diff --git a/Home.md b/Home.md
index f3e8592..7136f49 100644
--- a/Home.md
+++ b/Home.md
@@ -22,6 +22,16 @@ All barcodes shall start with `QSv1` as the first field. The second field shall
 
 ## Data Fields
 
+### Subtype `u`: URL providing the code content
+
+This type allows for smaller and shorter codes by providing a HTTP URL linking to where the barcode's content can be retrieved. The URL shall respond to a `GET` request by serving a Quick Send code with the mimetype `text/plain`. The data shall be served in the same format as it would be if encoded into a barcode directly. If a response is received that is not a valid Quick Send code, the application should handle it the same as scanning an incompatible barcode.
+
+Position | Meaning
+---------|--------
+0 | Format header (`QSv1`)
+1 | Subtype header (`u`)
+2 | URL, starting with `http://` or `https://`
+
 ### Subtype `a`: To/From Addresses
 
 Basic to/from address data only.