AAMVA congratulates South Dakota on successfully implementing Commercial Driver License Information System (CDLIS) solution to connect to the Drug and Alcohol Clearing House (DACH) on September 30, 2025. All migration activities have been completed. CDLIS and State-to-State (S2S) services are fully operational now. South Dakota 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. Read more here.