The phrase "a new declaration" is correct and usable in written English.
You can use it when referring to a recently made statement or announcement, often in formal or official contexts.
Example: "The government issued a new declaration regarding environmental policies that aims to reduce carbon emissions."
Alternatives: "a fresh statement" or "a recent announcement."
UNAIDS issued the report today to coincide with the U.N. General Assembly High-Level Meeting on AIDS, which will gather member nations in New York City from 8 to 10 June to hammer out a new declaration about how best to address the epidemic.
In creating a new declaration of principles today, each side will have to give.
This time a new declaration will commit Palestinians to negotiate but keep armed struggle as a "right" if talks fail.
In February 2000, President Ernesto Zedillo went to Tijuana to issue a new declaration of war on crime.
In a new declaration in 2012, Mr. Mujica said he was sharing ownership of assets previously in his wife's name, including their home and farm equipment, which lifted his net worth.
Along a railroad from Philadelphia to Washington, a route once traced by his hero Lincoln, Obama on Saturday urged Americans to adopt a new "Declaration of Independence" from bigotry, small thinking and ideology.
A second senior official said the US intended to call on China to "exercise restraint" and "avoid any other destabilising actions", including a new declarations of air defence zones.
Chelsea maintain Terry could yet be offered a new contract after his public declaration he would be leaving at the end of the season.
Could it be that a bold new declaration will serve as a vital clarion call to revive the Spirit of '76?
It is not yet clear how the military government will apply its new declaration — a council of officers has already governed for seven months in suspension of the Constitution, obviating the right to a fair trial, and it has previously warned with little effect of its intolerance of disruptive protests.
In a footnote to the new declaration filed Monday night, Hardy said, "Due to the sensitive nature of the investigation, the number of FBI personnel and involved in and having knowledge of the pending investigation is limited".
