diff --git a/apps/web/process/gibdd/reactions.ts b/apps/web/process/gibdd/reactions.ts
index 8d574d2..81f80d1 100644
--- a/apps/web/process/gibdd/reactions.ts
+++ b/apps/web/process/gibdd/reactions.ts
@@ -377,6 +377,24 @@ export function common({ store, apolloClient, queryClient }: ProcessContext) {
     }
   );
 
+  reaction(
+    () => $calculation.$values.getValues(['objectRegistration']),
+    async ({ objectRegistration }) => {
+      const {
+        data: { evo_regions },
+      } = await apolloClient.query({
+        query: CRMTypes.GetRegionsDocument,
+      });
+
+      if (objectRegistration === 100_000_001) {
+        const regions = evo_regions?.filter((x) => x?.evo_businessunit_evolution === true);
+        $calculation.element('selectRegionRegistration').setOptions(normalizeOptions(regions));
+      } else {
+        $calculation.element('selectRegionRegistration').setOptions(normalizeOptions(evo_regions));
+      }
+    }
+  );
+
   const { getData } = helper({ apolloClient });
 
   reaction(