AAMVA congratulates Ohio for successfully implementing the Commercial Driver's License Information System (CDLIS) solution to connect to the Drug and Alcohol Clearinghouse (DACH) on November 18, 2024. All implementation activities have been completed, and CDLIS and State-to-State (S2S) services are now fully operational. Ohio is now able to obtain the current prohibition status for a driver from the Clearinghouse and will also receive notification each time any of their driver's has a change in prohibition status at the Clearinghouse. If you have any questions or concerns, please contact us.