A high level and quality of administration of justice in countries with a welldeveloped legal system is marked not only by the system of proceedings at trial court, but also by the efficient system of review of court decisions. The institute of court decision review due to newly discovered or exceptional circumstances in economic proceedings ensures that a fair and lawful court decision is passed and provides an additional guarantee of and possibility for implementation of the main purpose of economic proceedings – efficient protection of infringed rights and legitimate interests of individuals and legal entities and the State. The amended Code of Economic Procedure of Ukraine, on the one part, has improved the institute of court decision review due to newly discovered or exceptional circumstances, and on the other part has raised new issues of theoretical and practical nature which require further clarification. The purpose of the article is to define the concept and signs of court decision review due to newly discovered or exceptional circumstances with due regard for changes in the legislation and for the judicial reform processes in Ukraine, since this is important both in terms of the theory of law and in terms of court practice; the article also presents the author’s own vision with regard to marking out of the specific signs of court decision review due to newly discovered or exceptional circumstances. It is established that court decision review due to newly discovered or exceptional circumstances does not ensue from a judicial error but from an objective error, this being a legal fact of procedural nature. The author marks out the signs of court decision review due to newly discovered or exceptional circumstances and provided substantiation for the concept “court decision review due to newly discovered or exceptional circumstances”, “newly discovered circumstances”, “exceptional circumstances”, “proceedings for review of a court decision due to newly discovered or exceptional circumstances”. The article also focuses on the grounds for review of court decisions due to newly discovered or exceptional circumstances. The author comes to the conclusion that the main task of reviewing a court decision due to newly discovered or exceptional circumstances is to determine its legality and validity with the aim of efficiently reinstating the infringed rights. Proceedings for review due to newly discovered or exceptional circumstances may be defined as the procedure established by the provisions of economic procedure law according to which a court decision may be reviewed with the aim of identifying and eliminating an objective judicial error by legal assessment of newly discovered or exceptional circumstances and their impact on the legality and validity of a court decision. The procedural law does not provide for a complete review of a court decision due to newly discovered circumstances. Consequently, an economic court may review a court decision due to newly discovered circumstances only to the extent that these circumstances affect the essence of the decision.

List of legal documents 
 

Legislation 
1. Hospodarskyi protsesualnyi kodeks Ukrainy [Commercial Procedure Code of Ukraine]: Zakon Ukrainy [the Law of Ukraine] vid 6 lystopada 1991 r. 2017 r. № 1798-XII. URL: http://zakon3.rada.gov.ua/laws/show/1798-12/page10 (accessed: 16.04.2018) (in Ukrainian).

2. Pro vnesennia zmin do Hospodarskoho protsesualnoho kodeksu Ukrainy, Tsyvilnoho protsesualnoho kodeksu Ukrainy, Kodeksu administratyvnoho sudochynstva Ukrainy ta inshykh zakonodavchykh aktiv [On Amendments to the Commercial Procedural Code of Ukraine, the Civil Procedural Code of Ukraine, the Code of Administrative Legal Proceedings of Ukraine and other legislative acts]: Zakon Ukrainy [the Law of Ukraine] vid 3 zhovtnia 2017 r. № 2147-VIII. URL: http://zakon.rada.gov.ua/laws/ show/2147-19 (accessed: 16.04.2018). 

Cases 
3. Delo “Brumarescu v. Rumyniya” [Case of Brumarescu v. Romania]: postanovlenie Evropeys’kogo suda z po pravam cheloveka [Ruling of the European Court of Human Rights] ot 28 oktyabrya 1999 g. zayavlenie № 28342/95 accessed 16 April 2018 (in Russian). 
4. Delo “Pravednaya protiv Rosіyskoi Federatsіi” [Case of Pravedna v. the Russian Federation]: postanovalenie Evropeyskogo suda po pravam cheloveka [Ruling of the European Court of Human Rights] ot 18 noyabrya 2004 g. zayavlenie № 69529/01 accessed 16 April 2018 (in Russian). 
5. Postanova Verkhovnoho Sudu [Resolution of the Supreme Court] vid 6 liutogo 2018 r. u spravi № 923/605/13. URL: http://www.reyestr.court.gov.ua/Review/72164780 (accessed: 16.04.2018) (in Ukrainian). 
6. Postanova Verkhovnoho Sudu [Resolution of the Supreme Court] vid 21 bereznia 2018 r. u spravi № 2/593-16/131. URL: http://www.reyestr.court.gov.ua/Review/73054785 (accessed: 16.04.2018) (in Ukrainian). 
7. Pro deiaki pytannia praktyky perehliadu rishen, ukhval, postanov za novovyiavlenymy obstavynamy [On Some Issues Pertaining to the Practice of Review of Decisions, Rulings and Resolutions Due to Newly Discovered Circumstances]: postanova Plenumu Vyshchoho hospodarskoho sudu [Resolution of the Plenum of the High Economic Court] vid 26 grudnia 2011 r. № 17. URL: http://zakon2.rada.gov.ua/laws/show/ v0017600-11 (accessed: 16.04.2018) (in Ukrainian). 
8. Pro zastosuvannia tsyvilnoho protsesualnoho zakonodavstva pry perehliadi sudovykh rishen u zviazku z novovyiavlenymy obstavynamy [On the Application of Civil Procedural Legislation for Court Decision Review Due to Newly Discovered Circumstances:]: postanova Plenumu Vyshchoho spetsializovanoho sudu Ukrainyz rozghliadu tsyvilnykh ta kryminalnykh sprav [Resolution of the Plenum of the High Specialized Court of Ukraine for Civil and Criminal Cases] vid 30 bereznia 2012 r. № 4. URL: http://zakon3.rada.gov.ua/laws/show/v0004740-12 (accessed: 16.04.2018) (in Ukrainian). 

Authored books 
9. Belianevych V, Hospodarskyi protsesualnyi kodeks Ukrainy: (iz zminamy i dopovnenniamy stanom na 22 veresnia 2005 roku): Naukovo-praktychnyi komentar [The Commercial Procedural Code of Ukraine: (with Amendments and Additions as of September 22, 2005): Scientific and Practical Commentary] (Iustinian 2006) (in Ukrainian). 

Journal articles 
10. Bielkin M ta Bielkina Yu, ‘Zastosuvannia pryntsypu rozumnosti v hospodarskykh ta tsyvilnykh sporakh’ [‘Application of the Principle of Reasonableness in Economic and Civil Disputes’] (2009) 1 Visnyk hospodarskoho sudochynstva 99 (in Ukrainian). 
11. Izarova I, ‘Poniattia ta oznaky novovyiavlenykh obstavyn u tsyvilnomu protsesi’ [‘Concepts and Features of Newly Discovered Circumstances in the Civil Process’] (2011) 3 Visnyk Akademii advokatury Ukrainy 57 (in Ukrainian).