| | País | Fecha de ratificación/adhesión | Mecanismo Nacional de Prevención (MNP) | Comunicación de los Estados Partes sobre la designación del MNP | |
| 1 | Afghanistan | 17.04.2018 | NO NPM | | |
| 2 | Albania | 01.10.2003 | People's Advocate | Correspondencia | |
| 3 | Argentina | 15.11.2004 | Comité Nacional para la Prevención de la Tortura y Otros Tratos o Penas Crueles, Inhumanos o Degradantes | Correspondencia | |
| 4 | Armenia | 14.09.2006 | Human Rights Defender of the Republic of Armenia | Correspondencia | |
| 5 | Australia | 21.12.2017 | Australian NPM | Correspondencia 1-2 | |
| 6 | Austria | 04.12.2012 | Austrian Ombudsman Board | Correspondencia | |
| 7 | Azerbaiyán | 28.01.2009 | The Commissioner for Human Rights (Ombudsman) | Correspondencia | |
| 8 | Bangladesh | 17.07.2025 | NO NPM | | |
| 9 | Belice | 04.09.2015 | NO NPM | | |
| 10 | Benin | 20.09.2006 | Commission béninoise des droits de l’homme | | |
11 | Bolivia | 23.05.2006 | Servicio para la Prevención de la Tortura – SEPRET | Correspondence Annexes: 1-2-3-4 | |
| Defensoría del Pueblo del Estado Plurinacional de Bolivia | Correspondencia | Correspondence |
| 12 | Bosnia y Herzegovina | 24.10.2008 | The Institution of Human Rights Ombudsman of Bosnia and Herzegovina | Correspondencia | |
| 13 | Brasil | 12.01.2007 | Mecanismo Nacional de Prevenção e Combate à Tortura (MNPCT) | Correspondencia | |
| 14 | Bulgaria | 01.06.2011 | Ombudsman of the Republic of Bulgaria | Correspondencia | |
| 15 | Burkina Faso | 07.07.2010 | Commission Nationale des Droits de l'Homme | Correspondencia | |
| 16 | Burundi | 18.10.2013 | NO NPM | | |
| 17 | Cabo Verde | 01.04.2016 | Commission Nationale des Droits Humains et Citoyenneté | Correspondencia 1 | |
| 18 | Camboya | 30.03.2007 | National Committee against Torture and other Cruel, Inhuman or Degrading Treatment or Punishment | Correspondencia | |
| 19 | República Centroafricana | 11.10.2016 | NO NPM | | |
| 20 | Chile | 12.12.2008 | Mecanismo Nacional de Prevención de Tortura | Correspondencia | |
| 21 | Colombia | 10.11.2025 | NO NPM | | |
| 22 | Congo | 26.04.2024 | NO NPM | | |
| 23 | Costa Rica | 01.12.2005 | Defensoria de los Habitantes | Correspondencia 1-2 | |
| 24 | Côte d’Ivoire | 01.03.2023 | NO NPM | | |
| 25 | Croacia | 25.04.2005 | Ombudsperson | Correspondencia | |
| 26 | Chipre | 29.04.2009 | Commissioner of Administration/Ombudsman | Correspondencia | |
| 27 | Czechia | 10.07.2006 | Public Defender of Rights | Correspondencia and Annex I | |
| 28 | República Democrática del Congo | 23.09.2010 | NO NPM | | |
| 29 | Dinamarca (y Groenlandia) | 25.06.2004 | The Danish Parliamentary Ombudsman Greenland's Ombudsperson | Correspondencia Correspondencia | |
| 30 | Ecuador | 20.07.2010 | Defensoría del Pueblo | | |
| 31 | Estonia | 18.12.2006 | Office of the Chancellor of Justice (Ombudsman) | Correspondencia | |
| 32 | Finlandia | 08.10.2014 | The Parliamentary Ombudsman of Finland | Correspondencia | |
| 33 | Francia | 11.11.2008 | Contrôleur Général des lieux de privation de liberté | Correspondencia | |
| 34 | Gabón | 22.09.2010 | NO NPM | | |
| 35 | Georgia | 09.08.2005 | Office of the Public Defender | Correspondencia | |
| 36 | Alemania | 04.12.2008 | Agencia Nacional para la Prevención de la Tortura compuesto por la Agencia Federal para la Prevención de la Tortura y la Comisión Conjunta de los Estados Federados | Correspondencia | |
| 37 | Ghana | 23.09.2016 | NO NPM | | |
| 38 | Grecia | 11.02.2014 | The Greek Ombudsman | Correspondencia | |
| 39 | Guatemala | 09.06.2008 | Mecanismo Nacional de Prevención de la Tortura | Correspondencia Not for public distribution Correspondencia and Annex | |
| 40 | Honduras | 23.05.2006 | National Committee for the Prevention of Torture | Correspondencia Information contained in the public SPT visit report | |
| 41 | Hungría | 12.01.2012 | Commissioner for Fundamental Rights | Correspondencia | |
| 42 | Islandia | 20.02.2019 | Althing Ombudsman | Correspondencia | |
| 43 | Italia | 25.04.2014 | National Guarantor for the Rights of Persons Deprived of Liberty | Correspondencia | |
| 44 | Kazajstán | 22.10.2008 | Commissioner for Human Rights | Correspondencia | |
| 45 | Kirguistán | 29.12.2008 | National Center on Prevention of Torture and other Cruel, Inhuman or Degrading Treatment or Punishment | Correspondencia | |
| Institución del Akyikatchy (Defensor del Pueblo) de la República Kirguisa | Correspondencia | |
| 46 | Letonia | 10.12.2021 | Ombudsman’s Office | Correspondencia | |
| 47 | Líbano | 22.12.2008 | Sous-comité pour la prévention de la Torture | Correspondencia | |
| 48 | Liberia | 22.09.2004 | NO NPM | | |
| 49 | Liechtenstein | 03.11.2006 | Corrections Commission | Correspondencia | |
| 50 | Lituania | 20.01.2014 | Seimas Ombudsmen's Office | Correspondencia | |
| 51 | Luxemburgo | 19.05.2010 | Médiateur du Grand Duché de Luxembourg | Correspondencia | |
| 52 | Madagascar | 21.09.2017 | Commission Nationale Indépendante des Droits de l’Homme | Correspondencia | |
| 53 | Maldivas | 15.02.2006 | Human Rights Commission | Correspondencia Public SPT Report on the first periodic visit to Maldives, CAT/OP/MDV/1 | |
| 54 | Malí | 12.05.2005 | Commission nationale des Droits de l'Homme | Correspondencia | |
| 55 | Malta | 24.09.2003 | Board of Visitors for Detained Persons and the Board of Visitors of the Prisons | Correspondencia | |
| 56 | Mauritania | 03.10.2012 | Mécanisme national de prévention de la torture | Correspondencia | |
| 57 | Mauricio | 21.06.2005 | National Human Rights Commission | Correspondencia Information contained in the confidential SPT visit report | |
| 58 | México | 11.04.2005 | Comisión Nacional de los Derechos Humanos | Correspondencia Information contained in the public SPT visit report | |
| 59 | Mongolia | 12.02.2015 | National Human Rights Commission of Mongolia | Correspondencia | |
| 60 | Montenegro | 06.03.2009 | Protector of Human Rights and Freedoms, Ombudsman | Correspondencia | |
| 61 | Marruecos | 24.11.2014 | Conseil National des Droits de l’Homme (CNDH) | Correspondencia | |
| 62 | Mozambique | 01.07.2014 | National Human Rights Commission of Mozambique | . | |
| 63 | Países Bajos | 28.09.2010 | Four national inspectorate bodies comprised the Dutch NPM, and were coordinated by the Inspectorate of Security and Justice Netherlands Institute for Human Rights | Correspondencia Correspondencia | |
| 64 | Nauru | 24.01.2013 | NO NPM | | |
| 65 | Nueva Zelanda | 14.03.2007 | Human Rights Commission (central NPM) The Ombudsman's Office The Children's Commissioner The Police Complaints Authority The Judge Advocate General | Correspondencia | |
| 66 | Nicaragua | 25.02.2009 | Procuraduría para la Defensa de los Derechos Humanos | Correspondencia | |
| 67 | Níger | 07.11.2014 | Commission Nationale des Droits Humains | | |
| 68 | Nigeria | 27.07.2009 | National Human Rights Commission | | |
| 69 | Macedonia del Norte | 13.02.2009 | Ombudsman of the former Yugoslav Republic of Macedonia The non-governmental organizations registered in the State Party and organizations which have acquired the status of humanitarian organizations in the State Party, may perform some of the competences of the NPM, in agreement with, and with prior consent of the Ombudsman. | Correspondencia | |
| 70 | Noruega | 27.06.2013 | Parliamentary Ombudsman for Public Administration | Correspondencia | |
| 71 | Panamá | 02.06.2011 | Ombuds Institution | | |
| 72 | Paraguay | 02.12.2005 | Comisión Nacional de Prevención de la Tortura y otros tratos o penas crueles, inhumanos o degradantes | See CAT/OP/PRY/2/Add.1, para. 6 Correspondencia | |
| 73 | Perú | 14.09.2006 | Mecanismos Nacional De Prevencion de la Tortura - Defensoria del Pueblo de Perú | Correspondencia | |
| 74 | Filipinas | 17.04.2012 | NO NPM | | |
| 75 | Polonia | 14.09.2005 | The Commissioner for Civil Rights Protection (Ombudsman) | Correspondencia | |
| 76 | Portugal | 15.01.2013 | Provedor de Justiça (Ombudsman) | Correspondencia | |
| 77 | República de Moldova | 24.07.2006 | Centre for Human Rights (Ombudsman) in combination with the Consultative Council | Correspondencia Correspondencia Annexes: 1-2 | |
| 78 | Rumanía | 02.07.2009 | The People's Advocate | Correspondencias 1-2 | |
| 79 | Rwanda | 30.06.2015 | National Commission for Human Rights | Correspondencia | |
| 80 | Senegal | 18.10.2006 | Observateur national des lieux de privation de liberté | Correspondencia | |
| 81 | Serbia | 26.09.2006 | Protector of Citizens (Ombudsman) | Correspondencias 1-2 | |
| 82 | Eslovakia | 19.09.2023 | Public Defender of Rights Office of the Commissioner for Persons with Disabilities Office of the Commissioner for Children | Correspondencia | |
| 83 | Eslovenia | 23.01.2007 | Human Rights Ombudsman | Correspondencia | |
| 84 | Sudáfrica | 20.06.2019 | South African Human Rights Commission | | |
| 85 | Sudán del Sur | 30.04.2015 | NO NPM | | |
| 86 | España | 04.04.2006 | El Defensor del Pueblo | Correspondencia | |
| 87 | Sri Lanka | 05.12.2017 | Human Rights Commission | Correspondencia | |
| 88 | Estado de Palestina | 29.12.2017 | NO NPM | | |
| 89 | Suecia | 14.09.2005 | Parliamentary Ombudsman y el Chancellor of Justice | Correspondencia | |
| 90 | Suiza | 24.09.2009 | Commission nationale de prévention de la torture | Correspondencia | |
| 91 | Togo | 20.07.2010 | Commission Nationale des Droits de l'Homme | Correspondencia | |
| 92 | Túnez | 29.06.2011 | l'Instance Nationale pour la Prévention de la Torture | Correspondencia | |
| 93 | Türkiye | 27.09.2011 | Human Rights and Equality Institution of Türkiye | Correspondencia | |
| 94 | Reino Unido de Gran Bretaña e Irlanda del Norte | 10.12.2003 | The UK NPM is comprised of 21 separate bodies, is led by a NPM chair and coordinated by HMIP. The Isle of Man NPM has three members. | Correspondencias 1-2-3-4 | |
| 95 | Ucrania | 19.09.2006 | Parliament Commissioner for Human Rights | Correspondencia | |
| 96 | Uruguay | 08.12.2005 | Institución Nacional de Derechos Humanos | Correspondencia | |