diff --git a/payload_consumer/install_plan.h b/payload_consumer/install_plan.h
index ede36b3..17cefd8 100644
--- a/payload_consumer/install_plan.h
+++ b/payload_consumer/install_plan.h
@@ -146,6 +146,9 @@
   // True if this update is a rollback.
   bool is_rollback{false};
 
+  // True if this rollback should preserve some system data.
+  bool rollback_data_save_requested{false};
+
   // True if the update should write verity.
   // False otherwise.
   bool write_verity{true};
diff --git a/payload_consumer/postinstall_runner_action.cc b/payload_consumer/postinstall_runner_action.cc
index a782b8f..cc3843d 100644
--- a/payload_consumer/postinstall_runner_action.cc
+++ b/payload_consumer/postinstall_runner_action.cc
@@ -57,9 +57,14 @@
   CHECK(HasInputObject());
   install_plan_ = GetInputObject();
 
-  // Currently we're always powerwashing when rolling back.
+  // We always powerwash when rolling back, however policy can determine
+  // if this is a full/normal powerwash, or a special rollback powerwash
+  // that retains a small amount of system state such as enrollment and
+  // network configuration. In both cases all user accounts are deleted.
   if (install_plan_.powerwash_required || install_plan_.is_rollback) {
-    if (hardware_->SchedulePowerwash(install_plan_.is_rollback)) {
+    bool save_rollback_data =
+        install_plan_.is_rollback && install_plan_.rollback_data_save_requested;
+    if (hardware_->SchedulePowerwash(save_rollback_data)) {
       powerwash_scheduled_ = true;
     } else {
       return CompletePostinstall(ErrorCode::kPostinstallPowerwashError);
diff --git a/payload_consumer/postinstall_runner_action_unittest.cc b/payload_consumer/postinstall_runner_action_unittest.cc
index caee5e2..04c81fa 100644
--- a/payload_consumer/postinstall_runner_action_unittest.cc
+++ b/payload_consumer/postinstall_runner_action_unittest.cc
@@ -100,7 +100,8 @@
   void RunPostinstallAction(const string& device_path,
                             const string& postinstall_program,
                             bool powerwash_required,
-                            bool is_rollback);
+                            bool is_rollback,
+                            bool save_rollback_data);
 
  public:
   void ResumeRunningAction() {
@@ -170,7 +171,8 @@
     const string& device_path,
     const string& postinstall_program,
     bool powerwash_required,
-    bool is_rollback) {
+    bool is_rollback,
+    bool save_rollback_data) {
   ActionProcessor processor;
   processor_ = &processor;
   auto feeder_action = std::make_unique<ObjectFeederAction<InstallPlan>>();
@@ -184,6 +186,7 @@
   install_plan.download_url = "http://127.0.0.1:8080/update";
   install_plan.powerwash_required = powerwash_required;
   install_plan.is_rollback = is_rollback;
+  install_plan.rollback_data_save_requested = save_rollback_data;
   feeder_action->set_obj(install_plan);
   auto runner_action = std::make_unique<PostinstallRunnerAction>(
       &fake_boot_control_, &fake_hardware_);
@@ -249,7 +252,8 @@
 TEST_F(PostinstallRunnerActionTest, RunAsRootSimpleTest) {
   ScopedLoopbackDeviceBinder loop(postinstall_image_, false, nullptr);
 
-  RunPostinstallAction(loop.dev(), kPostinstallDefaultScript, false, false);
+  RunPostinstallAction(
+      loop.dev(), kPostinstallDefaultScript, false, false, false);
   EXPECT_EQ(ErrorCode::kSuccess, processor_delegate_.code_);
   EXPECT_TRUE(processor_delegate_.processing_done_called_);
 
@@ -260,7 +264,7 @@
 
 TEST_F(PostinstallRunnerActionTest, RunAsRootRunSymlinkFileTest) {
   ScopedLoopbackDeviceBinder loop(postinstall_image_, false, nullptr);
-  RunPostinstallAction(loop.dev(), "bin/postinst_link", false, false);
+  RunPostinstallAction(loop.dev(), "bin/postinst_link", false, false, false);
   EXPECT_EQ(ErrorCode::kSuccess, processor_delegate_.code_);
 }
 
@@ -270,6 +274,7 @@
   RunPostinstallAction(loop.dev(),
                        "bin/postinst_example",
                        /*powerwash_required=*/true,
+                       false,
                        false);
   EXPECT_EQ(ErrorCode::kSuccess, processor_delegate_.code_);
 
@@ -278,14 +283,31 @@
   EXPECT_FALSE(fake_hardware_.GetIsRollbackPowerwashScheduled());
 }
 
-TEST_F(PostinstallRunnerActionTest, RunAsRootRollbackTest) {
+TEST_F(PostinstallRunnerActionTest, RunAsRootRollbackTestNoDataSave) {
   ScopedLoopbackDeviceBinder loop(postinstall_image_, false, nullptr);
 
   // Run a simple postinstall program, rollback happened.
   RunPostinstallAction(loop.dev(),
                        "bin/postinst_example",
                        false,
-                       /*is_rollback=*/true);
+                       /*is_rollback=*/true,
+                       /*save_rollback_data=*/false);
+  EXPECT_EQ(ErrorCode::kSuccess, processor_delegate_.code_);
+
+  // Check that powerwash was scheduled and that it's NOT a rollback powerwash.
+  EXPECT_TRUE(fake_hardware_.IsPowerwashScheduled());
+  EXPECT_FALSE(fake_hardware_.GetIsRollbackPowerwashScheduled());
+}
+
+TEST_F(PostinstallRunnerActionTest, RunAsRootRollbackTestWithDataSave) {
+  ScopedLoopbackDeviceBinder loop(postinstall_image_, false, nullptr);
+
+  // Run a simple postinstall program, rollback happened.
+  RunPostinstallAction(loop.dev(),
+                       "bin/postinst_example",
+                       false,
+                       /*is_rollback=*/true,
+                       /*save_rollback_data=*/true);
   EXPECT_EQ(ErrorCode::kSuccess, processor_delegate_.code_);
 
   // Check that powerwash was scheduled and that it's a rollback powerwash.
@@ -296,7 +318,8 @@
 // Runs postinstall from a partition file that doesn't mount, so it should
 // fail.
 TEST_F(PostinstallRunnerActionTest, RunAsRootCantMountTest) {
-  RunPostinstallAction("/dev/null", kPostinstallDefaultScript, false, false);
+  RunPostinstallAction(
+      "/dev/null", kPostinstallDefaultScript, false, false, false);
   EXPECT_EQ(ErrorCode::kPostinstallRunnerError, processor_delegate_.code_);
 
   // In case of failure, Postinstall should not signal a powerwash even if it
@@ -309,7 +332,7 @@
 // fail.
 TEST_F(PostinstallRunnerActionTest, RunAsRootErrScriptTest) {
   ScopedLoopbackDeviceBinder loop(postinstall_image_, false, nullptr);
-  RunPostinstallAction(loop.dev(), "bin/postinst_fail1", false, false);
+  RunPostinstallAction(loop.dev(), "bin/postinst_fail1", false, false, false);
   EXPECT_EQ(ErrorCode::kPostinstallRunnerError, processor_delegate_.code_);
 }
 
@@ -317,7 +340,7 @@
 // UMA with a different error code. Test those cases are properly detected.
 TEST_F(PostinstallRunnerActionTest, RunAsRootFirmwareBErrScriptTest) {
   ScopedLoopbackDeviceBinder loop(postinstall_image_, false, nullptr);
-  RunPostinstallAction(loop.dev(), "bin/postinst_fail3", false, false);
+  RunPostinstallAction(loop.dev(), "bin/postinst_fail3", false, false, false);
   EXPECT_EQ(ErrorCode::kPostinstallBootedFromFirmwareB,
             processor_delegate_.code_);
 }
@@ -325,7 +348,7 @@
 // Check that you can't specify an absolute path.
 TEST_F(PostinstallRunnerActionTest, RunAsRootAbsolutePathNotAllowedTest) {
   ScopedLoopbackDeviceBinder loop(postinstall_image_, false, nullptr);
-  RunPostinstallAction(loop.dev(), "/etc/../bin/sh", false, false);
+  RunPostinstallAction(loop.dev(), "/etc/../bin/sh", false, false, false);
   EXPECT_EQ(ErrorCode::kPostinstallRunnerError, processor_delegate_.code_);
 }
 
@@ -334,7 +357,8 @@
 // SElinux labels are only set on Android.
 TEST_F(PostinstallRunnerActionTest, RunAsRootCheckFileContextsTest) {
   ScopedLoopbackDeviceBinder loop(postinstall_image_, false, nullptr);
-  RunPostinstallAction(loop.dev(), "bin/self_check_context", false, false);
+  RunPostinstallAction(
+      loop.dev(), "bin/self_check_context", false, false, false);
   EXPECT_EQ(ErrorCode::kSuccess, processor_delegate_.code_);
 }
 #endif  // __ANDROID__
@@ -347,7 +371,7 @@
   loop_.PostTask(FROM_HERE,
                  base::Bind(&PostinstallRunnerActionTest::SuspendRunningAction,
                             base::Unretained(this)));
-  RunPostinstallAction(loop.dev(), "bin/postinst_suspend", false, false);
+  RunPostinstallAction(loop.dev(), "bin/postinst_suspend", false, false, false);
   // postinst_suspend returns 0 only if it was suspended at some point.
   EXPECT_EQ(ErrorCode::kSuccess, processor_delegate_.code_);
   EXPECT_TRUE(processor_delegate_.processing_done_called_);
@@ -359,7 +383,7 @@
 
   // Wait for the action to start and then cancel it.
   CancelWhenStarted();
-  RunPostinstallAction(loop.dev(), "bin/postinst_suspend", false, false);
+  RunPostinstallAction(loop.dev(), "bin/postinst_suspend", false, false, false);
   // When canceling the action, the action never finished and therefore we had
   // a ProcessingStopped call instead.
   EXPECT_FALSE(processor_delegate_.code_set_);
@@ -382,7 +406,8 @@
 
   ScopedLoopbackDeviceBinder loop(postinstall_image_, false, nullptr);
   setup_action_delegate_ = &mock_delegate_;
-  RunPostinstallAction(loop.dev(), "bin/postinst_progress", false, false);
+  RunPostinstallAction(
+      loop.dev(), "bin/postinst_progress", false, false, false);
   EXPECT_EQ(ErrorCode::kSuccess, processor_delegate_.code_);
 }