diff --git a/specification/AdvertisingMode.md b/specification/AdvertisingMode.md
index 8cec2ce..b66f1aa 100644
--- a/specification/AdvertisingMode.md
+++ b/specification/AdvertisingMode.md
@@ -164,6 +164,12 @@ below.
 
 Note: URIs are written only with the graphic printable characters of the US-ASCII coded character set. The octets 00-20 and 7F-FF hexadecimal are not used. See “Excluded US-ASCII Characters” in RFC 2936.
 
+
+### UriBeacon HTTP URL decoding
+
+During the decoding process, of a sequence of characters denoting a UriBeacon, one should first determine whether it starts with a Uri scheme prefix. 
+Then, if the scheme prefix denotes an HTTP URL prefix, all subsequent characters should be inspected and expanded accordingly. Any character within the URL, not just the suffix, will be substituted. It is possible for the sequence of characters to contain multiple HTTP URL expansion characters. 
+
 ## References
 - `Service UUID` type is defined in Core Specification Supplement, Part A, section 1.1
 - `Service Data` type is defined in Core Specification Supplement, Part A, section 1.11