The National Migration Bureau (Dirección Nacional de Migraciones (NMB)) is the governmental office in charge of issuing residence permits. It has offices all over the country, and its headquarters are located in Buenos Aires.

The National Single Register for Foreigners (Registro Nacional Único de Requirentes de Extranjeros (RENURE)) inside the NMB is in charge of the registry and calls entities to determine the validity of foreign nationals' different types of residencies related to each company that may act as a calling entity.

The Ministry of Foreign Relations (Ministerio de Relaciones Exteriores, Comercio Internacional y Culto) is responsible for issuing visas at the Argentine consular offices outside Argentina.

The National Registry of Individuals (Registro Nacional de las Personas) issues national identification cards (Documento Nacional de Identidad (DNI)).

The Federal Tax Authority (Administración Federal de Ingresos Públicos (AFIP)) is involved in the process after the visa or residency is granted, to issue a workers' identification number (CUIL), which allows the foreign national to be legally employed by a local entity.

The National Social Security Administration (Administración Nacional de la Seguridad Social) grants a "provisory CUIL" for foreigners who have not obtained a national identity number — either because the work visa they applied for is for a short stay or because they have provisory residence certificates — until the proper and final residency is granted.

Inspections and admissions of foreign nationals are conducted by the NMB and the Federal Police at Argentine ports of entry. Investigations and enforcement actions involving employers, companies and foreign nationals are handled jointly by the NMB and the Ministry of Labor. These agencies are all part of the National Executive Branch.