The decree, posted on the official Kremlin website, says the measure is meant to "enhance the protection of Russia's interests" at the Strasbourg court.
Some 12,000 complaints from Russia were brought to the court in 2006, amounting to one-fifth of all the cases sent to Strasbourg that year.
Many are filed by residents of Chechnya seeking redress for atrocities by federal forces in the North Caucasus.
(Interfax)