At your English institute, school, university, etc.
If depends on the exam you’re taking. Three components, (reading, listening and language use) 59 dollars US. Five components (reading, listening, language use, speaking and writing) 75 dollars US.
Results are ready five business days after taking the exam.
Our exams are English proficiency exams aimed at specific CEFR levels, hence this is not their primary purpose. However, they are accepted at institutions that have become GEP English exams testing centers.