Advances in Social Science, Education and Humanities Research, volume 498 Proceedings of the XIV European-Asian Law Congress "The Value of Law" (EAC-LAW 2020) Legal Customs as a Form of Environmental Law and Natural Resource Law Nadezhda Alekseeva1, Valerii Vlasenko1, Vladislav Panchenko2,3,4,5, Ivan Makarchuk2,3,*, Sergey Shimansky3 1Russian State University of Justice, 117418 Moscow, Russia 2Siberian Federal University, 660041 Krasnoyarsk, Russia 3Krasnoyarsk State Agrarian University, 660049 Krasnoyarsk, Russia 4Federal Siberian Research and Clinical Center FMBA, 660037 Krasnoyarsk, Russia 5Research Institute of the Federal Penitentiary Service of Russia, 125130 Moscow, Russia *Corresponding author. Email:
[email protected] ABSTRACT This article researches the development of a custom from a tradition and a stable rule of conduct as a result of its systematic prolonged multiple repetition for a long time, authorized by the state in a legal norm, thereby formed to a custom it becomes a legal provision. A custom becomes a full-fledged form of law only by sanctioning. There are three ways of its formalization by the state: direct, judicial, and silent authorization. The focus of the research is whether a custom can regulate social relations and be a source of law especially of an environmental and a natural resource law. A custom has played a role as the regulative measure and management of natural resources. It becomes legal when it is fixed or not fixed in the rule of law, but been applied as a legal one, when the rule of law indicates that. The main conclusion is that the custom is a rule of conduct that is widely used in any area of activities, regardless of whether it is fixed as a rule of law or not, it can be applied in the field of environmental and natural resource law, not only by the analogy of the law, as the courts have done before, but also directly.