In addition, "Modern Foreign Languages" is a compulsory component in the state education system. At least one language is studied until the end of Key Stage 3. Particular schools may require younger students to study additional languages, and they may be given the option to continue these. Schools are required to teach a program of languages according to local and national guidelines. From 2010, all primary school pupils in Key Stage 2 (aged 7 – 11) will be entitled to some teaching of a modern foreign language. English is taught to immigrant adults and youths as necessary.