ratification

n. certification, approval, sanction, authorization

Ratification is the act of giving official sanction to a formal document such as a treaty or constitution. It includes the process of adopting an international treaty by the legislature, a constitution, or another nationally binding document (such as an amendment to a constitution) by the agreement of multiple sub-national entities. The process of ratifying a constitution is most commonly observed in federations such as the United States, confederations or international organisations sui generis such as the European Union.
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Noun
1. making something valid by formally ratifying or confirming it; "the ratification of the treaty"; "confirmation of the appointment"
(synonym) confirmation
(hypernym) agreement
(derivation) sign, ratify

n. ratification, confirmation, credit

(n.)
The act of ratifying; the state of being ratified; confirmation; sanction; as, the ratification of a treaty.