A nuclear test-ban treaty the register still carries without a registration number
Background
The United Nations Treaty Collection carries the Comprehensive Nuclear-Test-Ban Treaty with its Registration Number shown as N/A and no volume number in the United Nations Treaty Series, because a treaty is registered ex officio only once it takes effect. Its place and date of conclusion are given as New York, 10/09/1996. The Secretary-General of the United Nations is the depositary and the agreement type is recorded as Multilateral. The register's attachments field shows that the instrument comes with annexes and protocol. Its ICJ information field reads: see article VI (2) for provisions relating to the jurisdiction of the International Court of Justice. It has six authentic texts: Spanish, Russian, French, English, Chinese and Arabic. The register gives it five subject terms, more than most instruments carry: Nuclear matters, Environment, Energy, Disarmament and Arms. The participant table records each state's action and date separately, so a state may appear twice, once for Signature and once for Ratification.
In plain words
Protocol Protocol to a treaty — A separate instrument attached to a treaty that adds to or works out its provisions.
Ratification Ratification — The act by which a state, after signing, finally binds itself to a treaty.
Subject terms Subject terms — The index headings the treaty register uses to group instruments by topic.