The European Convention on the International Validity of Criminal Judgments is a 1970 treaty of the Council of Europe whereby the states that agree to the treaty recognise the validity of criminal judgments and sentences handed down in other states that have ratified the treaty. The treaty also allows penal sentences to be served in the country of a person's residence if both the sentencing country and the country of residence are parties to the treaty. The following states have ratified the Convention: