Decreto-Lei n.º 39/2023, de 30 de maio, Diário da República n.º 104/2023, Série I de 2023-05-30, páginas 10 - 39, Estabelece as regras de certificação das pessoas que operam em embarcações que navegam nas vias navegáveis interiores

This decree-law sets out the requirements for certifying individuals who operate vessels on inland waterways. It aims to ensure safety and professional standards for those working on rivers and canals. The rules apply to all personnel operating vessels on Portugal's navigable inland waterways, impacting training, examination, and licensing processes for maritime professionals.