The Afghan government has requested the Pakistan add four years extension to the 1.5 million registered Afghan refugees to legalise their stay till 2020.
http://www.pakistantoday.com.pk/2016/05/30/national/afghan-govt-requests-4-year-extension-for-refugees-in-pakistan/
http://www.pakistantoday.com.pk/2016/05/30/national/afghan-govt-requests-4-year-extension-for-refugees-in-pakistan/