[1] The MRT lines, when completed, would be operated as components of the Klang Valley Integrated Transit System.

The Mass Rapid Transit Corporation (MRT Corp), founded in September 2011, has been appointed by the government as the official and asset owner of the project and the rail lines.

[8] The newly launched Public Land Transport Commission (SPAD) would oversee and coordinate the entire MRT development in terms of cost, viability, alignment and integration, and will play the role of regulators once the project is completed.

[9][10] The national public transport infrastructure company, Prasarana Malaysia would ultimately own and operate the MRT.

[14] On 17 August 2011, the government announced that the Mass Rapid Transit Corporation (MRT Corp), a new company under the Finance Ministry had been formed to take control of the project from Prasarana Malaysia.

[14] The new MRT system is envisaged to radically improve and transform Kuala Lumpur's poor and sorely inadequate public transportation coverage and to propel the Klang Valley metropolitan area to be on par with that of a developed city.

The proposal also envisages a fivefold increase in rail ridership, in line with the government's target for public transport usage in the Klang Valley of 40% by 2020 from 18% in 2009.

Analysts estimate the cost could be significantly higher due to extensive tunneling works required.

It consists of 35 stations over 52.2 km stretching from Sungai Buloh to Putrajaya, passing through the city centre and serves the suburban areas of Kepong, Bandar Sri Damansara Sentul, Titiwangsa, Kuchai Lama, Sungai Besi, Seri Kembangan and Cyberjaya.

[34] The line will consist of 31 stations with 2 provisional stations over 50 km stretching from Bukit Kiara to the University of Malaya and will serve populated residential areas including Sri Hartamas, Titiwangsa, Mont Kiara, Segambut, KL Metropolis, Titiwangsa, Setapak, Setiawangsa, Cheras, Salak South, Pandan Indah, Cheras, Pantai Dalam and Bangsar South.