diff --git a/setup/setup_sis100_cfv.C b/setup/setup_sis100_cfv.C
index 0e2c0a2395f1f10305034e686c0f9773a15131c4..901b6dacc5642aa73b3f7e58fd20e55d81f70b60 100644
--- a/setup/setup_sis100_cfv.C
+++ b/setup/setup_sis100_cfv.C
@@ -5,6 +5,8 @@
  **
  **/
 
+
+// 2024-11-25 - EC - Reduced CFV TRD 1D 
 // 2024-11-21 - EC - Branched from sis100_electron
 
 void setup_sis100_cfv()
@@ -15,7 +17,7 @@ void setup_sis100_cfv()
   TString mvdGeoTag       = "v20d_tr";
   TString stsGeoTag       = "v22d";
   TString richGeoTag      = "v23a";
-  TString trdGeoTag       = "v20b_1e";
+  TString trdGeoTag       = "v23a_1e"; // CFV TRD 1D (reduced acceptance)
   TString tofGeoTag       = "v21a_1e";
   TString fsdGeoTag       = "v23i"; 
   TString psdGeoTag       = "v23a";