| Country | Name | Code | Date | Source |
| Albania | Constitution of Albania | 8417 | 21/10/1998 | https://www.gjk.gov.al |
| Austria | Federal Constitution Law | 1/1930 | 02/01/1930 | https://www.ris.bka.gv.at/ |
| Croatia | The Constitution of the Republic of Croatia | | 15/01/2014 | www.usud.hr/sites |
| Czech Republic | Constitution of the Czech Republic | No. 1/1993 Sb. | 16.12.1992 | https://www.usoud.cz |
| France | Constitution of France | | 04.10.1958 | https://www.conseil-constitutionnel.fr |
| Greece | The Constitution of Greece as revised by the parliamentary resolution of April 6th 2001 | | 6 April 2001 | |
| Germany | Basic Law for the Federal Republic of Germany | | 23/05/1949 | https://www.gesetze-im-internet.de/englisch_gg/index.html |
| Italy | Constitution of the Italian Republic | | 27/12/1947 | www.cortecostituzionale.it |
| Italy | Constitutional Law (Amendments to Articles 56, 57 and 59) | No. 1 | 19/10/ 2020 | www.cortecostituzionale.it |
| Netherlands | The Constitution of the Kingdom of the Netherlands | | 24.08.1815 | https://www.government.nl |
| Norway | The Constitution of the Kingdom of Norway | | 17.05.1814 | https://lovdata.no/dokument |
| Portugal | Constitution of the Portuguese Seventh Revision 2005 | | 02/04/1976 | www.parlamento.pt/sites |
| Slovenia | The Constitution of the Republic of Slovenia | 33/91-I | 23.12.1991 | https://www.us-rs.si/legal-basis |
| Spain | Spanish Constitution | | 31.10.1978 | https://www.boe.es |
| Turkey | Constitution of The Republic of Turkey (As amended on July 23, 1995; Act No. 4121) | | | https://global.tbmm.gov.tr/ |
