As a central administrative authority in the field of the protection of classified information, the Office shall be responsible for preparing proposals for the negotiation of contracts for the exchange and reciprocal protection of classified information.

The Office shall base its prioritisation in this area on the practical need to exchange classified information with specific States and to ensure adequate protection of such information. Negotiating agreements on the protection of classified information is fully in line with the Czech Republic's foreign policy interests, as well as the Czech Republic's obligations under EU and NATO membership.

Agreements on the exchange and reciprocal protection of classified information shall govern the arrangements for the release of classified information between the Czech Republic and the other Contracting Party, the protection of classified information released and the cooperation of the administrative authorities responsible for its protection. Since those treaties govern matters reserved to the law and the rights and obligations of persons, they are treaties whose ratification requires the consent of both chambers of Parliament, in accordance with Article 49 of the Constitution. Within the meaning of the Government Directive for the Negotiation, National Negotiation, Implementation and Termination of International Treaties, approved by Government Resolution No 131 of 11 February 2004, these are international agreements of the presidential category.

State/Organisation Title of the agreement and details Language versions
Albania Agreement between the Government of the Czech Republic and the Council of Ministers of Albania on the exchange and reciprocal protection of classified information (77/2012 Sb.m.s.), validity 1.8.2012 Czech, Albanian, English
Azerbaijan Agreement between the Government of the Czech Republic and the Government of the Republic of Azerbaijan on the exchange and reciprocal protection of classified information (40/2012 Sb.m.s.), validity 1.4.2012 Czech / English
Bosnia and Herzegovina Agreement between the Czech Republic and Bosnia and Herzegovina on the exchange and reciprocal protection of classified information (64/2011 Sb.m.s.), validity 1.7.2011 Czech, Bosnian/
Croatian/
Serbian
, English
Bulgaria Agreement between the Czech Republic and the Republic of Bulgaria on the reciprocal protection and exchange of classified information (34/2008 Sb.m.s.), validity 9.4.2008 Czech, Bulgarian, English
Montenegro Agreement between the Government of the Czech Republic and the Government of Montenegro on the exchange and reciprocal protection of classified information (53/2011 Sb.m.s.), validity 1.6.2011 Czech, English
Estonia Agreement between the Czech Republic and the Republic of Estonia on the exchange and reciprocal protection of classified information (73/2012 Sb.m.s.), validity 1.8.2012 Czech, Estonian, English
The European Union Agreement between the Member States of the European Union, meeting within the Council, on the protection of classified information exchanged in the interest of the European Union (9/2020 Sb.m.s.), in force 1.12.2015 Czech
Finland Agreement between the Czech Republic and the Republic of Finland on the exchange and reciprocal protection of classified information (67/2009 Sb.m.s.), valid 1.10.2009 Czech, Finnish, English
France Agreement between the Government of the Czech Republic and the Government of the French Republic on the reciprocal transfer and protection of classified information (43/2005 Sb.m.s.), in force 16.4.2005 Czech, French, Additional information English/French
Georgia Agreement between the Czech Republic and Georgia on the exchange and reciprocal protection of classified information (112/2009 Sb.m.s.), valid 16.10.2009 Czech, Georgian, English
Croatia Agreement between the Government of the Czech Republic and the Government of the Republic of Croatia on the reciprocal protection of classified information (56/2011 Sb.m.s.), validity 1.7.2011 Czech, Croatian, English
Italy Security Agreement between the Government of the Czech Republic and the Government of the Italian Republic on Mutual Protection of Classified Information (6/2005 Sb.m.s.), valid 1.12.2004 Czech, Italian
Israel Security Agreement between the Ministry of Defence of the State of Israel and the Ministry of Defence of the Czech Republic, effective March 8, 2001 Contract stored in the NBÚ archives
Cyprus Agreement between the Czech Republic and the Republic of Cyprus on the exchange and reciprocal protection of classified information (76/2012 Sb.m.s.), validity 1.9.2012 Czech, Greek, English
Lithuania Agreement between the Government of the Czech Republic and the Government of the Republic of Lithuania on the reciprocal protection of classified information (69/2001 Sb.m.s.), validity 1.6.2001 Czech, Lithuanian, English
Latvia Agreement between the Government of the Czech Republic and the Government of the Republic of Latvia on the reciprocal protection of classified information (1/2001 Sb.m.s.), validity 1.1.2001 Czech, Latvian, English
Luxembourg Security Agreement between the Government of the Czech Republic and the Government of the Grand Duchy of Luxembourg on the reciprocal exchange and protection of classified information (55/2013 Sb.m.s.), validity 1.8.2013 Czech, English
Hungary Agreement between the Czech Republic and Hungary on the exchange and reciprocal protection of classified information (62/2013 Sb.m.s.), valid 1.9.2013 Czech, Hungarian, English
Macedonia Agreement between the Czech Republic and the Republic of Macedonia on the exchange and reciprocal protection of classified information (71/2009 Sb.m.s.), valid 1.10.2009 Czech, Macedonian, English
NATO Agreement between the Contracting Parties to the North Atlantic Treaty on the Security of Information (75/2001 Sb.m.s.), valid 5.12.1999 Czech
Germany Agreement between the Government of the Czech Republic and the Government of the Federal Republic of Germany on the reciprocal protection of classified information (95/2001 Sb.m.s.), validity 1.10.2001 Czech, German
Norway Agreement between the Government of the Czech Republic and the Government of the Kingdom of Norway on the exchange and reciprocal protection of classified information (72/2009 Sb.m.s.), valid 1.10.2009 Czech, Norwegian, English
OCCAR Agreement between the Czech Republic and the Organisation for Arms Cooperation on the exchange and mutual protection of classified information (29/2023 Sb.m.s.), valid 1.1.2024 Czech, English
Poland Agreement between the Government of the Czech Republic and the Government of the Republic of Poland on the reciprocal protection of classified information (98/2005 Sb.m.s.), validity 5.10.2005 Czech, Polish
Portugal Agreement between the Czech Republic and the Portuguese Republic on the exchange and reciprocal protection of classified information (12/2009 Sb.m.s.), validity 15.11.2008 Czech, Portuguese, English
Austria Agreement between the Government of the Czech Republic and the Austrian Federal Government on the exchange and reciprocal protection of classified information (69/2009 Sb.m.s.), valid 1.10.2009 Czech, German, English
Romania Agreement between the Government of the Czech Republic and the Government of Romania on the reciprocal protection of exchanged classified information (43/2011 Sb.m.s.), validity 1.7.2011 Czech, Romanian, English
Russia Agreement between the Government of the Czech Republic and the Government of the Russian Federation on the reciprocal protection of classified information (118/2003 Sb.m.s), validity 25.9.2009 Czech, Russian
Greece Security Agreement between the Government of the Czech Republic and the Government of the Hellenic Republic on Mutual Protection of Exchanged Classified Information (72/2012 Sb.m.s.), validity 1.7.2011 Czech / English
Slovakia Agreement between the Government of the Czech Republic and the Government of the Slovak Republic on Mutual Protection of Classified Information (127/2005 Sb.m.s), validity 3.12.2005 Czech, Slovak
Slovakia – amendment Agreement between the Government of the Czech Republic and the Government of the Slovak Republic amending the Agreement between the Government of the Czech Republic and the Government of the Slovak Republic on the reciprocal protection of classified information (70/2009 Sb.m.s.), in force 1.10.2009 Czech, Slovak
Slovenia Agreement between the Czech Republic and the Republic of Slovenia on the exchange and reciprocal protection of classified information (110/2009 Sb.m.s.), valid 1.11.2009 Czech, Slovenian, English
United Kingdom of Great Britain and Northern Ireland Security agreement on the protection of classified information in the field of defence (18/2004 Sb.m.s), validity 1.2.2004 Czech, English, Additional information
Serbia Agreement between the Czech Republic and the Republic of Serbia on the exchange and reciprocal protection of classified information (40/2015 Sb.m.s.), validity 1.6.2015 Czech, English
Spain Agreement between the Czech Republic and the Kingdom of Spain on the exchange and reciprocal protection of classified information (57/2011 Sb.m.s.), validity 1.7.2011 Czech, Spanish, English
Switzerland Agreement between the Government of the Czech Republic and the Swiss Federal Council on the exchange and mutual protection of classified information (86/2011 Sb.m.s.), valid 1.9.2011 Czech, English
Sweden Security Agreement between the Czech Republic and the Kingdom of Sweden on the Exchange and Reciprocal Protection of Classified Information (68/2009 Sb.m.s.), valid 11.8.2009 Czech, English, Additional information
Ukraine Agreement between the Government of the Czech Republic and the Cabinet of the Republic of Ukraine on the protection of classified information (137/2004 Sb.m.s.), validity 1.12.2004 Czech, Ukrainian, English
USA Agreement between the Government of the Czech Republic and the Government of the United States of America on measures for the protection of classified military information (12/2008 Sb.m.s.), in force 19.9.1995 Czech, English
US – change Agreement between the Government of the Czech Republic and the Government of the United States of America amending the Agreement between the Government of the Czech Republic and the Government of the United States of America concerning measures for the protection of classified military information (13/2008 Sb.m.s.), in force 31.8.2007 Czech, English

Under the authority of the Department of Defense, agreements have been negotiated with South Africa, the Federal Republic of Germany and the United States of America for the reciprocal protection of military classified information.