As part of the system to coordinate the social security and social welfare
systems of different member states, the purpose of the E forms is to transfer
the entitlements required by workers of one member state to another when they
move due to work or to seek employment, etc.
In Spain, the organisation responsible for matters relating to E forms is the
Instituto
Nacional de la Seguridad Social (INSS) or National Security
Institute, through its network of care centres (CAISS) and the body responsible
for matters relating to E300 series forms is the Instituto
Nacional de Empleo (INEM) or National Employment Institute, through its
network of employment offices
For Social Security: The current forms are accessible from the Internet in
PDF format and must be downloaded, completed and delivered to the corresponding
Social Security office.