The level of the NDC set by each country will determine the objectives of that country. However, the « contributions » themselves are not binding under international law because of the lack of specificity, normative nature or language necessary to establish binding standards.  In addition, there will be no mechanism to compel a country to set a target in its NDC on a specified date and not for an application if a defined target is not achieved in an NDC.   There will be only a « Name and Shame » system  or as UN Deputy Secretary General for Climate Change, J. Pésztor, CBS News (US), a « Name and Encouragement » plan.  Since the agreement has no consequences if countries do not live up to their commitments, such a consensus is fragile. A cattle of nations withdrawing from the agreement could trigger the withdrawal of other governments and lead to the total collapse of the agreement.  Exchange of banknotes constituting an agreement on certain tax exemptions for real estate received as a donation. Athens, November 15 and November 21, 1995 While the United States and Turkey are not part of the agreement, since the countries have not indicated their intention to withdraw from the 1992 UNFCCC, they will continue, as an « Annex 1 » country of the UNFCCC, to prepare national communications and an annual inventory of greenhouse gases.  How each country is on track to meet its obligations under the Paris Agreement can be constantly monitored online (via the Climate Action Tracker and the climate clock).
The EU and its member states are individually responsible for ratifying the Paris Agreement. There was a strong preference for the EU and its 28 Member States to simultaneously table their ratification instruments to ensure that neither the EU nor its Member States commit to commitments that belong exclusively to the other and there was concern that there was a disagreement on each Member State`s share of the EU-wide reduction target. just as Britain`s vote to leave the EU could delay the Paris pact.  However, on 4 October 2016, the European Parliament approved the ratification of the Paris Agreement and the EU tabled its ratification instruments on 5 October 2016 with several EU Member States.  Ratifications, accessions, subsequent agreements, etc., relating to international treaties and conventions registered with the Secretariat of the United Nations. The agreement stipulated that it would only enter into force (and therefore take full effect) if 55 countries responsible for at least 55% of global greenhouse gas emissions (according to a list drawn up in 2015)  ratify, accept, approve or accede to the agreement.   On April 1, 2016, the United States and China, which together account for nearly 40% of global emissions, issued a joint statement confirming that the two countries would sign the Paris climate agreement.  175 contracting parties (174 states and the European Union) signed the agreement on the first day of its signing.   On the same day, more than 20 countries announced plans to join the accession as soon as possible in 2016.