRC) and tender for seasons 2008-2010 was won by Pirelli.
2008 Mousse bannedAt the same time with introduction of the control tyre, filling tyres with anything other than air is forbidden.
2008 Cutting of the tyresCutting the tyres, a practice to help coping with varying conditions, is limited only to tarmac rallies and only along pre-set guidelines of cutting the patterns.
2008 Technical restictions easedThe restriction on parts will be eased for new manufacturers in their first year of entering the Championship. A new manufacturer may ask the FIA for a waiver to use two additional engines without penalty, and a change of parts, as described in the Sporting Regulations.
2006 Engine and chassis pairingIn order to limit costs by increasing lifespan of parts and components, FIA decreed that some rallies were "paired" so that teams were oblidged to use same components in both events of the pair. In the first of the paired events, parts in question were sealed and seals were checked at the of the second paired rally.

Paired rallies for 2006 were (engines, chassis):
-- Monte Carlo & Sweden
-- Mexico & Argentina
-- Spain & France
-- Italy & Greece
-- Germany & Finland
-- Japan & Great Britain
-- Cyprus & Turkey
-- Australia & New Zealand

These pairings applied to Manufacturer 1 teams only, for Manufacturer 2 pairing was for two consecutive rallies that the team entered.
2005 Maximum widthFor World Rally Cars with overall length of 4200mm or more, maximum allowed width is increased from 1770mm to 1800mm.
2004 Tyre restrictionsStarting from Mexico, each works driver are limited to only "ten times the number of tyre change opportunities" of tyres. For example, if there are six tyre changes, driver can have up to 60 tyres available for durationg of whole rally, including weather dependent special treads. Each tyre is identified by a bar-code and selected tyres have to be submitted to the FIA weeks before the event.
2003 Fuel tankMaximum fuel tank capacity is 95 liters.
2002 Door mirrorsMirrors on doors/wings must be external (Mitsubishi and Citroen had experimentally mirrors fitted inside of the door).
2000 Minimum weightMinimum weight for A7 cars is increased from 960 to 1000 kg.
1997 World Rally CarAlternative way to prepare and homologate Group A rally car is introduced. Manufacturer no longer need to produce road-going 4WD turbocharged car in order to homologate A8-car, turbo and 4WD system can be added to any model produced in sufficient quantities.
1995 Turbo restrictorDiameter of mandatory turbo restrictor is reduced to 34mm (was 38mm).
1993 Minimum production requirementFrom 1st of January 1993 onwards, minimum production requirement for a car to be eligible for homologation was decreased from 5,000 units to 2,500 units.
1992 Turbo restrictorDiameter of mandatory turbo restrictor is reduced to 38mm for Group A and 36mm for Group N (was 40mm).
1990 Turbo restrictor40mm turbocharger restrictor is made compulsory, the first concrete step to enforce the nominal 300hp power limit introduced in 1986 in response to fatal accidents.
1988 Turbo equivalent factorMultiplication factor for forced induction engines is increased from 1.4 to 1.7.
1987 Groups B and S bannedFollowing the tragedies of 1986, Group B and upcoming Group S are banned from 1st Jan 1987, except for some less powerful cars.
1986 Group B evolutionsAfter Corsica, no new Group B evolution homologations could take place.
1986 Skirts are bannedAfter Corsica skirts (any aerodynamic devices under the car) are banned.
1986 Automatic fire extinguishersAfter Corsica, Group B rally cars were required to have automatic fire extinguisher systems installed.
1982 Homologation groupsAppendix J of FISA technical rules changes, replacing homologation groups 1 to 5 with new alphabetic groups A, B and N.

Old groups were allowed for transition period of one year, to disappear by start of 1983 season.
1976 16-valve cylinder headsSpecial modification rules are tightened so that fitting 16-valve cylinder head on an engine that normally had only eight valves was no longer allowed.

Note that even though the rule was introduced for 1976, there was a transition period of two years so that from 1978 onwards no car could have more than two valves per cylinder.
1973 Turbo co-efficientCars with forced induction (turbo- or super-charger) have their nominal cubic capacity multiplied with co-efficient 1.4 to arrive total capacity, used to determine minimum weight.
 
Terminology
2008 Leg becomes DayIn FIA's own words, "To aid public understanding, the term Leg will be replaced by Day".
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