diff --git a/Configuration/Eras/python/Era_Run3_cff.py b/Configuration/Eras/python/Era_Run3_cff.py
index feb3bcc93f44c..f14331bc9a000 100644
--- a/Configuration/Eras/python/Era_Run3_cff.py
+++ b/Configuration/Eras/python/Era_Run3_cff.py
@@ -11,6 +11,7 @@
 from Configuration.Eras.Modifier_ctpps_2021_cff import ctpps_2021
 from Configuration.ProcessModifiers.dd4hep_cff import dd4hep
 from Configuration.Eras.Modifier_run3_nanoAOD_devel_cff import run3_nanoAOD_devel
+from Configuration.Eras.Modifier_run3_egamma_cff import run3_egamma
 
-Run3 = cms.ModifierChain(Run2_2018.copyAndExclude([run2_GEM_2017, ctpps_2018]), run3_common, run3_GEM, run3_HB, run3_HFSL, stage2L1Trigger_2021, ctpps_2021, dd4hep, run3_nanoAOD_devel)
+Run3 = cms.ModifierChain(Run2_2018.copyAndExclude([run2_GEM_2017, ctpps_2018]), run3_common, run3_egamma, run3_GEM, run3_HB, run3_HFSL, stage2L1Trigger_2021, ctpps_2021, dd4hep, run3_nanoAOD_devel)
 
diff --git a/Configuration/Eras/python/Modifier_run3_egamma_cff.py b/Configuration/Eras/python/Modifier_run3_egamma_cff.py
new file mode 100644
index 0000000000000..5e0c0d5b734e4
--- /dev/null
+++ b/Configuration/Eras/python/Modifier_run3_egamma_cff.py
@@ -0,0 +1,3 @@
+import FWCore.ParameterSet.Config as cms
+
+run3_egamma =cms.Modifier()
diff --git a/RecoEgamma/EgammaTools/python/regressionModifier_cfi.py b/RecoEgamma/EgammaTools/python/regressionModifier_cfi.py
index fa20481555ded..519ce20144f20 100644
--- a/RecoEgamma/EgammaTools/python/regressionModifier_cfi.py
+++ b/RecoEgamma/EgammaTools/python/regressionModifier_cfi.py
@@ -238,24 +238,31 @@
 #by default we use the regression inappropriate to the main purpose of this release
 #life is simplier that way
 regressionModifier = regressionModifier94X.clone()
-
+regressionModifierRun2 = regressionModifier106XUL.clone()
 
 from Configuration.Eras.Modifier_run2_egamma_2016_cff import run2_egamma_2016
 from Configuration.Eras.Modifier_run2_egamma_2017_cff import run2_egamma_2017
 from Configuration.Eras.Modifier_run2_egamma_2018_cff import run2_egamma_2018
 
-(run2_egamma_2016 | run2_egamma_2017 | run2_egamma_2018).toReplaceWith(regressionModifier,regressionModifier106XUL)
+(run2_egamma_2016 | run2_egamma_2017 | run2_egamma_2018).toReplaceWith(regressionModifier,regressionModifierRun2)
 
-from Configuration.Eras.Modifier_run3_common_cff import run3_common
-run3_common.toModify(regressionModifier106XUL.eleRegs.ecalOnlyMean,
-      rangeMinHighEt = 0.2,
-      rangeMaxHighEt = 2.0
+regressionModifierRun3 = regressionModifierRun2.clone(
+    eleRegs = dict(
+        ecalOnlyMean = dict(
+            rangeMinHighEt = 0.2,
+            rangeMaxHighEt = 2.0
+        )
+    ),
+    phoRegs = dict(
+        ecalOnlyMean = dict(
+            rangeMinHighEt = 0.2,
+            rangeMaxHighEt = 2.0
+        )
+    )
 )
 
-run3_common.toModify(regressionModifier106XUL.phoRegs.ecalOnlyMean,
-      rangeMinHighEt = 0.2,
-      rangeMaxHighEt = 2.0
-)
+from Configuration.Eras.Modifier_run3_egamma_cff import run3_egamma
+run3_egamma.toReplaceWith(regressionModifier,regressionModifierRun3)
 
 from Configuration.ProcessModifiers.egamma_lowPt_exclusive_cff import egamma_lowPt_exclusive
 egamma_lowPt_exclusive.toReplaceWith(regressionModifier,regressionModifier103XLowPtPho)