The following is a non-exhaustive list of standardized tests that assess a person's language proficiency of a foreign/secondary language. Various types of such exams exist per many languages—some are organized at an international level even through national authoritative organizations, while others simply for specific limited business or study orientation.
According to the Ministero degli Esteri (Italian Foreign Affairs), there are four officials Italian certifications approved CLIQ (Certificato di Lingua Italiana di Qualità): CILS, CELI, PLIDA and .IT ROMA TRE