Here is some regulatory information regarding seaweed and microalgae in France and Europe.
Seaweed regulatory information Nov 2014
Statut règlementaire en France et en Europe Synthèse CEVA 2019 (French version)
Regulatory status in France and Europe 2019 update (English version)
The 2019 update is provided by CEVA. For more information on CEVA see www.ceva-algues.com/