diff --git a/sepolicy/app.te b/sepolicy/app.te
index 761eb5f..e590efe 100644
--- a/sepolicy/app.te
+++ b/sepolicy/app.te
@@ -1,3 +1,8 @@
+# Access OBBs (sdcard_posix) mounted by vold
+# File write access allowed for FDs returned through Storage Access Framework
+allow appdomain sdcard_posix:dir r_dir_perms;
+allow appdomain sdcard_posix:file rw_file_perms;
+
 # Themed resources (i.e. composed icons)
 allow appdomain theme_data_file:dir r_dir_perms;
 allow appdomain theme_data_file:file r_file_perms;
diff --git a/sepolicy/platform_app.te b/sepolicy/platform_app.te
new file mode 100644
index 0000000..db8647d
--- /dev/null
+++ b/sepolicy/platform_app.te
@@ -0,0 +1,4 @@
+# Direct access to vold-mounted storage under /mnt/media_rw
+# This is a performance optimization that allows platform apps to bypass the FUSE layer
+allow platform_app sdcard_posix:dir create_dir_perms;
+allow platform_app sdcard_posix:file create_file_perms;