Topicality. Market transformations in the country's economy caused the need to revise the labor relations institute from the economic development point of view. Particular importance was the theoretical reassessment labor relations institutional: the old labor law institutes, which corresponded to the administrative command system, must transform to new ones, that contain market needs. One of such labor relations institutes are contractual relations between the employer and the employee, which allow to personalize the labor relations as much as possible, consider the economic interest of both parties, and protect as far as possible the mutual interests and rights. Aim and tasks. The aim of the article is represented the main tendencies and realities of using an employment contract in Ukraine's companies, which is signed in the standard form. The current legislation gaps of the contract using are considered as a special employment contract form with the companies leaders and other employees categories, depending on the specifics enterprise's activity or belonging to the management sphere. The preconditions for the special legislation implementation are determined during the labor contracts conclusion with the Ukrainian's nature reserve fund enterprises heads. The personal responsibility for environmental protection legislation and violation conditions are considered. Proactive and experienced specialists are established an extensive system of allowances and one-time incentives. Research results. In this article we have reviewed the implementation preconditions during the labor contracts' conclusion with the enterprises' heads of the Ukrainian nature reserve fund. We have considered the responsibility personalization conditions for environmental legislation violations with the definition of socio-economic components. For example, the contract may also stipulate social and living conditions, such as the garden plot allocation, a car, living conditions improvement, the share sale at par value, the social pensions surcharges establishment, protection against inflation processes and so on. Also it may be envisaged an employee to move another area. Conclusions. A contract can give the chance to more people to realize their work abilities on the most favorable conditions, to build the civil society foundations and the legal capitalist state. Contract's application can detail the labor relations, the system of economic incentives and encouragement, protects the rights of both employee and employer, and also provides an opportunity to assess the mutual responsibility's degree.