The phrase "acceding states" is correct and usable in written English.
It is typically used in legal or political contexts to refer to states that are joining or agreeing to a treaty or agreement.
Example: "The treaty will come into effect once the required number of acceding states have ratified it."
Alternatives: "joining states" or "newly joined states".
Any acceding State party to the present pact may conclude special agreements, in accordance with article 1, with one or more States parties to the present pact.
The competent authority of any acceding State may determine measures in accordance with article 2. These a measures will become operative as soon as they have been approved by the Governments of the parties concerned.
However, a UK spokesman at the UN said: "The procedures of the Chemical Weapons Convention assume a good faith and a commitment on the part of the acceding state which simply cannot be extended to Syria immediately after it has used chemical weapons against its own people".
The nature of the subject matters varied depending on the acceding state.
The acceding State must in addition uphold the principle of an open market economy with free competition (ECT Article 3a).
Once the negotiations have been concluded, the definitive opinions are delivered by the Community Institutions ( 6), and the accession Treaty is then signed and ratified by the existing EU Member States and the acceding country.
In particular, the acceding Member States should accept the fundamentals of EU policy in these sectors.
He admitted that the large States did accede as had been stated, to the Confederation in its present form.
Croatia completed the accession negotiations on 30 June 2011; on 9 December 2011 it signed the Treaty of Accession, changing its status from a candidate to an acceding country as it prepared to become the 28th EU member state.
When the new member states acceded to the EU in 2004, only Ireland, Sweden and the UK lifted all restrictions on workers from the new member states.
