REFER is the public company responsible for providing the public service infrastructure management member of the national rail network, with activities that include:
Construction, installation and renewal of railway infrastructure;
Network capacity management;
Command and control of the movement;
Care and maintenance of the infrastructure.
The main object of REFER consists of utility infrastructure management member of the national rail network, in order to ensure the regular and continuous supply of public service and providing the market with a competitive and safe transport infrastructure, while respecting the environment.