In the conditions of growing requirements for methods and means of combating negative phenomena of society, prevention and deterrence of corrupt actions of officials by creating new and editing old normative legal acts can significantly limit the development of such offenses and have a positive effect on the economic state of the country. The urgent task is to develop simple and effective methods of modelling and assessing the level of corruption orientation of normative legal acts. The paper examines the problem of quantitative assessment of the negative phenomenon of corrupt activity of officials, which can be stimulated by regulatory and legal acts. The purpose of the article was to improve the methods and techniques of analysis of the process of assessing the quality of normative legal acts by modelling their corruption orientation. The methods of fuzzy set theory and fuzzy logical inference, as well as the methods of probability theory are used in the process of modelling the quantitative assessment of the level of corruption oriented legal acts. The proposed approach makes it possible to simultaneously take into account separate criteria that are based on subjective assessments and have uncertainties of various natures, and are also characterized by a large number of them with their inequality and antagonism. At the same time, the modelling process provides the possibility of using both a clear and unclear representation of the initial data, reduces the influence of subjectivity of expert evaluation factors of a heuristic nature. There is no need to determine the weight of each individual factor when forming a global criterion for deciding on the level of corruption orientation of a normative legal act. On the basis of the obtained values of the global criterion, a decision is made to choose one or another variant of the normative legal act. The paper examines the stages of implementation of the proposed approach to assessing the level of corruption orientation of the normative legal act on the reclamation of forestry lands disturbed as a result of amber mining. The results of the work can be useful in the development of drafts of new legislation, as well as for researchers of methods of control and management of complex technical and economic systems