Central level

State competences[1]

• Exclusive and overall responsibility for defining, planning, regulating and developing national immigration and asylum policies, including the management of authorisation procedures for entering the Spanish territory, as well as residence and work permits;
• Preparation of multi-annual strategic plan for immigration and programmes of biennial actions to reinforce social integration of immigrants and people under national protection;
• Processing of requests for international protection (Oficina de Asilo y Refugio);
• Provision for a National Fund for integration of immigrants, in cooperation with the Autonomous Communities;
• Agreement for collaboration with countries which consider the prevention of irregular immigration, the protection and return of unaccompanied minors;
• Contracting of foreigners in their home countries or with visas in Spain;
• Management of authorisation procedures for entering the Spanish Territory.
• Management of Asylum Migration and Integration Fund (AIMF)
• Reception Centres for asylum seekers, refugees and beneficiaries of international protection.
• Cross-border cooperation agreements with neighbouring countries, including Morocco.
• Management of the Centres of Internment of Foreigners (CIES in Spanish)

Regional level

• Social integration of immigrants (social services, education and health);
• Care and social integration of minors;
• Processing and termination of work permits for work in the AC territory, in coordination with State authorities. In practice only two Autonomous Communities assume it: Catalonia (effectively) and Andalusia (bylaws);
• Control of work of immigrants;
• Management of emergency ports;
• Participation in the Sectoral Conference on immigration: proposals relating to immigrants' entry quotas, when they exist.

Local level

Provincial competences

• Securing coordination and provision of municipal services.
  

Municipal competences[2]

• Provision of social services and assistance, in accordance with AC regulations;
• Maintenance and update of municipal register, in accordance with AC regulations;
• Approval of reports on housing and on social integration which are necessary to obtain some residence permits, in accordance with AC regulations.

Responsible ministries/bodies

Central

Regional

• Government Delegations for Autonomous Communities

Sources

Ley 12/2009, de 30 de octubre, reguladora del derecho de asilo y de la protección subsidiaria [Law 12/2009, of 30 October, regulating the asylum right and subsidiary protection].

Ley Orgánica 2/2009, de 11 de diciembre, de reforma de la Ley Orgánica 4/2000, de 11 de enero, sobre derechos y libertades de los extranjeros en España y su integración social [Organic Law 2/2009, of 11 December, of reform of Organic Law 4/2000, of 11 January, about rights and liberties of strangers in Spain and their social integration].

Real Decreto 557/2011, de 20 de abril, por el que se aprueba el Reglamento de la Ley Orgánica 4/2000, sobre derechos y libertades de los extranjeros en España y su integración social, tras su reforma por Ley Orgánica 2/2009.

Secretaría del Estado de Migraciones [State Secretary of Migrations]

Centros de internamiento de extranjeros (CIES) http://www.interior.gob.es/web/servicios-al-ciudadano/extranjeria/regimen-general/centro-de-internamiento-de-extranjeros

[1] Art. 149.1.2 Spanish Constitution

[2] 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 the other.