Resolution No. 40 of the United Nations Economic Commission for Europe (UNECE) on the issuance of International Certificates for Captains of Pleasure Boats was designed to simplify and standardize the cross-border recognition of these certificates. Despite these international efforts, Austrian sailors and boat captains face challenges because the recognition of such certificates is not uniform. In popular holiday destinations in particular, such as Spain, France, Italy, Greece, as well as Albania, Montenegro, Poland, Sweden and Denmark, the ICC certificate issued under this resolution is not automatically accepted. Restricted authorization: Even if a certificate is generally recognized, certain restrictions may exist, such as a limit on the distance from the coast for which the certificate is valid. Additional exams or certificates required: In some cases, countries recognize the basic scope of a certificate, but require additional local exams or proof for special sailing authorizations, such as night sailing or driving certain types of boats. This discrepancy between international and local regulations in individual countries means that Austrian holidaymakers have to study the requirements of the destination country in detail in order to navigate safely and in accordance with the law. The label "international" on a boating license does not guarantee worldwide recognition or authorization to operate a pleasure boat in all waters. Austrian sailors and boaters who plan to use their skills in international waters (foreign countries) must plan and prepare carefully. This can often require obtaining additional local certificates or permits to meet the specific requirements of each country. The situation underlines the need for a flexible and well-informed approach to sailing and