Chartwell International School is accredited by the Ministry of Education, Science and Technological Development of Republic of Serbia and registered as an international school by the Commercial Court of Serbia.
Chartwell students currently take the Cambridge I.G.C.S.E (International General Certificate of Education) examinations and AS and A level exams. The school is not only registered as a Cambridge International School but is also registered as a Cambridge Examination Centre for any student sitting those examinations whether they are from Chartwell or other schools.
Chartwell is an affiliate of COBIS. Affiliate members are schools outside the United Kingdom that have satisfied the executive committee that they have adequate standards of quality, which follow a British Curriculum.