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Fuels and Fuel Additives

Renewable Fuels: EPA Moderated Transaction System (EMTS)
Frequent Questions

Program Information

Registration and Login



Program Information

  • Are there any upcoming changes to EMTS?
    1. System

      Several changes to the EMTS system, including schema (XSD) updates, are scheduled for 2011. See the Planned EMTS System Changes (PDF) (5 pp, 115K, EPA-420-B-11-031, August 2011) document for more information. The updated EMTS schema is available here: http://www.epa.gov/otaq/fuels/renewablefuels/emtsdocs/emts-schema-v2.0.1.zip.

    2. Daily Documents

      EMTS daily documents are scheduled to be updated in 2011. See the EMTS Document Changes (PDF) (2 pp, 85K, EPA-420-B-11-030, August 2011) document for more information.

  • How do I get the latest information about the EPA Moderated Transaction System (EMTS)?
    1. Check this site regularly.
    2. Sign up for Fuels Programs alerts.

  • How do I get more information about the RFS program?

    See the Renewable Fuels site. Sign up for Fuels Programs alerts.

  • Is there an EMTS test site?

    EPA does not currently support a testing environment for the EMTS web application. This may be implemented in the future. Node users who want to test their EMTS data flow in a testing environment should refer to the Flow Configuration Document for instructions.

  • Does EPA require an end-user licensing agreement for the EMTS Conversion Tool?

    EPA does not require that an end-user licensing agreement be executed by parties who download and use the EMTS Conversion Tool (ECT).

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Registration and Login

  • How do I obtain a CDX account?

    Please follow the directions found on the Fuels Programs Registration website.

  • I represent many organizations. How many CDX accounts do I need to maintain?

    Agents only need to maintain one CDX account to submit files through the data exchange.

  • Do users have their own accounts or are accounts assigned to companies?

    Each EMTS user is associated with one or more organizations, and a RIN Holding Account is created for each organization. Multiple users may be associated with an organization, and therefore, be associated with the organization's RIN Holding Account, but all users must have their own CDX account to access EMTS.

    However, there is no function in place to prevent multiple users from accessing the RIN Holding Account (per company) at the same time. The EMTS uses various RIN statuses (i.e., Pending and Reserved) to ensure that multiple users cannot transact the same batch of RINs.

  • How do I login to the EMTS website?

    EMTS is accessed via the Central Data Exchange (CDX). All users must have a CDX login and register with OTAQREG: Fuels Programs Registration prior to interacting with EMTS. There will be a link to access EMTS from the CDX web page in the "Available Account Profiles" section. For detailed instructions, view the MyCDX Getting Started Guide (June 2011, 420-B-11-025).

  • When I attempt to access the EMTS login page, I receive a "Page cannot be displayed" message.

    If you receive the error "Page cannot be displayed" or something similar when attempting to access the EMTS web application, you may need to modify your Internet browser security settings. EMTS uses a specific type of security that must be enabled in the browser. Please check with your IT staff regarding potential adjustments to your security settings that may be required.

    On the Internet Explorer Advanced Options tab, select the following options:

    Internet Options Advanced tab with boxes checked for Enable Integrated Windows Authenication, Enable native XMLHTTP support, Use SSL 3.0, Use TLS 1.0, and Warn about certificate address mismatch. Phising filter is set to Turn off automatic website checking

  • Which web browsers can I use to view the EMTS web application?

    The EMTS web application can be viewed with the following web browsers:

    • Internet Explorer Versions 7 or later
    • Firefox 2.0 or later

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  • How do I enter RIN price?

    RIN price is one of the new pieces of transactional information required to be submitted under RFS2. RIN price information must be submitted for transactions involving both separated RINs and RINs assigned to a renewable volume.

    EPA does not require matching of the RIN price. However, the price information must be accurate rounded to the nearest cent (US Dollar) at the time of sending the transactional information to EMTS.

  • How do I submit a "matching" buy or sell transaction for a trade?

    To complete a RIN trade, organizations can submit matching transactions. Matching transactions are buy and sell transactions submitted by two organizations involved in a single RIN trade. Certain data in the transactions must match exactly for the trade to be successfully processed.

    The following fields must match:

    1. RIN Year;
    2. Fuel Code;
    3. RIN Quantity;
    4. Reason Code; *
    5. Trading Partner (Organization ID);
    6. Assignment Code;
    7. Transaction Date; and
    8. RIN Price Amount or Gallon Price Amount.**

    Note: * If the buy or sell reason is Deny Trade or Cancel Trade, then the Reason Codes do not need to match.

    ** The values reported for these elements are not required to match.

    In addition:

    1. The Trading Partner Organization Identifiers must agree (e.g., the sell transaction should list the buying organization as the Trading Partner, and the buy transaction should list the selling organization as the Trading Partner); and
    2. If one Trading Partner specifies Originating Source information, then the other Trading Partner must specify the same Originating Source information.

  • Am I required to report co-products?

    EMTS users are required to report any co-products produced during the generation of renewable fuel, pursuant to 80.1452(b)(15).

    However, generating renewable fuel does not always produce co-products, so co-product data entry fields are not required in EMTS.

    Only dry and wet distiller grains are EMTS required co-products. However, parties must report all co-products on the quarterly report.

  • How many days do I have to submit my RIN transactions through EMTS?

    Per 40 CFR 80.1452, the RFS2 regulations require sellers five business days and buyers ten business days from the date of title transfer to submit transaction information to EMTS.

    Per 40 CFR 80.1452, the RFS2 regulations require organizations five business days to generate RINs from the date of assignment or to separate RINs from the reportable event in EMTS.

  • When does a pending trade expire?

    Both buy and sell transactions will expire after 10 business days from the submission date.

    However, parties are still required to submit the transactional information through EMTS within the number of days as specified in 80.1452. This requirement is tied to the Product Transfer Document (PTD) date and not to the EMTS submission date. Therefore, it is likely that the expiration date will not be the same as the last day that parties are required to send transactional information to EMTS per 80.1452.

  • Where can I see details about my transactions?

    Submitted transactions can be viewed on the View Node Submissions page or the View Web Submissions page, depending on the submission type. These pages are located under the Submissions menu in EMTS.

    The View RIN Holding History page (located under the RINs menu) displays information for RINs that your organization previously owned but has since removed from its RIN holding account. Therefore, it includes only retire and sell transaction details (i.e., transactions that remove RINs from your RIN holdings).

  • Why can't I view my submitted XML file on the View Node Submissions page?

    The View Node Submissions page is organization-specific. Therefore, you can view only submissions for the organization that your User ID is associated with. The files on the View Node Submission page may have been submitted by other users associated with the organization, as well.

    If you submit a transaction via the Submit File page in EMTS, you can view the submitted XML file on the Submit File History page. This page is user-specific, meaning that you can view all of the XML files that you have submitted, regardless of the organization associated with your User ID.

  • How can I uniquely identify my buy/sell transaction?

    EMTS allows you to reference a Product Transfer Document (PTD) number and a document name for your internal tracking purposes when entering transactions. However, documents cannot be uploaded or attached to a transaction. All unique references in EMTS are optional elements.

  • Can I unblend or unseparate RINs?

    There is no functionality to "unblend" or "unseparate" in EMTS. Improper separation is a violation that results in an invalid RIN.

  • How do I determine what batch numbers I have previously used?

    To determine the batch numbers from all Generate transactions, view the transactions located on the View Web Submissions and View Node Submissions pages, which are found under the Submissions menu of EMTS.

  • Are there times when the EMTS is down for scheduled maintenance?

    The EMTS is down for scheduled maintenance at the following times:

    • Nightly: 11:45 pm to 12:30 am and 4:00 am to 5:00 am EST
    • Sunday: 8:00 pm to 12:00 am EST
  • Which of my supporting documents are displayed in EMTS documents?

    Documents generated by EMTS (Pending Trades, RIN Holdings, Transaction History, Expired Trades, and Completed Trades) can display a maximum of two supporting documents per transaction. If you enter more than two supporting documents for a transaction, EMTS sorts your supporting documents alphanumerically by supporting document number and displays the first two documents.

    For example, supporting document numbers '00123,' '00012', '50,' '6,' and 'a123' would be sorted in the following order: '00012,' '00123,' 6,' '50,' 'a123.' Only the first two supporting documents would be displayed in EMTS documents -- '00012' and '00123.'

  • How do I view numbers with leading zeros when I open EMTS documents in Excel?

    When viewing EMTS documents in Excel, the leading zeros are dropped from numeric fields like BatchNumberText if the data in the cell is composed entirely of numbers. For example, "00079" will be displayed as "79," but "00079a" will be displayed as "00079a." This behavior is a "feature" of Excel. There are two workarounds for this issue:

    1. Open the CSV file in a program like Notepad that displays the leading zeros; or
    2. Take the following steps to view the leading zeros in Excel:
      • Download the document (it will be contained in a .ZIP file).
      • Extract the .CSV file from the .ZIP file.
      • Rename the file extension to .TXT.
      • Open Excel and select the .TXT file.
      • The Text Import Wizard will appear. (If the Text Import Wizard does NOT appear, select the first column in the spreadsheet, and then navigate to Data | Text to Columns. This will open the Convert Text to Columns Wizard. Continue to next step.)
      • In Step 1 of the Text Import Wizard, choose "Delimited" as the Original Data Type and click Next.
      • In Step 2 of the Text Import Wizard, choose "Comma" as the Delimiter and click Next.
      • In Step 3 of the Text Import Wizard, scroll to the column that is not displaying leading zeros and select "Text" as the Column Data Format. Click Finish.

  • How do I correct a transaction error?

    For remedial action guidance, please visit: http://www.epa.gov/otaq/fuels/renewablefuels/compliancehelp/rfs2remedialactions.htm.

  • What if I do not submit my RIN transaction within five business days?

    You must enter Buy and Sell RIN transactions in EMTS regardless of how many days have passed. If a trade took place outside of EMTS expired in EMTS, the trade must be reinitiated by you or your trading partner with the original date specified on the PTD.

    All separation and generation transactions may not be entered in EMTS after 5 business days of the reportable event. Please visit the RFS2 Remedial Action webpage for more information.

  • How do I cancel transactions that I have initiated?

    To cancel a pending buy or sell transaction using the EMTS web application, navigate to Trades | Review Trades. On the Pending Initiated Transactions panel, locate the transaction that you want to cancel, and click the drop-down menu in the "I want to..." column. Select "Cancel Offer" and then click the Go button. You may provide an explanation for canceling the trade.

    To cancel a pending buy or sell transaction using an XML file, you must submit an identical transaction and use Buy/Sell Reason Code "60" (cancel). If you entered Supporting Document Text and Supporting Document Number when you initiated the transaction, the matching Cancel transaction must also contain those values. A cancel transaction must be submitted as a single transaction in an XML file. If a cancel transaction is submitted in an XML file with other transactions (including other cancel transactions), then the submission will fail.

  • How do I use the new daily document XML format?

    In addition to EMTS quarterly and annual reports, the EMTS daily documents are now available in XML format. On the Manage Subscriptions page of the EMTS web interface, users can subscribe to XML daily documents. To set up your organization's internal system to consume the reports and daily documents as XML files, see the latest reports schema (XSD) here.

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  • How do I obtain a NAAS ID?

    The Office of Transportation and Air Quality must approve your industry node before you can obtain a NAAS ID with privileges for the EMTS data flow. To obtain node approval, please send an email to EMTS Support at support@epamts-support.com with the following information:

    • Production CDX Account User ID;
    • Pre-production NAAS ID used for testing;
    • CDX Transaction ID of successful testing node submission; and
    • Request for a production NAAS ID that is mapped to your production CDX User ID and has all access privileges (i.e., Submit, GetStatus, Solicit, Query, and Download).

    EMTS Support will provide links to additional resources that describe the steps needed to test your node and obtain production access to the EMTS data flow.

  • How do I implement a data flow?

    For help enabling data flow between your node and the CDX node, please visit the Exchange Network site for EMTSExit EPA disclaimer to download documentation related to implementing the EMTS data flow, including:

    • Flow Configuration Document;
    • XML Schema;
    • Data Exchange Template; and
    • Sample XML Instance File.

  • Is there a node for .NET users?

    For users in a .NET environment, Windsor has the only open source .NET node solution, which is available here: http://code.google.com/p/opennode2Exit EPA disclaimer.

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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.

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