The phrase "a formal proclamation" is correct and usable in written English.
It can be used when referring to an official announcement or declaration made in a serious or ceremonial manner.
Example: "The mayor issued a formal proclamation declaring the day a public holiday in honor of the city's founding."
Alternatives: "an official announcement" or "a ceremonial declaration."
The BBC had live coverage of the scene outside Buckingham Palace, where a formal proclamation of the birth was placed on a gold-trimmed wooden easel.
With the signatures validated, Gov. John Baldacci, a Democrat, signed a formal proclamation on Wednesday putting the law to a statewide vote on Nov. 3.
On May 9, 2010, Rousey took to her blog to issue a formal proclamation: "I finally feel like I've realized what I want to accomplish next and made the decision to f**k all and go for it".
The LSA issued a formal proclamation in late 1920 that it would only accept whites and in 1922 changed the masthead of Lone Scout from "A Real Boys Magazinee" to "The White Boys Magazine".
After the death of a Sovereign the Accession Council (made up of Privy Councillors and other officers such as the Lord Mayor of London) meets at St. James's Palace to make a formal proclamation of the accession of the next Sovereign.
When he first announced his Proclamation, it was a statement he planned to issue a formal declaration on Jan . 1 , 1863
No matter, suggested the Taliban, which calls itself the Islamic Emirate of Afghanistan, in a statement bluntly titled: "Formal Proclamation of Islamic Emirate's Victory".
This format suitably adapted for Afghanistan could include a formal Afghan proclamation of neutrality, its endorsement by the Security Council, and the acceptance of reciprocal obligations by the Afghan state and relevant countries.
With the formal overthrow of the monarchy and the formal proclamation of the First Republic (with Micombero as president), the last obstacle in the path of Tutsi domination was removed.
Devoted to Mary, Pius in 1950 announced the dogma that she was bodily assumed into heaven, the sole infallible declaration made after the formal proclamation of the doctrine of infallibility at the First Vatican Council (1869 70).
It did not occur until 7 February 1788, when the formal proclamation of the colony and of Arthur Phillip's governorship were read out.
