The EDGAR system accepts ASCII, HTML and XML documents as official filings.

The EDGAR system imposes certain limitations on HTML documents. The SEC has adopted a specific HTML standard for HTML documents submitted via EDGAR. Because different Internet browsers used by filers or the public may display the information presented in an HTML document in a different fashion, a document viewed through one browser may have a different appearance and layout from the same filing viewed through a different browser. To maximize the likelihood of consistent document appearance across different browsers, and eliminate active content, the rules specify a set of HTML tags permissible in HTML documents. The tag list is included in the EDGAR Filer Manual. In general, the EDGAR system will suspend submissions that contain tags that are not permitted.

Certain typographical parameters such as font type, font size, leading, measure and position of graphics, sidebars and boxed text will vary from a printed version of the document to the HTML version, due to limitations imposed by HTML coding and browser differences.