Aviation English and communication exam
Aviation English and aviation communication exams conducted in accordance with EASA requirements have lifetime validity. You do not have to revalidate nor renew it. For instrument rating IFR pilots, the EASA IFR English exam (IFR English) is required only before its first flight crew license endorsement.
A similar process comes with VFR communication and EASA VFR English. VFR communication exam, so-called the EASA VFR English is required only before the first solo flight - as a general rule in the private pilot - PPL flight training.
On completion of the EASA aviation English exam, you become a holder of license to communicate in a given language in which you took the language proficiency exam - the aviation English exam.