Protocol No. 14 to the European Convention for the Protection of Human Rights and Fundamental Freedoms 1950 (ECHR), that entered into force on June 1, 2010, provides a number of innovations aimed at increasing work efficiency of the control mechanism of the ECHR. One of the major innovations is an extension of the catalogue of conditions of applications admissibility due to a new three-tier criterion. The day when Protocol No. 14 came into force, the European Court of Human Rights examined the application as to its compatibility with the new admissibility criterion, and one month later, on July 1, 2010, the Court declared inadmissible the application of Korolev v. Russia under par. B, part 3, Article 35 of the ECHR as amended by Protocol No. 14. In its decision in the case of Korolev, for the first time the European Court of Human Rights structured and disclosed contents and volume of each of three elements of the new applications admissibility criterion.