French Guiana is not a separate territory but is both an overseas région and overseas department of France, with the same government institutions as areas on the French mainland. The administrative center is Cayenne. The President of France appoints a prefect (resident at the prefecture building in Cayenne) as his representative to head the local government of French Guiana. The Assembly of French Guiana replaced the General Council and the Regional Council in 2016. As of 2020 the prefect is Thierry Queffelec. The President of the Guianese Assembly since 2021 is Gabriel Serville.