The purpose of this document is to provide guidance to national AIDS programmes and partners on the use of indicators to measure and report on the country response. The 2016 United Nations Political Declaration on Ending AIDS, adopted at the United Nations General Assembly High-Level Meeting on AIDS in June 2016, mandated UNAIDS to support countries in reporting on the commitments in the Political Declaration. The Political Declaration on Ending AIDS built on three previous political declarations: the 2001 Declaration of Commitment on HIV/AIDS, the 2006 Political Declaration on HIV/AIDS and the 2011 Political Declaration on HIV and AIDS.