The Office of the Secretary of the United States Senate is developing and implementing an XML-based editing system for the authoring of legislation designed to make the structured markup completely transparent to users. Authors work in an environment similar to that of a word processor in a completely "tags-off" view, with the system maintaining the markup and structure behind the scenes at all times. This system reduces the XML knowledge burden on subject-matter experts to almost zero, allowing authors to concentrate on content while needing to know almost nothing about markup.