The Nomenclature des niveaux de formation (in English national classification of levels of training) is used, notably for statistical purposes, to measure the training completed by somebody. Two classifications are commonly used in France: The "nomenclature des niveaux de formation" (national classification of levels of training), established in 1969 by the "Commission statistique nationale" (national statistical commission), and the International Standard Classification of Education (ISCED), validated by UNESCO in 1997 and used for international comparisons.