Part I International laws and mechanisms UN Photo by Jean-Marc Ferré. 5.1. Basis of the review The UPR is to review the “fulfilment by each State of its human rights obligations and commitments based on human rights treaties and other instruments that they have ratified”.91 It is based on obligations arising from: • the United Nations Charter • the Universal Declaration of Human Rights • the human rights treaties to which the State is a party • voluntary pledges and commitments made by the State, including those undertaken when presenting its candidatures for election to the Human Rights Council92 • applicable international humanitarian law.93 The second and subsequent cycles of the UPR will also examine the implementation of recommendations accepted by the State under previous reviews, as well as developments in the human rights situation in the State.94 91 General Assembly Resolution 60/251; para. 5(e). 92 HRC Resolution 5/1; Part I.A; para. 1. 93 HRC Resolution 5/1; Part I.A; para. 2. 94 HRC Resolution 16/21; para. 6. Chapter 3: Other UN instruments and mechanisms relevant to the rights of migrant workers | 37