Analysis ·

Everyone signs. Ratifying takes about three years.

Across nearly six thousand cases where a state both signed and ratified a UN treaty, the middle one took 1,008 days -- and some of the newest conventions have dozens of signatures and almost no parties at all.

Signing a treaty and being bound by one are different acts. A signature says a government intends to seek ratification; ratification is what happens after the domestic legislature, or the constitutional court, or the next election has had its say. The gap between the two is where international law either arrives or quietly does not.

Across 5,980 cases in this record where a state both signed and later ratified, the median gap is 1,008 days — about 2.8 years.

Median days from signature to ratification, by the decade of signature
Signed inCases Median daysYears
1940s262 1,202 3.3
1950s405 1,315 3.6
1960s576 1,470 4.0
1970s582 868 2.4
1980s632 1,090 3.0
1990s1,531 1,016 2.8
2000s1,371 904 2.5
2010s453 800 2.2
2020s112 490 1.3

Read the recent decades with care. This table can only count pairs where ratification has already happened, so the closer a decade is to now, the more it is missing the slow cases that have not finished yet. The apparent acceleration is partly real and partly that a treaty signed in 2021 and ratified in 2035 cannot appear in a table compiled today. The older decades are the trustworthy ones.

The treaties almost everyone has joined

TreatyParties in this record
Vienna Convention for the Protection of the Ozone Layer198
United Nations Convention to Combat Desertification in those Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa197
Convention on the Rights of the Child196
Convention on Biological Diversity196
United Nations Convention against Transnational Organized Crime195
Constitution of the World Health Organization194

Near-universal ratification clusters around the environment and the child — instruments whose obligations are framed as cooperation rather than as constraint. The pattern is not that these are unimportant; it is that they ask states for programmes rather than for jurisdiction.

The treaties with signatures and no parties

TreatySigned but not ratified
United Nations Convention against Cybercrime; Strengthening International Cooperation for Combating Certain Crimes Committed by Means of Information and Communications Technology Systems and for the Sharing of Evidence in Electronic Form of Serious Crimes78
Agreement under the United Nations Convention on the Law of the Sea on the Conservation and Sustainable Use of Marine Biological Diversity of Areas beyond National Jurisdiction55
United Nations Convention on International Settlement Agreements Resulting from Mediation42
International Convention for the Protection of All Persons from Enforced Disappearance39
Tampere Convention on the Provision of Telecommunication Resources for Disaster Mitigation and Relief Operations31
United Nations Convention on the International Effects of Judicial Sales of Ships29

Two kinds of instrument end up here, and they should not be read the same way. Some are simply new: a convention opened for signature in the last two or three years will collect signatures long before any parliament schedules a ratification bill, and its position on this table says nothing except that it is recent. Others have been open for years, and their signature-to-ratification gap is the finding — a state that signs and does not return is making a statement in a language diplomats read fluently.

What the record is mostly about

ChapterActions recorded
Human Rights2,144
Environment1,689
Penal Matters1,647
Disarmament1,154
Privileges And Immunities, Diplomatic And Consular Relations, Etc1,086
International Trade And Development912

What these counts are. Actions recorded in the Secretary-General’s treaty depositary status lists, one row per state per treaty. “Parties in this record” counts states with a ratification, acceptance, approval or accession we have collected, which is not always identical to the depositary’s own stated participant total; where a treaty states its own totals we check ours against them. Accessions have no signature date, so they are absent from the lag calculation entirely — that figure describes states that signed first and ratified later, which is the sequence the article is about.

Treaties and their parties

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