diff --git a/core/src/main/python/deploy.py b/core/src/main/python/deploy.py
index 7fcc60c77..7b1f3e124 100644
--- a/core/src/main/python/deploy.py
+++ b/core/src/main/python/deploy.py
@@ -4,7 +4,6 @@
 
 The entry point for the deployApps tool.
 """
-import exceptions
 import os
 import sys
 
@@ -50,7 +49,6 @@
     # Used by shell script to locate WLST
     CommandLineArgUtil.DOMAIN_TYPE_SWITCH,
     CommandLineArgUtil.ARCHIVE_FILE_SWITCH,
-    CommandLineArgUtil.PREVIOUS_MODEL_FILE_SWITCH,
     CommandLineArgUtil.VARIABLE_FILE_SWITCH,
     CommandLineArgUtil.ADMIN_URL_SWITCH,
     CommandLineArgUtil.ADMIN_USER_SWITCH,
diff --git a/core/src/main/python/update.py b/core/src/main/python/update.py
index 4f1b01801..4b7b9d85b 100644
--- a/core/src/main/python/update.py
+++ b/core/src/main/python/update.py
@@ -52,7 +52,6 @@
     # Used by shell script to locate WLST
     CommandLineArgUtil.DOMAIN_TYPE_SWITCH,
     CommandLineArgUtil.ARCHIVE_FILE_SWITCH,
-    CommandLineArgUtil.PREVIOUS_MODEL_FILE_SWITCH,
     CommandLineArgUtil.VARIABLE_FILE_SWITCH,
     CommandLineArgUtil.ADMIN_URL_SWITCH,
     CommandLineArgUtil.ADMIN_USER_SWITCH,
diff --git a/core/src/main/python/wlsdeploy/util/cla_utils.py b/core/src/main/python/wlsdeploy/util/cla_utils.py
index 1a535881b..b58316496 100644
--- a/core/src/main/python/wlsdeploy/util/cla_utils.py
+++ b/core/src/main/python/wlsdeploy/util/cla_utils.py
@@ -62,7 +62,6 @@ class CommandLineArgUtil(object):
     OPSS_WALLET_PASSPHRASE     = '-opss_wallet_passphrase'
     OPSS_WALLET_FILE_PASSPHRASE = '-opss_wallet_passphrase_file'
     OPSS_WALLET_ENV_PASSPHRASE  = '-opss_wallet_passphrase_env'
-    PREVIOUS_MODEL_FILE_SWITCH = '-prev_model_file'
     VARIABLE_FILE_SWITCH       = '-variable_file'
     RCU_DB_SWITCH              = '-rcu_db'
     RCU_DB_USER_SWITCH         = '-rcu_db_user'
@@ -262,10 +261,6 @@ def process_args(self, args, tool_type=TOOL_TYPE_DEFAULT, trailing_arg_count=0):
                 value, idx = self._get_arg_value(args, idx)
                 full_path = self._validate_model_file_arg(value)
                 self._add_arg(key, full_path, True)
-            elif self.is_previous_model_file_key(key):
-                value, idx = self._get_arg_value(args, idx)
-                full_path = self._validate_previous_model_file_arg(value)
-                self._add_arg(key, full_path, True)
             elif self.is_validate_method_key(key):
                 value, idx = self._get_arg_value(args, idx)
                 context = self._validate_validate_method_arg(value)
@@ -762,12 +757,6 @@ def _validate_model_file_arg(self, value):
 
         return ",".join(result_model_files)
 
-    def get_previous_model_file_key(self):
-        return self.PREVIOUS_MODEL_FILE_SWITCH
-
-    def is_previous_model_file_key(self, key):
-        return self.PREVIOUS_MODEL_FILE_SWITCH == key
-
     def _validate_previous_model_file_arg(self, value):
         method_name = '_validate_previous_model_file_arg'
 
diff --git a/core/src/main/python/wlsdeploy/util/model_context.py b/core/src/main/python/wlsdeploy/util/model_context.py
index 65f37d01d..0596db0df 100644
--- a/core/src/main/python/wlsdeploy/util/model_context.py
+++ b/core/src/main/python/wlsdeploy/util/model_context.py
@@ -69,7 +69,6 @@ def __init__(self, program_name, arg_map):
         self._archive_file_name = None
         self._archive_file = None
         self._model_file = None
-        self._previous_model_file = None
         self._variable_file_name = None
         self._run_rcu = False
         self._rcu_database = None
@@ -162,9 +161,6 @@ def __copy_from_args(self, arg_map):
         if CommandLineArgUtil.WAIT_FOR_EDIT_LOCK_SWITCH in arg_map:
             self._wait_for_edit_lock = arg_map[CommandLineArgUtil.WAIT_FOR_EDIT_LOCK_SWITCH]
 
-        if CommandLineArgUtil.PREVIOUS_MODEL_FILE_SWITCH in arg_map:
-            self._previous_model_file = arg_map[CommandLineArgUtil.PREVIOUS_MODEL_FILE_SWITCH]
-
         if CommandLineArgUtil.ATTRIBUTES_ONLY_SWITCH in arg_map:
             self._attributes_only = arg_map[CommandLineArgUtil.ATTRIBUTES_ONLY_SWITCH]
 
@@ -293,8 +289,6 @@ def __copy__(self):
             arg_map[CommandLineArgUtil.ARCHIVE_FILE_SWITCH] = self._archive_file_name
         if self._model_file is not None:
             arg_map[CommandLineArgUtil.MODEL_FILE_SWITCH] = self._model_file
-        if self._previous_model_file is not None:
-            arg_map[CommandLineArgUtil.PREVIOUS_MODEL_FILE_SWITCH] = self._previous_model_file
         if self._attributes_only is not None:
             arg_map[CommandLineArgUtil.ATTRIBUTES_ONLY_SWITCH] = self._attributes_only
         if self._folders_only is not None:
@@ -568,13 +562,6 @@ def get_model_file(self):
         """
         return self._model_file
 
-    def get_previous_model_file(self):
-        """
-        Get the previous model file.
-        :return: the previous model file
-        """
-        return self._previous_model_file
-
     def get_folders_only_control_option(self):
         """
         Get the -folders_only command-line switch for model help tool.