usefor-article-03 February 2000

6.17.4.  Character Sets

   In principle, any character set may be specified in the "charset="
   parameter of a content type. However, character sets other than "us-
   ascii", "iso-8859-1" (and the corresponding parts of UTF-8) ought
   only to be used in hierarchies where the language customarily used so
   requires (and whose readers could be expected to possess agents
   capable of displaying them).