usefor-usefor-01 September 2004

3.2  Optional Headers

   None of the headers appearing in this section is required to appear
   in every article but some of them are required in certain types of
   article, such as followups.  Further discussion of these requirements
   is discussed in [USEPRO] and [USEAGE].

   The headers Reply-To, Sender, Comments, and Keywords are often used
   in news articles and have the identical meaning as that specified in
   [RFC2822] with the added restrictions detailed in Section 2.2.

   The MIME headers Content-Type and Content-Transfer-Encoding are often
   used in news articles and have the identical meaning as that
   specified in [RFC2045] with the added restrictions detailed in
   Section 2.2.

   All other commonly used news headers are described below.

--- ../usefor-article-13/Optional_Headers.out          May 2004
+++ ../usefor-usefor-01/Optional_Headers.out          September 2004
@@ -1,11 +1,18 @@
-6.  Optional Headers
+3.2  Optional Headers
 
    None of the headers appearing in this section is required to appear
    in every article but some of them are required in certain types of
-   article, such as followups. Any header defined in this (or any other)
-   standard MUST NOT appear more than once in an article unless
-   specifically stated otherwise.  Experimental headers (4.2.5.1) and
-   headers defined by cooperating subnets are exempt from this
-   requirement.  See section 8 "Duties of Various Agents" for the full
-   picture.
+   article, such as followups.  Further discussion of these requirements
+   is discussed in [USEPRO] and [USEAGE].
+
+   The headers Reply-To, Sender, Comments, and Keywords are often used
+   in news articles and have the identical meaning as that specified in
+   [RFC2822] with the added restrictions detailed in Section 2.2.
+
+   The MIME headers Content-Type and Content-Transfer-Encoding are often
+   used in news articles and have the identical meaning as that
+   specified in [RFC2045] with the added restrictions detailed in
+   Section 2.2.
+
+   All other commonly used news headers are described below.