diff --git a/offline/packages/CaloReco/CaloTowerStatus.cc b/offline/packages/CaloReco/CaloTowerStatus.cc
index e90a839d07..01f8db2f60 100644
--- a/offline/packages/CaloReco/CaloTowerStatus.cc
+++ b/offline/packages/CaloReco/CaloTowerStatus.cc
@@ -2,6 +2,7 @@
 #include "CaloTowerDefs.h"
 
 #include <calobase/TowerInfo.h>  // for TowerInfo
+#include <calobase/TowerInfoDefs.h>
 #include <calobase/TowerInfoContainer.h>
 #include <calobase/TowerInfoContainerv1.h>
 #include <calobase/TowerInfoContainerv2.h>
@@ -215,6 +216,29 @@ int CaloTowerStatus::InitRun(PHCompositeNode *topNode)
   return Fun4AllReturnCodes::EVENT_OK;
 }
 
+void CaloTowerStatus::emcal_propogate_isBadChi2(const std::vector<std::vector<int>> &badChi2_IB_vec, const std::vector<std::vector<int>> &towers_IB_vec)
+{
+  unsigned int ntowers = m_raw_towers->size();
+  for (unsigned int channel = 0; channel < ntowers; channel++)
+  {
+    std::pair<int, int> sector_ib = TowerInfoDefs::getEMCalSectorIB(channel);
+    int sector = sector_ib.first;
+    int ib = sector_ib.second;
+    int badChi2_towers = badChi2_IB_vec[sector][ib];
+    int towers = towers_IB_vec[sector][ib];
+    // if entire IB is bad then skip
+    if (towers == 0)
+    {
+      continue;
+    }
+    float badChi2_IB_frac = badChi2_towers * 1. / towers;
+    if(badChi2_IB_frac > m_badChi2_IB_threshold)
+    {
+      m_raw_towers->get_tower_at_channel(channel)->set_isBadChi2(true);
+    }
+  }
+}
+
 //____________________________________________________________________________..
 int CaloTowerStatus::process_event(PHCompositeNode * /*topNode*/)
 {
@@ -223,9 +247,22 @@ int CaloTowerStatus::process_event(PHCompositeNode * /*topNode*/)
   float mean_time = 0;
   int hotMap_val = 0;
   float z_score = 0;
+
+  std::vector<std::vector<int>> badChi2_IB_vec(emcal_sector, std::vector<int>(emcal_ib_per_sector, 0));
+  std::vector<std::vector<int>> towers_IB_vec(emcal_sector, std::vector<int>(emcal_ib_per_sector, 0));
+
   for (unsigned int channel = 0; channel < ntowers; channel++)
   {
     unsigned int key = m_raw_towers->encode_key(channel);
+    int sector = -1;
+    int ib = -1;
+
+    if(m_dettype == CaloTowerDefs::CEMC)
+    {
+      std::pair<int, int> sector_ib = TowerInfoDefs::getEMCalSectorIB(channel);
+      sector = sector_ib.first;
+      ib = sector_ib.second;
+    }
     // only reset what we will set
     m_raw_towers->get_tower_at_channel(channel)->set_isHot(false);
     m_raw_towers->get_tower_at_channel(channel)->set_isBadTime(false);
@@ -272,11 +309,29 @@ int CaloTowerStatus::process_event(PHCompositeNode * /*topNode*/)
     {
       m_raw_towers->get_tower_at_channel(channel)->set_isHot(true);
     }
+
+    if(m_dettype == CaloTowerDefs::CEMC && m_raw_towers->get_tower_at_channel(channel)->get_isGood())
+    {
+      ++towers_IB_vec[sector][ib];
+    }
+
     if (chi2 > std::min(std::max(badChi2_treshold_const, adc * adc * badChi2_treshold_quadratic),badChi2_treshold_max))
     {
       m_raw_towers->get_tower_at_channel(channel)->set_isBadChi2(true);
+
+      if(m_dettype == CaloTowerDefs::CEMC)
+      {
+        ++badChi2_IB_vec[sector][ib];
+      }
     }
   }
+
+  // propagate the isBadChi2 status to entire interface board if threshold is exceeded
+  if (m_dettype == CaloTowerDefs::CEMC)
+  {
+    emcal_propogate_isBadChi2(badChi2_IB_vec, towers_IB_vec);
+  }
+
   return Fun4AllReturnCodes::EVENT_OK;
 }
 
diff --git a/offline/packages/CaloReco/CaloTowerStatus.h b/offline/packages/CaloReco/CaloTowerStatus.h
index 21c9a5f229..872697e425 100644
--- a/offline/packages/CaloReco/CaloTowerStatus.h
+++ b/offline/packages/CaloReco/CaloTowerStatus.h
@@ -95,8 +95,16 @@ class CaloTowerStatus : public SubsysReco
     m_isSim = isSim;
     return;
   }
+  void set_badChi2_IB_threshold(float badChi2_IB_threshold)
+  {
+    m_badChi2_IB_threshold = badChi2_IB_threshold;
+    return;
+  }
 
  private:
+
+  void emcal_propogate_isBadChi2(const std::vector<std::vector<int>> &badChi2_IB_vec, const std::vector<std::vector<int>> &towers_IB_vec);
+
   TowerInfoContainer *m_raw_towers{nullptr};
 
   CDBTTree *m_cdbttree_chi2{nullptr};
@@ -135,6 +143,10 @@ class CaloTowerStatus : public SubsysReco
   float z_score_threshold = {5};
   float z_score_threshold_default = {5};
   float time_cut = 2;  // number of samples from the mean time for the channel in the run
+
+  int emcal_sector = {64};
+  int emcal_ib_per_sector = {6};
+  float m_badChi2_IB_threshold = {0.5};
 };
 
 #endif  // CALOTOWERBUILDER_H