The phrase "authoritative declaration" is correct and usable in written English.
It can be used in contexts where a statement or announcement is made with authority or official status.
Example: "The committee issued an authoritative declaration regarding the new policy changes that will take effect next month."
Alternatives: "official statement" or "formal announcement".
In Reynolds v. United States (1878) the Supreme Court used these words to declare that "it may be accepted almost as an authoritative declaration of the scope and effect of the amendment thus secured.
Such a system would satisfy the need for a prompt and authoritative declaration that a recession (as defined by economists) had ended, and it would also leave the committee with all the time it needed to discuss finer points, such as the exact month in which things turned up.
The word is that generic advice on important matters, news of improbable scientific breakthroughs and discoveries, dubious fiats on the subject of maintaining optimum bodily health -- essentially any amorphously authoritative declaration whatsoever -- can be treated as gospel by the intended recipient, no question about it.
Although an authoritative judicial declaration authorizing borrowing above the debt ceiling might alleviate investors' fears, obtaining such a declaration is no easy task.
The concept of international cooperation in helping to achieve universal respect for human rights has its basis in Articles 55 and 56 of the 1945 Charter of the United Nations UN Charterr), a formal and authoritative foundation for future declarations and treaties with respect to international cooperation.
For Zenawi to issue authoritative legal interpretation and dispositive declarations on what he concedes to be ambiguous questions of leasehold law is not only a travesty of justice but also an unconstitutional usurpation of judicial power.
Though its accuracy has in more recent times been disputed, in its own century it was admired and held authoritative, even in England; it inspired the Declaration of the Rights of Man and the Constitution of the United States.
The United Nations' Declaration of Commitment provides an authoritative assessment of the global threat posed by H.I.V. and AIDS and outlines a clear direction for addressing and correcting fundamental challenges.
A leader of the Virginia patriots on the eve of the American Revolution (1775 83), Mason served on the Committee of Safety and in 1776 drafted the state constitution, his declaration of rights being the first authoritative formulation of the doctrine of inalienable rights.
Sunday's rebranding exercise – presumably timed for maximum impact at the start of the holy month of Ramadan – certainly sounded authoritative: "We clarify to the Muslims that with this declaration of khilafah (caliphate), it is incumbent upon all Muslims to pledge allegiance to the Khalifah Ibrahim and support him (may Allah preserve him)," Isis commanded sternly.
The revelation was given in the voice of God rather than as a declaration mediated through Smith; and subsequent revelations assumed a similar authoritative style, often opening with words such as "Hearken O ye people which profess my name, saith the Lord your God".
