Engineering Sketch


The NASA website NASA Rules & Regulations documents

are until further notice a substitute for the previous NASA Rules and Regulations booklets.

The rules in the website NASA Rules & Regulations documents will apply.

Competitors will be required to obtain a NASA Members Handbook and NASA Competition

License prior to taking part in Autograss racing.

Please visit our dedicated tagging page by  Clicking Here.




The 2020 Rulebooks have now been released and are available on the technical page

of our website. This coincides with the new format which has a General rulebook for

Saloons and Specials which will go alongside the class rulebooks. Class One has also been split up

into vehicle types.



Tyres are restricted.

For drive axles and / or drive wheels control tyres will apply. 

The application of control tyres will remain effective until 31 December 2021, however NASA reserve

the right to modify the tyre regulations without notice at anytime. All tyres used on drive wheels after July

1st 2019 will have to be tested and agreed by NASA prior to use, approved tyres will be listed under option

A or option B on the NASA permitted tyre list. Prior to July 1st 2019 competitors may use any existing

stock of tyres as long as they meet the 2018 tyre regulations.


There will be 3 options, A, B and wet weather, competitors may use tyres that comply with either option on a drive axle, mixing and matching of option A and option B and / or wet weather tyres on the same axle is permitted.

All tyre identification markings must be present and visible on each of the tyre side walls. ( removal of identification markings is not permitted). The shore hardness value must be marked on all option A tyres, this marking must be clearly visible, non removable and applied during the tyre manufacturing process. (sticky labels or branding iron markings are not permitted ). Tyres that are not marked with the shore hardness value during manufacturing will be deemed as option B tyres and must comply with option B regulations.

The tread block / pattern / profile must be pre formed, made during the manufacturing process ( alteration or modification to original manufacturers tread pattern by tyre cutting is not allowed ). All tyres wether control tyres or other must have a speed rating of a minimum of 75 mph ( L speed symbol ). M and S tyres are permitted subject to drive and non drive axles and control tyre restrictions. Motorcycle tyres are prohibited.

Tyre hardness is restricted and must comply with the following. Random checks of hardness will be carried out by means of a durometer, the checks will be made by authorised NASA officials and tyres may be checked at anytime. Tyre manufacturers may incorporate a test block into the tyre tread pattern during the manufacturing process, otherwise readings will be taken from the most suitable tread block available. For non control tyres ( non drive wheels ) the shore hardness is free.

Control tyres option A and option B must have a minimum shore hardness of 60 when the tyre is new or in new condition, when tyres are tested in any other circumstances there will be a minimum of 55 to allow for tyre condition and temperature etc. No tyre should ever measure under 55 shore hardness, if an option A or option B tyre is measured under the minimum limit the driver will face disciplinary action.

Option A tyres must be of a type supplied by a manufacturer / supplier as shown on the NASA permitted list of suppliers only ( supplier list currently being updated ) the tyre tread pattern must be of a type permitted by NASA and subject to random testing as described.

Option B tyres must be an E marked car road going new or remould tyre that are permitted in law for road use only, the tyres must be available from any regular uk tyre distributor and must have a shore hardness rating of a minimum of 60 shore. The cost of the tyre must be such that it has or has had an initial sales value inclusive of vat of less than £50, NASA will maintain a register of approved option B tyre makes / patterns, tyres not on the register are prohibited.

It is the responsibility of the competitor to ensure that his / her option A or option B tyres comply

with the NASA minimum shore hardness requirements.

When a tyre is inspected and is not to the satisfaction of the authorised NASA official then it is deemed as being in contravention of the NASA vehicle construction rules and will not be eligible for use. It is the competitors responsibility to contact a Scrutineer or authorised NASA official to confirm that tyres are eligible before use. Tyre tread patterns must be only as permitted by NASA, tyre tread patterns will be subject to regular review by NASA to ensure suitability for Autograss racing, NASA reserves the right to amend the permitted tyre tread pattern requirements at any time. Tyre width is restricted, the maximum allowed tyre width is 225.

Wet weather tyres are restricted and must be listed by NASA for wet weather use only. Wet weather tyres permitted will be listed separately by NASA and are exempt from shore hardness control, wet weather tyres can be fitted to any axle / wheel. Wet weather tyres are subject to NASA eligibility rules.

Tyres may be fitted with inner tubes, the placing of liquid into a tyre or inner tube is prohibited. The use of tyre softener is prohibited.

NASA will invite tyre suppliers to a tyre meeting during each season to discuss the next year and any concerns.


Scrutineering update Class 2
The following car will be added to the class 2 permitted vehicle list, it will have its own set of rules and they will be available by request prior to the release in a few weeks.

Toyota Yaris 1299cc VVTI 16v (2sz-fe) engine, 3 or 5 door bodyshells manufactured after 1st January 1999 and before 1st January 2006

Online rules will be updated in the next few weeks.


The following changes have been made to the class 4 rules for 2019.

Engine cc limit 1130cc, with the exception of leyland/Rover mini/A series engines where the cc limit will be raised to 1340cc


The original gearbox/transmission casing may be retained or replaced with any recognised automobile manufacturers standard production unit.

NASA are also looking for members who are willing to trial a Citroen/Peugeot using a 1360 engine with restrictions, on an experimental basis for 2019.

OnLine rules will be updated in the next few weeks


Following the October meeting, NASA scrutineers hoped to announce changes to class 2 suspension, there have been lots of discussions on the subject over the last 6 months with the main purpose for any change being, to reduce cost to the competitors.

Going into the October meeting a rule had been decided, it faced some criticism from scrutineers present, amendments were made at that meeting and the final format has been considered, due to the short time between now and the 2018 season the rule change will not be implemented until January 2019, conformation of the final rule will be issued during early 2018.

Anyone with anything to say on this or any other subject, especially if they have constructive ideas, should do so through the correct channels, club or league Scrutineers, club or league meetings or email NASA scrutineers direct, email addresses can be found on the NASA website.

Vernon Mackenzie


During the 2017 season The scrutineering team will be working to bring you some new rule books, they will be steered more towards the individual classes, they will be easier to understand and we hope to do away with any grey areas there may have been in previous publications.

In 2017 we will work to the 2015 rule book along with any updates that have been agreed since then, there will be a simplified list below as a reminder to competitors, the rules will take immediate effect unless stated otherwise.

If there is anything that isn't clear then please. Contact your club or league scrutineers to make sure.

Please also remember that no car will be allowed to race without a blue roll cage tag in 2017.


Click Here to view full update.


Following recent investigations, NASA wish to reiterate the rulings on the use of a Mini Pick Up. For more information, please see the Pick Up Guide from Vernon Mackenzie.

Click Here to view the Pick Up Guide measurements.