Three hours. According to Article 11 of the query "Education Standard for Full Score of Illegal Scoring and Verification Education for Motor Vehicle Drivers", it can be known that the traffic management department of the public security organ should strictly implement the requirements for full score of drivers and the time limit for verification education. The driver's certified education time shall not be less than 3 hours. For drivers of large and medium-sized vans and school buses who have accumulated scores of 9 to 1 1 in a scoring cycle, and drivers who have other quasi-driving types and bear the same responsibility for traffic accidents and have not had their driving licenses revoked, the form of on-site verification education should be adopted.