The establishment of the National Spatial Data Infrastructure (NSDI) in the Republic of Croatia is conditioned by a number of factors. For the successful establishment and implementation of the NSDI, it is necessary to harmonize these factors, the degree of development of the national spatial databases and institutions, traditions, economic and legislative framework, human resources, EU accession and acceptance of EU laws, global influences, IT development, etc., as well as to build mechanisms that will enable a balanced development and implementation of the NSDI to the benefit of all its subjects and users. A unique situation, in which modern national data sets and NSDI are being built in parallel, represents a special challenge but also a great opportunity. Therefore, pursuing its tradition, the Republic of Croatia has legally defined the NSDI and the manner of its development by passing the Law on State Survey and Real Property Cadastre. Through the subsequent establishment of the NSDI Council and other bodies, an operational framework for the realization of this task has been created. Based on the analysis of the past activities linked to the establishment, degree of development of the implementation tools (Geoportal, CROPOS, JIS) and the present environment of the NSDI, an overview of the current situation has been provided as well as steps that will follow in the near future. Thereby, special emphasis was put on providing information and training for the NSDI subjects and users. Namely, the training and information on the NSDI will be of key importance in the initial stage for the acceptance and implementation of the entire NSDI concept in the broadest sense and shall, as such, significantly impact the speed of implementation and the effects this implementation will entail.