The American Degree Program (more commonly known as ADP) is a direct entry into university level after SPM or O-Level. Unlike other Pre-University programmes such as A-Level, SAM, and STPM, enrolling into ADP would mean that you are already pursuing your degree.
ADP programmes in Malaysia usually have a credit-transfer option, which means that you can transfer to a university overseas to finish your degree after studying anywhere between 1- 3 years in Malaysia.
Most students will transfer to universities in the USA to complete their degree.