Chelmos-Vouraikos Management Body was established together with other 24 Management Bodies under Law 3044/2002 (Government Gazette 197 / 27-8-2002), which established 25 Protected Areas with a Management Body. To the 25 Protected Areas, two areas that were already protected according to Laws 1650/1986 and 2742/1999 were added, the National Marine Park of Zakynthos and the Schinias-Marathon National Park. Law 3044/2002 also included maps with the outer boundaries of each of the 25 Protected Areas.

Chelmos-Vouraikos Management Body was established in 2002, was staffed in 2007 and is responsible for the conservation, protection and management of the Protected Area designated pursuant to Law 4519/2018 (Government Gazette A 25 - 20.02.2018).