diff --git a/63.md b/63.md
index 45aa5345..3c1b3129 100644
--- a/63.md
+++ b/63.md
@@ -38,11 +38,11 @@ They are submitted to supporting relays via `SREQ` command, with the following f
 
 Supporting relays interpret the `filter` tags in the same way they do with `REQ` while automatically authenticating the signer. 
 
-Supporting relays MUST authenticate the `authorized` key if present. 
+Relays MUST authenticate the `authorized` key if present. 
 
-Relays MAY reject these filters based on `created_at`. 
+Relays MUST verify if they are included in the `relays` list if present. 
 
-An expiration tag MAY be used to limit the reuse of the filter. 
+Relays MUST comply with the `expiration` to limit the reuse of the filter. 
 
 ## Motivation