The FIA has confirmed several key rule changes for 2011 and beyond including the lifting of the ban on team orders during the final meeting of the World Motor Sport Council (WMSC) in Monaco.

Team orders were originally banned following Ferrari's manipulation of the 2002 Austrian Grand Prix but the issue again reared its head in this year's German Grand Prix when Ferrari ordered Felipe Massa to surrender the lead to team-mate Fernando Alonso, sparking furious debate.

"The article forbidding team orders (39.1) is deleted. Teams will be reminded that any actions liable to bring the sport into disrepute are dealt with under Article 151c of the International Sporting Code and any other relevant provisions," read the FIA statement.

Along with a return to team orders, the FIA also rubber-stamped the introduction of adjustable rear wings for overtaking and the return of energy-recovery KERS systems.

The rear wings will be 'switched on' when a car is within a second of his adversary and then triggered by the driver.

Also agreed upon was "a better definition of the reference plane, and reinforcement of bodywork deflection tests, especially at the front of the reference plane" to avoid any repeat of the controversy surrounding the flexibility of Red Bull Racing and Ferrari's front wings.

Looking further afield, the radical new 1.6 litre, four-cylinder engine for 2013, featuring fuel restrictions and the doubling of KERS power was ratified.

"Following dialogue with the engine manufacturers and experts in this field, the power units will be four cylinders, 1.6 litre with high pressure gasoline injection up to 500 bar with a maximum of 12,000 rpm. The engines will deliver a 35% reduction in fuel consumption and will feature extensive energy management and energy recovery systems, while maintaining current levels of performance. In 2013, five engines will be permitted per driver, but each year after that the limit will be four."

The changes in full

- The article forbidding team orders (39.1) is deleted. Teams will be reminded that any actions liable to bring the sport into disrepute are dealt with under Article 151c of the International Sporting Code and any other relevant provisions

- Amendments to the list of penalties Stewards are permitted to apply

- Revisions to driving and driver conduct

- A limit on the width of the fast lane in the pits

- The introduction of a regulation permitting the Race Director to close the pit lane during a race for safety reasons

- The re-introduction of intermediate tyres for 2011

- Penalties to be applied to any driver who fails to use both specification of dry weather tyre during the race

- An amendment requiring gearboxes to be used for five consecutive races, instead of four

- Clarification on when cars can overtake the safety car

- A refinement to the principles of the regulations already agreed concerning moveable rear wings

- A better definition of the reference plane, and reinforcement of bodywork deflection tests, especially at the front of the reference plane

- The allowance for anti-intrusion panels to protect drivers' legs



Amendments to the 2012 Technical Regulations were made in the following areas:

- Team communications will be made available to broadcasters

- The inclusion of fuel compounds produced from biomass

- A limitation on suspension uprights

