diff --git a/Configuration/PyReleaseValidation/python/relval_steps.py b/Configuration/PyReleaseValidation/python/relval_steps.py
index fc2a04bf72cf8..3c6bd56721c47 100644
--- a/Configuration/PyReleaseValidation/python/relval_steps.py
+++ b/Configuration/PyReleaseValidation/python/relval_steps.py
@@ -3356,6 +3356,15 @@ def gen2021HiMix(fragment,howMuch):
                                        '--geometry' : geom
                                        }
 
+    upgradeStepDict['GenSimHLBeamSpotHGCALCloseBy'][k]= {'-s' : 'GEN,SIM',
+                                       '-n' : 10,
+                                       '--conditions' : gt,
+                                       '--beamspot' : 'HGCALCloseBy',
+                                       '--datatier' : 'GEN-SIM',
+                                       '--eventcontent': 'FEVTDEBUG',
+                                       '--geometry' : geom
+                                       }
+
     upgradeStepDict['Digi'][k] = {'-s':'DIGI:pdigi_valid,L1,DIGI2RAW,HLT:%s'%(hltversion),
                                       '--conditions':gt,
                                       '--datatier':'GEN-SIM-DIGI-RAW',
diff --git a/Configuration/PyReleaseValidation/python/relval_upgrade.py b/Configuration/PyReleaseValidation/python/relval_upgrade.py
index d25ad0787661b..574bb2cff83a9 100644
--- a/Configuration/PyReleaseValidation/python/relval_upgrade.py
+++ b/Configuration/PyReleaseValidation/python/relval_upgrade.py
@@ -31,8 +31,11 @@ def makeStepName(key,frag,step,suffix):
             for step in upgradeProperties[year][key]['ScenToRun']:                    
                 stepMaker = makeStepName
                 if 'Sim' in step:
-                    if 'HLBeamSpot' in step and '14TeV' in frag:
-                        step = 'GenSimHLBeamSpot14'
+                    if 'HLBeamSpot' in step:
+                        if '14TeV' in frag:
+                            step = 'GenSimHLBeamSpot14'
+                        if 'CloseByParticle' in frag or 'CE_E' in frag or 'CE_H' in frag:
+                            step = 'GenSimHLBeamSpotHGCALCloseBy'
                     stepMaker = makeStepNameSim
                 
                 if 'HARVEST' in step: hasHarvest = True
diff --git a/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py b/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py
index a77ed03c611c7..bd2a20d5e2471 100644
--- a/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py
+++ b/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py
@@ -159,6 +159,7 @@ def condition(self, fragment, stepList, key, hasHarvest):
         'GenSim',
         'GenSimHLBeamSpot',
         'GenSimHLBeamSpot14',
+        'GenSimHLBeamSpotHGCALCloseBy',
         'Digi',
         'DigiTrigger',
         'RecoLocal',
diff --git a/Configuration/StandardSequences/python/VtxSmeared.py b/Configuration/StandardSequences/python/VtxSmeared.py
index a5d1677bfb55e..7e1747948cf79 100644
--- a/Configuration/StandardSequences/python/VtxSmeared.py
+++ b/Configuration/StandardSequences/python/VtxSmeared.py
@@ -37,6 +37,7 @@
     'RealisticPbPBoost5TeV2016Collision':  'GeneratorInterface.HiGenCommon.VtxSmearedPbP5TeVBoost_cff',
     'RealisticPPbBoost8TeV2016Collision':  'GeneratorInterface.HiGenCommon.VtxSmearedPPb8TeVBoost_cff',
     'RealisticPbPBoost8TeV2016Collision':  'GeneratorInterface.HiGenCommon.VtxSmearedPbP8TeVBoost_cff',
+    'HGCALCloseBy'  :                'IOMC.EventVertexGenerators.VtxSmearedHGCALCloseBy_cfi',
     'HLLHC'  :                       'IOMC.EventVertexGenerators.VtxSmearedHLLHC_cfi',
     'HLLHC14TeV'  :                  'IOMC.EventVertexGenerators.VtxSmearedHLLHC14TeV_cfi',
     'HLLHC_CK'  :                    'IOMC.EventVertexGenerators.VtxSmearedHLLHCCrabKissing_cfi',
diff --git a/IOMC/EventVertexGenerators/python/VtxSmearedHGCALCloseBy_cfi.py b/IOMC/EventVertexGenerators/python/VtxSmearedHGCALCloseBy_cfi.py
new file mode 100644
index 0000000000000..a4029b1877f96
--- /dev/null
+++ b/IOMC/EventVertexGenerators/python/VtxSmearedHGCALCloseBy_cfi.py
@@ -0,0 +1,10 @@
+import FWCore.ParameterSet.Config as cms
+
+from IOMC.EventVertexGenerators.VtxSmearedParameters_cfi import *
+VtxSmeared = cms.EDProducer("GaussEvtVtxGenerator",
+    GaussVtxSmearingParameters,
+    VtxSmearedCommon
+)
+VtxSmeared.SigmaX = cms.double(0)
+VtxSmeared.SigmaY = cms.double(0)
+VtxSmeared.SigmaZ = cms.double(0)