The City of Hanover joins the OCA as its newest member

On August 02, 2021, the city of Hanover joined the OCA. On behalf of our members, we warmly welcome our new member and look forward to a good cooperation!

Postponement of OCA Membership Meeting and Academy to May 2022.

Die diesjährige OCA-Mitgliederversammlung sowie auch die OCA-Akademie finden im Mai 2022 in Köln statt. The usual February dates have been rescheduled accordingly, as in the current situation a physical meeting in February cannot be planned.…