Since the publication of the CEFR in 2001, policymakers, researchers and teachers in foreign language education around the world have started to use the framework to review their own systems and practices. This includes the structure and content of language syllabuses, textbooks and teaching materials, as well as instructional and assessment methods. The publication of the Companion Volume (CEFR/CV) in 2020 will further concretise the principles of the CEFR and re-propose a new framework for language teaching, including sign languages, mediation skills and online communication. The application of the CEFR, with its extremely broad scope, can sometimes be a hindrance to a sound understanding of its principles and fundamental concepts, which can lead to applications based on superficial knowledge. It is also true that it is difficult to implement language education policies that cover the full range of the CEFR.

In this talk, I will give an overview of the CEFR and the CEFR/CV and discuss the implications of using the CEFR as a common framework for all languages. As an example of focused applications, I will argue what the future of intelligent CALL based on the selection and arrangement of language materials by the CEFR levels would be like. Finally, as Principal Investigator of the CEFR-J, a localization project of the CEFR in Japan, I would like to consider what is needed for the CEFR to truly take root in foreign language education in Japan.