Is there a central location where states are supposed to send their Workforce Information Database data?
No. All states are required to create and populate their own Workforce Information Database in whatever platform they choose (e.g. SQL Server, Oracle, etc.). However, the only exception at this point is licensed occupational data that is stored in the license, and licauth tables. This information is required to be sent to the National Crosswalk Service Center as your data is updated (at least biennially). They, in turn, send quarterly updates to the folks at ACInet for inclusion on their site.