Ombrosa has become an Examination Centre for SAT Exams: these are entrance examinations that are required by American universities. They have also been adopted by certain European universities. The June session is reserved for "SAT subject tests" only and the October session for SAT exams with or without an essay. Enrolments can be made by accessing the following web site https://collegereadiness.collegeboard.org/sat/, which will also provide information about exam content, enrolment deadlines etc.
The SAT test can be taken several times. It is advisable to make a first attempt and then try again if a better score is required. It is also advisable to find out which universities require these tests, which subjects are required and what sort of score is expected. This information should be available on individual university web sites.