The Common European Framework of Reference for Languages (CEFR) is an international standard used to describe language skills. It consists of six levels, ranging from A1 (beginner) to C2 (proficiency). These levels allow for the assessment and certification of foreign language skills in a uniform manner, facilitating the understanding of language abilities across different countries and institutions. The CEFR is commonly used in training programs, language tests, and school curricula to ensure accurate and consistent assessment of language skills.