The World Motor Sport Council (WMSC) has confirmed all regulation changes for the 2014 season.

Meeting on Friday it was confirmed in-season testing would return for 2014 with four two-day tests taking place on the Tuesday and Wednesday after four races. 

They will replace the straight-line testing, young driver test and eight promotional days currently allowed by the regulations. 

The four venues are expected to be Spain (Circuit de Catalunya), Britain (Silverstone), Hungary (Hungaroring) and Italy (Monza). An additional pre-season test is to be added taking place in January to allow extra testing of the new engines.

Gearboxes are to last five races next year as oppose to the current four, while teams will be limited to100kg of fuel per car, per race which will be measured by a verified fuel flow rate. Engines will also have to last for five races. 

The 'stepped' noses are to be banned from 2014 while the era of the blown diffuser will also end as exhausts will now have to come up out of the bodywork.

Mercedes have been allowed to supply four teams next year with Williams joining McLaren, Force India and the works team. 

Drivers will be given an additional set of tyres for the first 30 minutes of Friday morning practice in a bid to increase the amount of running. 

Finally a new penalty points system will be introduced with points put onto the driver's superlicenses for various offences. 

Causing a dangerous collision is expected to put three points onto a license with more dangerous incidents earning as many as five. Should a driver gain 12 or more in under 12 months, they will be banned for one race. 

This move replaces the current reprimand rule where three reprimands automatically result in a 10-place grid drop for the driver.

The rules regarding a driver giving back any position or advantage gained by short-cutting a corner is also to be tightened up, this will allow situations similar to that between Fernando Alonso and Sergio Perez in Monaco to be dealt with more consistently.

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