diff --git a/edk2toolext/invocables/edk2_pr_eval.py b/edk2toolext/invocables/edk2_pr_eval.py
index e2673a615..df7a64111 100644
--- a/edk2toolext/invocables/edk2_pr_eval.py
+++ b/edk2toolext/invocables/edk2_pr_eval.py
@@ -120,6 +120,23 @@ def get_packages_to_build(self, possible_packages: list) -> dict:
         if rc != 0:
             return {}
 
+        #
+        # Policy 0 - A file outside a package was modified and force build
+        #            all packages on a modified file outside a package setting
+        #            is enabled.
+        #
+        # Note: GetContainingPackage() returns the top most directory from the
+        #       workspace root for a given file path if the file is not in a
+        #       package.
+        #
+        for f in files:
+            if self.edk2_path_obj.GetContainingPackage(os.path.abspath(f)) \
+                not in possible_packages:
+                return dict.fromkeys(possible_packages,
+                                        "Policy 0 - Build all packages if "
+                                        "a file is modified outside a "
+                                        "package.")
+
         remaining_packages = possible_packages.copy()  # start with all possible packages and remove each
         # package once it is determined to be build.  This optimization
         # avoids checking packages that already will be built.