Web Standard: Standard Web Formats and Proprietary File Formats

Related Information

Definitions

The EPA standard formats for publishing information on the Web are HTML, and to a much lesser extent, PDF (default to HTML).

Many programs create file formats with unique file extensions (e.g., .doc, .pptx, .zip). Proprietary formats (e.g., .docx, .xls, .ppt) should be used only when necessary, like when providing documents that users may need to edit or files for installing software. These files are rarely updated and are more likely to become redundant, outdated or trivial. Consider carefully before publishing these types of files.

Content Requirements

  • Scan files for viruses before uploading the file to the WebCMS.
  • When linking to other file formats, follow this format: <link>Document Title (DOCX)</link> 
  • Add the proprietary format disclaimer to each link you post on your pages (see the sidebar).
  • You may only use file types for applications which EPA has a Terms of Service agreement. Terms of Service are negotiated at the Agency or federal level.

Add proprietary format disclaimer and link to the EPA formats page.

  • Option 1: Add a Multipurpose box to the page with the following text:
  • Option 2: Inline disclaimer (e.g.): Document Title (DOCX) Free Viewers

About this Standard

All EPA public web content must adhere to all federal requirements including; the EPA Web Standards, the U.S. Web Design System guidelines, federal plain language guidelines, and the 21st Century Integrated Digital Experience Act. Internal content, including Intranet and Microsoft 365, may differ from the public content. If not explicitly stated, content must adhere to all federal requirements.

Original effective date: 09/12/2012
Last approved on: 11/14/2024
Web Council review by: 11/14/2027 (or earlier if deemed necessary by the Web Council)

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Last updated on November 21, 2024