According to its mission statement, the Pakistan Nuclear Regulatory Commission's (PNRA) mission is to "ensure safe operation of nuclear facilities and to protect radiation workers, [the] general public and the environment from the harmful effects of radiation by formulating and implementing effective regulations and building a relationship of trust with the licensees and maintain transparency in its actions and decisions." [1]

In January 2001, the PNRA was established to replace the Pakistan Nuclear Regulatory Board, which was then subordinate to the Pakistan Atomic Energy Commission (PAEC). Independent from the PAEC, the PNRA reports to the Prime Minister. [2] In April 2006, the PNRA clarified its role, stating that it does not run or operate nuclear power plants, but regulates activities related to design, construction, and operation of plants. [3] On 18 September 2009, the PNRA announced the establishment of the National Safety Analysis Centre (NSAC), which will provide technical support to the PNRA. The status of the project, originally scheduled for completion by June 2014, is unknown. [4]

Sources:
[1] Pakistan Nuclear Regulatory Authority, www.pnra.org.
[2] "President issues ordinance to set up nuclear regulatory authority," BBC Summary of World Broadcasts, 24 January 2001; Pakistan Nuclear Regulatory Authority, www.pnra.org.
[3] "Pakistan Nuclear Regulatory Authority clarifies report on establishment," BBC Worldwide Monitoring, 8 April 2006.
[4] "Pakistan to set up safety analysis centre to aid nuclear regulatory authority," BBC Worldwide Monitoring, 18 September 2009.