In order to become certified, you need to register with Google Partners and first pass the Adwords fundamental exam which consists of just over 100 questions on the Adwords dashboard, campaign best practices and bidding techniques – the passing rate is 80%.
After completing the fundamentals exam, you then need to take one of the advanced exams in either search, display or video specialities.
Upon passing one advanced exam, you will then be recognised as a Google Certified Individual.
You can sign up for my free Adwords Certification course here and receive all my top certification tips directly to your inbox over a 5 day period.