In 1971, the Hellenic State Railways was reorganised into the OSE[2] taking over responsibilities for most for Greece's rail infrastructure.

[3] In 1991 the line Athens Leianokladi-Lamia-Stylida is reopened with passenger trains and freight services.

In 2011 the passenger operation of the line is transformed into a suburban line with 12 pairs of routes, 7 between Leianokladi-Lamia-Stylida and the remaining 5 between Leianokladi-Lamia, the connecting bus that connected the OSE agency in Lamia with the Leianokladi station.

On 16 March 2020, in the midst of the 2020 coronavirus pandemic, it was decided to suspend services (trains and bus lines) temporarily.

In July 2022, the line began being served by Hellenic Train, the rebranded TranOSE[7]