Central level 
Portugal's main transport network corridors are with neighbouring Spain. Central Government is responsible for:
- Implementation of TEN projects.
 - Oversight of TEN-T Regional Infrastructure Projects
 - Co-ordination of Transport authorities
 
Responsible ministries/bodies
Ministry of Infrastructure and Housing
 
Regional level
The Azores:
- Construction, and
 - Roads;
 - Regional Rail infrastructure (high speed lines)
 
Madeira:
- Infrastructure, and
 - Roads.
 - Regional Rail infrastructure (high speed lines)
 
Responsible ministries/bodies
Regional Authorities of Azores and Madeira
 
Local level
Municipalities are responsible for:
- The municipal road network, and
 - Regional railway lines or roads.
 
Intermunicipal entities are responsible for:
- Same areas, under agreement with the municipalities
 
Responsible ministries/bodies
Municipalities
 
Sources
TEN-T Projects Portugal
Estatuto Político-Administrativo da Região Autónoma da Madeira  (Law 130/99 of 29 August).
Estatuto Político-Administrativo da Região Autónoma dos Açores (Law 2/2009 of 12 January).
Law 75/2013 Legal Regime of Local Authorities 
Law 50/2018 Transference of Competences to Local Governments and Intermunicipal Entities
Law 51/2018 Local Finances Legal Framework