Further Key Words for Use in RFCs to Indicate Requirement Levels
RFC 6919

Document history

Date Rev. By Action
Received changes through RFC Editor sync (changed abstract to 'RFC 2119 defines a standard set of key words for describing requirements of a specification. Many ...
(System) Changed document authors from "Richard Barnes, Stephen Kent" to "Richard Barnes, Stephen Kent, Eric Rescorla"
(System) RFC published