The object of this contract is the application, qualification and certification of the language level tests in English prepared by the bidding entity that is awarded the contract, calibrated and adapted to the international standards of the Common European Framework of Reference for Languages ​​of the Council of Europe ( CEFR, hereinafter) that must be carried out in an estimated number of 18,997 students enrolled in the 6th year of Primary Education in the 2021-2022 academic year, enrolled in a total of 366 bilingual public schools, distributed in 812 groups.