This is the 727th most frequent French word.
régionale
Relating to a region.
Here, 'régionale' is used as an adjective to describe 'organisation', indicating its scope.
Elle travaille pour une organisation régionale.
She works for a regional organization.
The word 'régionale' here characterizes 'cuisine', meaning specific to a certain region.
La cuisine régionale varie beaucoup en France.
Regional cuisine varies greatly in France.
'Régional' (masculine variation of 'régionale') describes 'développement', referring to policies or activities specific to regions.