As an approximate guideline, to be considered an international school the institute will: be accredited by a foreign body (eg IBO), or; offer internationally recognized qualifications (eg IGCSE), or; cater to expatriate families or locals with an interest in studying abroad, or; use an international 'style' of instruction, and promote an international 'outlook'.

Institutes that simply offer teaching using English (or other foreign language) as the medium of instruction are not necessarily international schools.

Websites submitted here must be related to international schools and in English. Bilingual sites are acceptable, however sites only in other languages should be submitted to the appropriate World subcategory.