Jump to main content or area navigation.

Contact Us

Fuels and Fuel Additives

Renewable Fuels: EPA Moderated Transaction System (EMTS)

NOTE: The Flash Plugin is required and a broadband connection is recommended for best viewing.


Getting Started

RIN Transactions  

Managing RINs


Reports and Notifications  

Quality Assurance Plan (QAP) 

OTAQ Registration

  • Company Associations (8 minutes, November 2013)  
  • Registering a New CDX User (5 minutes, August 2011)  
  • DC Fuels Registration Tutorial (10 minutes, October 2011)  
  • Adding the EMTS Application in CDX (7 minutes, August 2011)  
  • Relationships between users, organizations, and facilities (7 minutes, May 2010)  
  • View/Edit Company Details (5 minutes, March 2014)  
  • New Importer Company (7 minutes, March 2014)  
  • New Producer Company (9 minutes, April 2014)  
  • QAP Overview for QAP Providers (25 minutes, September 2014) 
  • QAP Overview for RCOs (8 minutes, September 2014) 
  • How to View

    All tutorials include video and audio. To watch a tutorial, simply click the link. The tutorial will open in a new browser window. All tutorials are Closed Captioned. Please contact EMTS Support at support@epamts-support.com if you have any questions or comments.

    Tutorial Play Bar Diagram

    If you have questions or request information, please contact the appropriate support or help line found on the Support & Help page.

    Please visit EPA's Transportation and Air Quality web-based repository of mobile source documents, Document Index System (DIS). This searchable repository contains regulations, Federal Register notices, policy letters, and guidance documents.

    Please visit our Related Links page for other fuel related information within EPA, other U.S. Agencies, and other fuel related websites.

    This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ).
    For more: About Us | Get E-mail Updates | Browse the A to Z Subject Index.

    Jump to main content.