A critical component of Nationally Determined Contributions is that actions must be implemented in a measurable, reportable and verifiable manner. The need for the measurement, reporting and verification system arises from the provisions of Article 13 of the Paris Agreement regarding the establishment of a transparency framework that fosters mutual trust between the parties and promotes effective implementation of climate change actions and support. The transparency framework is a key element for the successful implementation of the Paris Agreement, as it will allow the monitoring of progress on individual country targets set forth in their NDCs.

Aware of this great global challenge, El Salvador signed the Paris Agreement on December 12, 2015 during the twenty-first United Nations Conference of the Parties on Climate Change (COP 21). The Agreement entered into force on November 4, 2016. El Salvador signed its accession to this instrument on April 22, 2016 and submitted its formal instrument of ratification to the United Nations depositary on March 27, 2017, becoming a party to it one month later, on 26 April of the same year. The revised instrument was submitted to the United Nations Framework Convention on Climate Change on October 30, 2017.