Rulebook Revision 2 (last updated on May 21, 2013):
Changelog (changes will be highlighted yellow in the rulebook and in bold letters here):
- Added Rule D.3 -Any drivers that have confirmed their attendance and then do not turn up for the main event will receive a 30-point penalty for the first offence and will be excluded from the remainder of the season after the second offence.
- Added Rule M.1.2 - Members of the race administration are also allowed to file protests if they feel that an incident has to be investigated. However, they must do so within one hour of the race finishing, or their protests will no longer be accepted.
- Added Rule N.4 - Should two drive-through penalties be issued to a driver in very close succession, the driver will then receive a stop-go penalty instead of two drive-through penalties.
- Added Rule Q.5 - If a mass timeout has occured the drivers who lost connection are encouraged to rejoin the server to await further instructions from the race administration. Should the server be permanently offline, the race administration will give their orders through the race discussion thread in the series' forum.
- Added Rule T.4 -Should the option to kick or ban other players be enabled on the event servers, whether it be because the server is unpassworded for practice between events or for any other reason, no competitor will be allowed to ban another series participant from the server, no matter what the reason might be. Instead, it should be reported to a member of the series administration, so he can deal with the situation at hand.
- Added Rule S.2.2 - The use of a manual axis clutch (clutch pedal) is allowed as long as it is being used in combination with a manual shifter.
- Modified Rule C.2 -The available car numbers range from 02 to 99. Car number 01 is reserved for the reigning driver's champion. Should there be too few numbers, the administration will assign further numbers to the range of available numbers for new sign-ups.
- Modified Rule F.2.1 - The official name format for all drivers is: 000 F. Lastname
- Modified Range of penalties that can be given after a qualifying or race session.
- Rule F.2.1.a is F.2.2 now, Rule F.2.2 is F.2.3 now.
- Rule N.4 is N.5 now, Rule N.5 is N.6 now.
Rulebook link in the OP has been updated.