Ratification in subject to use in many contexts, but broadly, it means the review and formal approval of an action taken on behalf of a group. Ratification, in the labor relations context, refers to the formal concurrence in a newly negotiated agreement by vote of the labor organization members affected.
The constitution of the United States, art. 2, s. 2, declares that the president shall have power, by and with the advice and consent of the senate, to make treaties, provided two-thirds of the senators present concur. No treaty is therefore of any validity to bind the nation unless it has been ratified by two-thirds of the members present in the senate at the time its expediency or propriety may have been discussed.
