usefor-usefor-01 September 2004

3.2.6  Distribution

   The Distribution header specifies geographic or organizational limits
   on an article's propagation.

   distribution    =  "Distribution:" SP dist-list CRLF

   list-list       =  [FWS] dist-name *( "," [FWS] dist-name ) [FWS]

   dist-name       =  ALPHA / DIGIT
            *( ALPHA / DIGIT / "+" / "-" / "_" )

   "All" MUST NOT be used as a distribution-name.  Distribution-names
   SHOULD contain at least three characters, except when they are
   two-letter country names as in [ISO.3166.1988].  Distribution-names
   are case-insensitive (i.e.  "US", "Us", "uS", and "us" all specify
   the same distribution).

--- ../usefor-article-13/Distribution.out          May 2004
+++ ../usefor-usefor-01/Distribution.out          September 2004
@@ -1,56 +1,18 @@
-6.6.  Distribution
+3.2.6  Distribution
 
-   The Distribution-header is an inheritable header (see 4.2.5.2) which
-   specifies geographical or organizational limits to an article's
-   propagation.
+   The Distribution header specifies geographic or organizational limits
+   on an article's propagation.
 
-      header              =/ Distribution-header
-      Distribution-header = "Distribution" ":" SP Distribution-content
-                     *( ";" extension-parameter )
-      Distribution-content= distribution *( dist-delim distribution )
-      dist-delim          = ","
-      distribution        = [FWS] distribution-name [FWS]
-      distribution-name   = ALPHA 1*distribution-rest
-      distribution-rest   = ALPHA / "+" / "-" / "_"
+   distribution    =  "Distribution:" SP dist-list CRLF
 
-   Articles MUST NOT be passed between relaying agents or to serving
-   agents unless the sending agent has been configured to supply and the
-   receiving agent to receive at least one of the distributions in the
-   Distribution-header.  Additionally, reading agents MAY also be
-   configured so that unwanted distributions do not get displayed.
+   list-list       =  [FWS] dist-name *( "," [FWS] dist-name ) [FWS]
 
-        NOTE: Although it would seem redundant to filter out unwanted
-        distributions at both ends of a relaying link (and it is clearly
-        more efficient to do so at the sending end), many sending sites
-        have been reluctant, historically speaking, to apply such
-        filters (except to ensure that distributions local to their own
-        site or cooperating subnet did not escape); moreover they tended
-        to configure their filters on an "all but those listed" basis,
-        so that new and hitherto unheard of distributions would not be
-        caught. Indeed many "hub" sites actually wanted to receive all
-        possible distributions so that they could feed on to their
-        clients in all possible geographical (or organizational)
-        regions.
+   dist-name       =  ALPHA / DIGIT
+            *( ALPHA / DIGIT / "+" / "-" / "_" )
 
-        Therefore, it is desirable to provide facilities for rejecting
-        unwanted distributions at the receiving end. Indeed, it may be
-        simpler to do so locally than to inform each sending site of
-        what is required, especially in the case of specialized
-        distributions (for example for control messages, such as cancels
-        from certain issuers) which might need to be added at short
-        notice.  The possibility for reading agents to filter
-        distributions has been provided for the same reason.
-
-   Exceptionally, ALL relaying agents are deemed willing to supply or
-   accept the distribution "world", and NO relaying agent should supply
-   or accept the distribution "local".  However, "world" SHOULD NEVER be
-   mentioned explicitly since it is the default when the Distribution-
-   header is absent entirely.  "All" MUST NOT be used as a
-   distribution-name.  Distribution-names SHOULD contain at least three
-   characters, except when they are two-letter country names as in [ISO
-   3166].  Distribution-names are case-insensitive (i.e. "US", "Us" and
-   "us" all specify the same distribution).
-
-   Followup agents SHOULD initially supply the same Distribution-header
-   as found in the precursor.
+   "All" MUST NOT be used as a distribution-name.  Distribution-names
+   SHOULD contain at least three characters, except when they are
+   two-letter country names as in [ISO.3166.1988].  Distribution-names
+   are case-insensitive (i.e.  "US", "Us", "uS", and "us" all specify
+   the same distribution).