diff --git a/common_tools/git/hooks/client-side/copy_hooks_scripts.sh b/common_tools/git/hooks/client-side/copy_hooks_scripts.sh
index d56b37729..65fbca4d7 100755
--- a/common_tools/git/hooks/client-side/copy_hooks_scripts.sh
+++ b/common_tools/git/hooks/client-side/copy_hooks_scripts.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 #
-# Run from the base TriBITS git repo clone to install local git hooks
+# Run from a base git repo clone to install local git hooks
+#
+# For example:
 #
 #   $ cd TriBITS/
 #   $ ./commont_tools/git/client-side/copy_hooks_scripts.sh
@@ -14,13 +16,14 @@ fi
 _SCRIPT_DIR=`echo $0 | sed "s/\(.*\)\/copy_hooks_scripts.sh/\1/g"`
 
 function copy_hook_script {
-  orig_file="$_SCRIPT_DIR/$1"
-  dest_file=".git/hooks/$1"
+  hook_file_name=$1
+  orig_file="$_SCRIPT_DIR/${hook_file_name}"
+  dest_file=".git/hooks/${hook_file_name}"
   
   if diff ${orig_file} ${dest_file} &> /dev/null ; then
-    :
+    echo "NOTE: Local git hook script is same as installed: ${hook_file_name}"
   else
-    echo "Copy local git hook script: $1"
+    echo "Copy local git hook script: ${hook_file_name}"
     cp "${orig_file}" "${dest_file}"
   fi
 }
diff --git a/common_tools/git/hooks/client-side/pre-push b/common_tools/git/hooks/client-side/pre-push
new file mode 100755
index 000000000..80a261e37
--- /dev/null
+++ b/common_tools/git/hooks/client-side/pre-push
@@ -0,0 +1,86 @@
+#!/usr/bin/env python3
+#
+# pre-push hook to check that commits are signed before pushing
+#
+
+import os
+import sys
+import subprocess
+
+
+# Functions
+
+
+def s(x):
+  try:
+    return x.decode("utf-8")
+  except AttributeError:
+    return x
+
+
+def getCmndOutput(cmnd):
+  result = subprocess.run(cmnd, stdout=subprocess.PIPE,
+    stderr = subprocess.STDOUT)
+  output = s(result.stdout)
+  if result.returncode != 0:
+    print("Error, the command "+str(cmnd)+" returned error code "+str(result.returncode)\
+      +" with the stderr message:\n\n"+str(result.stderr)\
+      +"\n\nReturned output was:\n\n"+output)
+    exit(1)
+  return output
+
+
+#
+# Main
+#
+
+
+# Read in command-line args
+cmndLineArgs = sys.argv[1:]
+remoteName = cmndLineArgs[0] 
+remoteURL = cmndLineArgs[1]
+#print("remoteName = "+str(remoteName))
+#print("remoteURL = "+str(remoteURL))
+
+# Read in data from STDIIN
+stdinStr = sys.stdin.read().strip()
+if stdinStr:
+  stdinArray = stdinStr.split(" ")
+  #print("stdinArray = "+str(stdinArray))
+  localRef = stdinArray[0]
+  localObjectName = stdinArray[1]
+  remoteRef = stdinArray[2]
+  remoteObjectName = stdinArray[3]
+  #print("localRef = "+localRef)
+  #print("localObjectName = "+localObjectName)
+  #print("remoteRef = "+remoteRef)
+  #print("remoteObjectName = "+remoteObjectName)
+
+# Get the commits
+if stdinStr:
+  gitCommits = getCmndOutput(["git", "rev-list",
+    remoteObjectName+".."+localObjectName]).strip()
+  #print("gitCommits = '"+gitCommits+"'")
+else:
+  gitCommits = None
+
+# Loop over commits and check for the proper usage
+if gitCommits:
+
+  gitCommitsArray = str(gitCommits).split("\n")
+  #print("gitCommitsArray = "+str(gitCommitsArray))
+
+  for commit in gitCommitsArray:
+    commitMsg = getCmndOutput(["git", "log", "-1", "--pretty=format:\"%B\"", commit])
+    if not "Signed-off-by:" in commitMsg:
+      print("Error: Commit "+commit+" does not have a Signed-off-by line!")
+      exit(1)
+
+# Abort if only doing testing
+prePushHookTesting = os.environ.get("PRE_PUSH_HOOK_TESTING", "0")
+if prePushHookTesting == "1":
+  print("Aborting pre-push because PRE_PUSH_HOOK_TESTING="+str(prePushHookTesting))
+  exit(1)
+
+# If you get here, it is okay to push!
+exit(0)