This paper presents the legal status of maritime facilities of the Republic of Croatia, which is regulated by the Maritime Code. Amendments to the Maritime Code from 2019 bring a number of changes that relate to the definitions of ships, yachts and boats and thus the status of these vessels. The reasons for changes in the definitions and lengths of the most important maritime facilities, namely the ship, yacht and boat, are explained. The provisions of the Maritime Code are coordinated with the highest standards prescribed by international conventions and EU directives, so the paper presents the importance of determining the ability of ships and other vessels for navigation or floating and immovable facilities for use with the ultimate goal of protecting human life and property at sea and also protecting the marine environment. In Croatia, the Croatian Ship Register performs the tasks of determining navigability. In particular, the paper presents the system of registration of all vessels and maritime facilities in the Register of Ships kept by port authorities and analyzes the new provisions of the Maritime Code concerning the Register of Ships.