The railway company expects bids until April 10.
The railway upgrade project is divided into two lots and is estimated to cost a total RON4.71 billion (EUR1.04 billion), VAT included.
The contracts will be awarded to the lowest bidder and works should be completed within five years.
CFR has also launched procurement procedures for the upgrade of 60 kilometers of rail in Hunedoara county, estimated at EUR1.2 billion, VAT included.