In this paper, an analysis of the construction of a distribution gas pipeline was carried out in order to increase efficiency, security of supply and energy efficiency, as well as the compliance of such projects with European and global energy transition policy. The legal and institutional framework of the European union focuses on increasing Europe's energy security and independence from natural gas originating in Russia, and this is confirmed by the filling of storage capacity in European gas storage facilities. Natural gas has a significant share in the energy mix of individual European countries, but presented by the Green Deal the European union should become carbon neutral by 2050. However, until a carbon neutral Europe is achieved, natural gas with low greenhouse gas emissions, unlike other fossil sources, can serve as a transition energy source. Based on the available data, the movement of the gas industry of the Republic of Croatia in the past and forecasts for its development in the context of current uncertainties were studied. There is a trend in the decline of domestic natural gas production, which directly results in an increase in the amount of natural gas supply. Furthermore, the potential of liquefied natural gas as well as investments in the existing LNG terminal significantly contribute to the stability of the gas economy of the Republic of Croatia. The analysis of the case study describes the technical part of the project of construction of a distribution gas pipeline on the example of the settlements kapinci and Vaška together with the prescribed conditions for the execution of works and the characteristics of the necessary material inputs in order to enable uninterrupted and safe supply of natural gas for households and industrial consumption. Although such an investment in the construction of a distribution pipeline is of a long-term character. The contribution of the construction of the pipeline in terms of strengthening security of supply and the availability of energy to the local population becomes a key reason for the project's compliance with European and global energy policy. In the future in the Republic of Croatia, natural gas will continue to be an integral part of the structure of the energy mix despite the increase in the share of renewable energy sources and will serve as a transitional fuel within the framework of a climate neutral European union by 2050.