The phrase "adopted a declaration" is correct and usable in written English.
It can be used when referring to the act of formally accepting or endorsing a statement or document, often in a legal or organizational context.
Example: "The committee adopted a declaration affirming their commitment to sustainability."
Alternatives: "passed a declaration" or "endorsed a declaration".
The five-day conference in Geneva adopted a declaration running to 143 paragraphs.
In 1917, at the St . Louis Missouri) Congress, the alliance adopted a "Declaration of Principles".
A week later, the General Assembly adopted a "Declaration of the Occupation," which is more a world view than a list of demands.
At a meeting in Uppsala in 1593 the clergy adopted a declaration that became the definitive confirmation of Sweden as a Lutheran country.
As an antimilitarist organization, it adopted a declaration in its founding year that has not changed: War is a crime against humanity.
The congress adopted a declaration re-emphasising the importance of judicial capacity-building, and calling on governments to strengthen UNEP's role, and to develop more effective institutions for dealing with transborder crime and international environmental disputes.
At the end, they are expected to adopt a declaration renewing their commitment to goals like preventing conflicts and expanding the Internet in poor countries.
Tomorrow, representatives of all UN member states will adopt a declaration that commits them to another decade of the same strategy, in the hope of achieving different results.
The UN general assembly is expected to formally adopt a declaration agreed on 2 August, reaffirming the rights of refugees and migrants and pledging support to the countries most affected by large movements of people.
At the summit, NATO leaders will adopt a Declaration on Alliance Security that will not only reaffirm NATO's core business but also set out, in general terms, what it should do in future.
Like the great civil rights leaders of the 1960's, these new advocates have a dream, and it is to persuade the United Nations to adopt a Declaration on Great Apes, a sort of updated version of the Universal Declaration on Human Rights.
