Central level

State competences:[1]

• Exclusive overall competence (legislative and executive) for inter-autonomic transport and building and management of transport infrastructures of general interest;
• Responsibility for national legislation, policy-making, planning and coordination;
• Crisis coordination and management;
• Policy-making and management of roads and railways transports with a trans-regional dimension;
• Policy-making and implementation of air and sea transports, of general interest or engaged in commercial activities;
• Ensuring implementation of Plan Estratégico de Infraestructuras y Transportes (PEIT,  Strategic Infrastructures and Transport Plan) and its sectoral plans and programmes, as well as coordination of regional actions;

Monitoring of implementation of PEIT, as well as revision and adaptation (Directorate-General of Territorial Planning and Coordination of the Ministry of Public Works and Transport).

Responsible ministries/bodies

Ministry of Transport, Mobility and Urban Agenda

Regional level

Regional level authorities (Autonomous Communities) are responsible for:[1]

• Exclusive overall competence (legislative and executive) for intra-autonomic transport and building and management of transport infrastructures of regional interest;

• Implementation and management of national policy;
• Management, planning, coordination and monitoring of public transport activities and services at regional level;
• Roads and infrastructure limited to the AC territory;
• Railways and infrastructure limited to the AC territory
• Airports and ports and infrastructures, not engaged in commercial activities;
• Implementing actions/objectives of PEIT within the AC territories;
• Participation in the management of State transport infrastructures in the AC:
• In case of harbours it means that the ACs participate in the harbour council and appoints the director of the harbour.
• In case of airports, the model is under revision for increasing the ACs' participation.

Inter-urban and metropolitan transport (in coordination with local authorities and usually with the State financial cooperation).

Local level

Provincial competences

• Securing coordination and provision of municipal services.

Municipal competences[3]

• Participation in metropolitan transport;
• Road maintenance and guaranteeing access to urban areas;
• Public transport of passengers;
• Collective urban transport if > than 50.000 inhabitants.

Sources

Spanish Constitution, Articles 149.1.21 and 148.1.5.

Ministerio de Transportes, Movilidad y Agenda Urbana, Organización y funciones, Secretaría de Estado de Infraestructuras, Transportes y Vivienda. [Ministry of Transport, Mobility and Urban Agenda, Organization and Functions, State Secretary for Infrastructures Transports and Housing] 

Ministerio de Transportes, Movilidad y Agenda Urbana, Plan Estratégico de Infraestructuras y Transporte (PEIT). [Ministry of Development, Strategic Infrastructures and Transport Plan]

Ley 7/1985, de 2 de abril, Reguladora de las Bases del Regimen Local (BOE-A-1985-5392) (Law regulating the basis of the local government system).

[1] Spanish Constitution, Article 149.1.

[2] Spanish Constitution, Aticle 148.1.

[3] These competences shall be exercised in accordance to the conditions defined in the Regional and State laws, therefore there might be slight differences from one Autonomous Community to another. Most importantly, depending on the size of the municipality, some functions will be assumed by the Provincial Government as specified in Article 26 of the Ley 7/1985 Reguladora de las Bases del Regimen Local.