"To certify the exams" means to officially confirm or attest that the exams have been reviewed and approved as valid and genuine by an authoritative body or organization. Full definition
Why are our 9 year olds subjected to state exams that last as long or are longer than entrance and certifying exams for adult professionals who make life and death decisions? (washingtonpost.com)
Proof of having passed a national certifying exam approved by the boards. (doh.sd.gov)
She passed the Court of Master Sommeliers Certified Exam in 2006 and more recently completed the Wine and Spirits Education Trust Diploma Program. (2016.pbfw.com)