(CNN) -- The ban on team orders in Formula One will be lifted for the 2011 season, motorsport's ruling body announced on Friday.
Team orders have long been a contentious issue in F1, and were outlawed in 2002. This year Ferrari received a $100,000 fine for appearing to tell Felipe Massa to let Fernando Alonso pass him and win in Germany.
However, teams will now be able to legally prioritize their drivers and force one to give way to the other in races.
"The article forbidding team orders is deleted," the FIA said in a statement on its website.
And from 2012, teams' in-race strategies will be made more transparent with a new rule stating that their communications will be made available to broadcasters.
The World Sport Motor Council, which governs regulations, agreed on a series of rule changes to be introduced in March at its meeting in Monaco.
Teams will have the option of using adjustable rear wings to aid overtaking, while intermediate tires will be reintroduced.
And the KERS power system -- which restores energy lost in breaking and reuses it during acceleration -- will also be used again from the start of the season. It was last used by Ferrari, McLaren, BMW and Renault in 2009.
The other major change will come into force two years later when a greener engine is introduced in order to improve the sport's environmental credentials.
"The WMSC approved the introduction of a new specification engine from 2013, underlining the FIA's commitment to improving sustainability," the statement read.
"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."