Formula One's governing body cleared the McLaren team of any wrongdoing on Wednesday in its 1-2 finish at the Monaco Grand Prix.
FIA opened an investigation Monday into possible rules violations after the team ordered Lewis Hamilton not to challenge Fernando Alonso in Sunday's race. Alonso finished first, 4.095 seconds ahead of Hamilton.
FIA dropped the case on Wednesday after studying the radio traffic between the team and its drivers and the FIA observer's report from the race.
"It is clear that McLaren's actions during the 2007 Monaco Grand Prix were entirely legitimate and no further action is necessary," FIA said in a statement.
FIA banned so-called "team orders" after Rubens Barrichello was told by Ferrari to allow teammate Michael Schumacher to pass him to win the 2002 Austrian GP. Ferrari was find $1 million.
McLaren team principal Ron Dennis said after Sunday's race he asked Hamilton to slow down because of the tight street circuit in Monte Carlo.
FIA ruled today that the team and drivers did nothing wrong.
"It's standard procedure for a team to tell its drivers to slow down when they have a substantial lead," the statement said.
"This is in order to minimize the risk of technical or other problems. It is also standard practice and entirely reasonable to ask the drivers not to put each other at risk.
{{/usCountry}}"This is in order to minimize the risk of technical or other problems. It is also standard practice and entirely reasonable to ask the drivers not to put each other at risk.
{{/usCountry}}"McLaren were able to pursue an optimum team strategy because they had a substantial advantage over all other cars. They did nothing which could be described as interfering with the race result.