| July ’97: | A Public Inquiry is held as a mandatory requirement of the Transport (Dublin Light Rail) Act, 1996. |
| May ’98: | The Irish Government gives the green light to the Light Rail Transit system project. |
| October ’00: | Construction of the first Luas line starts. |
| December ’00: | The tender to find an operator for the Luas system is published. |
| December ’01: | Establishment of the Railway Procurement Agency (now Transport Infrastructure Ireland), acting as a stand alone, commercial semi-state organisation. |
| February ’02: | The Minister of Public Entreprise announces that Connex Transport Ireland is the preferred bidder for the Luas operator franchise. |
| May ’02: | Connex Transport Ireland is selected to operate the Luas system. |
| June ’04: | The first line (Green Line) opens on June 20th 2004. |
| September ’04: | The second line (Red Line) opens on September 28th 2004. |
| April ’06: | Connex Transport Ireland Ltd changes its name to Veolia Transport Ireland. |
| November ’06: | Luas carried its 50 millionth passenger. |
| October ’08: | RPA (now TII) extend the Veolia Transport Ireland contract to operate Luas and its future extensions to September 2014. |
| December ’09: | RPA (now TII) open the Luas Docklands extension on December 8th. |
| October ’10: | RPA (now TII) open the Luas Cherrywood extension on October 16th. |
| March ’11: | Veolia Transport merges with Transdev and becomes known as Veolia Transdev. |
| July ’11: | RPA (now TII) open the Luas Citywest extensionon July 2nd. |
| May ’13: | Veolia Transdev Ireland changes name to Transdev. |
| September ’14: | New Luas Operating Contract Awarded to Transdev. |
| December ’17: | TII open the Luas Broombridge extension December 9th. |
| June ’19: | Transdev won contract to Operate and Maintain Luas by TII and NTA 2019 – 2025. |
