The article aims to study the question of conditionality and the nature of jurisdictional competence of the National Mediation and Reconciliation Service as a public authority and the subject of labor law – the member of relations with settlement of collective labor disputes (conflicts), principles of law that spread their regulating impact on the scope of its activities. It is found out the dependence of the efficiency of the National Mediation and Reconciliation Service on the requirements put forward by principles for settling collective labor disputes (conflicts) to this subject of labor law. Settlement opportunities of labor disputes based on the law’s principles acting in this field are investigated. To achieve the aim of the article different approaches of scientists on the interaction and interdependence of law and principles of law as a general social phenomena are analyzed. The correlation, interconnection and cooperation of principles of law with legal consciousness, both objective and subjective social legal phenomena, the regulatory and ideological components of law are researched. The role of law’s principles in determining the patterns of law’s development, ensuring of its unity with the legal regulation are studied. The impact of principles of law on the orderliness, consistency, sequence and the balance of the system of legal settlement of collective labor disputes (conflicts) are explored. The prospects for legislation’s improving, increase efficiency of its regulatory actions considering a general framework and
the essence of law expressed by principles of law are examined. The power of law’s principles as a universal means of direct regulation of public relations, consideration and legal disputes resolution, decision-making by jurisdictional bodies and their officials on the basis of principles of law are analyzed. The exercise of legal interpretation activity by public authorities aimed at identifying the actual content of legal norm on the basis of principles of law upon which normative legal acts are based.
National legislation and international legal acts regulating the relations with the settlement of collective labor disputes (conflicts) are investigated. Law enforcement practices and the existing legal order in the sphere of settlement of collective labor disputes (conflicts) are examined. On the basis of analysis of the approaches of scientists, fundamental provisions of international legal acts, general principles and the sense of national legislation and law enforcement practices of the National Mediation and Reconciliation Service it has been defined the principles of law which objectively reflect the existing in the area of settlement of collective labor disputes (conflicts) legal order and impose appropriate requirements for public relations on the settlement
of labor disputes and jurisdictional activity of the NMRS.
Keywords: principles of law, National Mediation and Reconciliation Service, public authority, subject of labor law, collective labor disputes (conflicts), general principles of legislation, legal order, principles for settling labor disputes