diff --git a/NOTICE.md b/NOTICE.md
new file mode 100644
index 000000000..c1b372998
--- /dev/null
+++ b/NOTICE.md
@@ -0,0 +1,4 @@
+
+### Licensing exclusions/External copyrighted material
+
+Shockwave landing sound: [ULTRAKILL Game](https://store.steampowered.com/app/1229490/), ARR, got permission to use in mod
diff --git a/README.md b/README.md
index 809e3e5e7..c153ece08 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ to avoid bloating git history with generated blobs.
 
 ## License
 
-**The mod is licensed under 2-Clause BSD**
+Unless otherwise stated in [NOTICE](NOTICE.md), material in mod is licensed under **2-Clause BSD**
 
 Copyright 2021-Present DBotThePony, GearShocky, Overdrive That Matters Contributors