EMTS Fuels ABT User’s Guide 

Version 4.5 
EMTS Fuels ABT User’s Guide 

Version 4.5 

Compliance Division 

Offce of Transportation and Air Quality 

U.S. Environmental Protection Agency 

IMPORTANT REMINDER: 

Regulated parties are urged to conduct due diligence investigations and 

exercise caution when conducting gasoline sulfur and benzene credit 

transactions. Neither EPA nor its systems, including the EPA Moderated 

Transaction System (EMTS), certify or validate gasoline sulfur or benzene 

credits. As specifed in the regulations at 40 CFR 80.315(b)(2) and 40 CFR 

80.1295(b)(2), invalid gasoline sulfur and benzene credits cannot be used for 

compliance, regardless of the party’s good faith belief that the credits were 

valid at the time they were acquired. 

EPA-420-B-18-027 

May 2018 
December 2017 

Table of Contents 

Introduction............................................................................................................................................................................... 1 

Manage Fuels ABT Holdings................................................................................................................................................ 1 

Uploading Pre-2015 Unused Fuels ABT Credits......................................................................................................... 3 

Generating Fuels ABT Credits ............................................................................................................................................ 7 

Converting Excel Files to XML.......................................................................................................................................... 12 

Managing the Fuels ABT Transaction Bin ...................................................................................................................18 

Retiring Fuels ABT Credits ................................................................................................................................................ 22 

Trading Fuels ABT Credits (Buy & Sell).......................................................................................................................29 

Locking and Unlocking Fuels ABT Credits ..................................................................................................................38 

Viewing Historic Fuels ABT Holdings ...........................................................................................................................41 

Viewing Expired Fuels ABT Holdings............................................................................................................................42 

Receiving Notifications ....................................................................................................................................................... 43 

Receiving Documents........................................................................................................................................................... 44 

On-Demand Reports............................................................................................................................................................. 47 

EMTS Technical Support .................................................................................................................................................... 47 
 

 

 

 

 

 

 

 

 

 

 

December 2017 

Introduction 

This user’s guide is intended to help users transact credits for the Sulfur and Benzene Averaging, 

Banking, and Trading (ABT) program using the EPA Moderated Transaction System (EMTS). 

Manage Fuels ABT Holdings 

To view your Sulfur and Benzene ABT credit holdings, hover over Fuels ABT Credits on the main 

menu of the EMTS website and select Fuels ABT. Only Non-renewable Fuel Importers and Refiners 

may participate in the Fuels ABT program; if your organization is not registered with one of those 

business activities in the OTAQ Registration system (OTAQREG), you will not see the Fuels ABT 

Credits menu or any related functionality. The Manage Fuels ABT Holdings screen is organizationspecific (indicated by the organization name above the Fuels ABT Credit Holdings grid). To switch 

the organization for which you are viewing credit holdings, open the Organizations tab of the 

accordion in the top right corner of the screen, and click "Select a Different Organization." 

If you view the Manage Fuels ABT Holdings screen before your organization has completed any 

generate or buy transactions, the Fuels ABT Credit Holdings grid will be empty. At this point, you can

generate or buy Fuels ABT credits (the only valid transaction types when there are no Fuels ABT 

Holdings) by clicking the Generate (Refiner), Generate (Importer) or Buy button. If your organization

is only registered as either a non-renewable fuel importer or a refiner, then you will only see one 

“Generate” option. You can also buy and generate credits using the “I want to...” drop-down menu in 

the empty Fuels ABT Holdings grid. See the “Generating Fuels ABT Credits” section below for

additional information. 

Once you have completed a generate transaction or successfully purchased credits from a trading 

partner, the Fuels ABT Holdings grid will display your credits (see Figure 1). 

Fuels ABT EMTS User’s Guide 1 
 

 

 

 

 

 

 

 

 

 

 

December 2017 

Figure 1: Manage Fuels ABT Holdings Screen 

Each row in the Fuels ABT Holdings grid represents a unique combination of Credit Type and Credit 

Year. For each row, the sum of credits in the Available, Pending, and Reserved columns equals the

number of credits in the Total column. The credits in the Available column are credits that are 

available for you to use in transactions. The credits in the Pending column are credits that are 

involved in a pending sell transaction that you have initiated (see the “Trading Credits” section

below). The credits in the Reserved column are credits that are associated with transactions in the 

Fuels ABT Transaction Bin (see the “Managing the Credit Transaction Bin” section below). The 

credits in the Locked column are credits that have been locked to prevent their inclusion in trades. 

Fuels ABT Credits can be locked and unlocked using screens accessed from the ”I want to...” column

in the Fuels ABT Holdings grid (see the “Locking and Unlocking Fuels ABT Credits” section below). 

You can filter your credit holdings using the Filter Options and sort by clicking the column names. 

For example, you can arrange the data to compare the total number of credits EMTS has processed

in your account to your own off-line transaction records. These data are also available for download 

in a variety of formats. 

The final column in the Fuels ABT Holdings grid is the "I want to..." column. The drop-down for each 

row contains the options View Details, Generate, Buy, Sell, Retire (Obligation), and Retire (Other). If

you are registered as both a Refiner and a Non-renewable Fuel Importer, you will see two options for 

both Generate and Retire (Obligation). If you select a transaction in the "I want to..." column for a row

of Credits, the Credit Type and Credit Year fields in the resulting transaction wizard will be prepopulated with the data from that row. 

Fuels ABT EMTS User’s Guide 2 
 

 

 

 

 

December 2017 

Uploading Pre-2015 Unused Fuels ABT Credits 

In 2014 and 2015, the EPA Moderated Transaction System (EMTS) was modified to include Fuels 

Averaging, Banking, and Trading (ABT) program credits. As part of this transition, all pre-2015 

Unused Fuels ABT Credits must be uploaded into EMTS by using the Unused Credits Submission

Template (see Figure 2), which is an Excel file that can be found on the EMTS Documents page. 

Figure 2: Pre-2015 Unused Fuels ABT Credits Template 

The Template consists of five required columns: 

● Organization Identifier; 

● Credit Type; 

● Credit Year; 

● Quantity; and 

● Times Traded. 

Hovering your mouse over each column header reveals a comment describing what each field 

should include (see Figure 3 for an example). 

Figure 3: Pre-2015 Unused Fuels ABT Credits Template Comment 

● Organization Identifier refers to the four-digit EPA Company ID of the organization that

owns the credits. 

● Credit Type is the Credit Type Code of the unused credits. Sulfur has a code of 10 and 

Benzene has a code of 20. 

Fuels ABT EMTS User’s Guide 3 
 

 

 

December 2017 

● Credit Year is the year in which the gasoline was produced. Credits with any credit year

prior to 2015 can be entered in the Unused Credits Submission file. 

● Quantity is the quantity of unused credits and must be an integer. 

● Times Traded refers to the number of times in which the referenced set of credits has been 

traded. Valid values are "0", "1", or "2" since a credit can only be traded up to two times. 

An example submission is shown in Figure 4 below. 

Figure 4: Pre-2015 Unused Fuels ABT Credits Example Submission 

There are no restrictions to the number of rows you can enter in the Unused Credits template, as

long as each row is a valid entry and complies with the instructions for each field. 

After you have completed the Pre-2015 Unused Fuels ABT Credits Template, you will upload it on 

the Submit Pre-2015 Unused Fuels ABT Credits page (see Figure 5). This page is accessed by

hovering over the Fuels ABT Credits menu and then clicking the Pre-2015 Unused Credits menu 

item. The Pre-2015 Unused Fuels ABT Credits page is organization-specific, which means that after 

logging in you must select the same organization for which you are uploading unused credits. You 

can determine the organization in the top right corner of the screen and in the Organization 

accordion on the right. To switch organizations, you would click the "Select a Different

Organization" link. 

Fuels ABT EMTS User’s Guide 4 
December 2017 

Figure 5: Submit Pre-2015 Unused Fuels ABT Credits 

To upload your file, click the Browse button, select the file to upload, and then click the Open

button. Your file name will appear in the File field. Click the Upload button to continue the 

submission. 

Before your submission can be completed, you must confirm the submission on the Confirm Submit 

Pre-2015 Unused Fuels ABT Credits page (see Figure 6). 

Fuels ABT EMTS User’s Guide 5 
 

 

 

 

December 2017 

Figure 6: Confirm Submit Pre-2015 Unused Fuels ABT Credits 

On this page, you can view your upload details as well as your submission details. If any 

information is incorrect, you would need to cancel your submission by clicking the "Cancel" button.

You would then make the necessary corrections and re-upload your file. It is important to make 

sure that your data is correct before confirming the submission. 

Below the grid, you have several different export options if you would like to save your submission 

data for your records. 

If you navigate away from this page before clicking either the Cancel or Confirm Submit button, the

submission will be saved in the Pending Uploads table on the Submit Pre-2015 Unused Fuels ABT 

Credits page. 

To continue with the submission, click the Confirm Submit button. You will then be taken back to 

the Submit Pre-2015 Unused Fuels ABT Credits page (see Figure 7). 

Fuels ABT EMTS User’s Guide 6 
 

 

 

 

 

 

December 2017 

Figure 7: Submit Pre-2015 Unused Fuels ABT Credits – Submission Processed 

The message at the top confirms that your data has been submitted and you can see your 

submission in the Processed Uploads table below. To view the Upload and Submission Details for

any row, you would click the "Go" button in the "I want to..." column. 

Once you have successfully uploaded your data, you can view the resulting credits in your Fuels 

ABT Holdings. To access your holdings, select "Fuels ABT Holdings" from the Fuels ABT Credits 

drop-down menu. 

Generating Fuels ABT Credits 

From the Manage Fuels ABT Holdings screen, if your organization is registered as both a nonrenewable fuel importer and a refiner, you have the option to generate credits as either a refiner or

as an importer. If you organization is only registered as either a non-renewable fuel importer or a 

refiner, then you will only see one “Generate” option. To generate credits as a refiner, click the

Generate (Refiner) button or select Generate (Refiner) in the "I want to..." drop-down (or if you are 

only registered as a refiner, select the “Generate” option) and click Go. Doing so opens the first screen 

of the two-step Generate Wizard (see Figure 8). 

Fuels ABT EMTS User’s Guide 7 
 

 

 

 

 

 

 

 

December 2017 

Figure 8: Generate (Refiner) Wizard – Identify Production Source (Step 1) 

The following information is required to generate credits as a refiner: 

● Year for which the credits are being generated; 

● Organization generating the credits; 

● Generating facility; 

● Credit type (Sulfur or Benzene); and 

● Reason for generating the credits. 

The Generating Organization will be pre-populated and read-only. If you select Generate from the “I

want to...” column of an existing holding, then the Credit Year will also be pre-populated and readonly; otherwise, it will appear as a text field (as in Figure 2). If your organization only has one 

registered facility, then Generating Facility will also be pre-populated. 

Generating as an Importer has very similar first steps. From the Manage Fuels ABT Holdings screen, 

you may also generate credits as an importer. To do so, either click the Generate (Importer) button 

or select Generate (Importer) in the "I want to..." drop-down (or if you are only registered as an 

importer, select the “Generate” option) and click Go. Doing so opens the first screen of the two-step 

Generate (Importer) Wizard (see Figure 9). 

Fuels ABT EMTS User’s Guide 8 
 

 

 

December 2017 

Figure 9: Generate (Importer) Wizard – Identify Production Source (Step 1) 

The following information is required to generate credits as an importer: 

● Year for which the credits are being generated; 

● Organization generating the credits; 

● Facility generating the credits; 

● Credit type (Sulfur or Benzene; and 

● Reason for generating the credits. 

The Generating Organization will be pre-populated and read-only. If you select Generate from the “I

want to...” column of an existing holding, then the Credit Year will also be pre-populated and readonly; otherwise, it will appear as a text field (as in Figure 8). 

As both an importer and a refiner, once you have completed all of the required fields, click Generate 

Credits at the bottom of the screen to move to the second screen of the Generate Wizard. If all of 

the information on the Identify Production Source screen is valid, the next screen will be either the 

Generate Fuels ABT Credits (Sulfur) screen or Generate Fuels ABT Credits (Benzene) screen, based 

on the Credit Type you have selected. If your information is not valid or if you have not completed

all required fields, you will see error messages; see Figure 10 for an example of a validation 

message that you may encounter on this screen. 

Fuels ABT EMTS User’s Guide 9 
 

December 2017 

Figure 10: Quality Assurance Check Errors 

If you select Sulfur as your Credit Type, you will be directed to the Generate ABT Fuels Credits (Sulfur) 

screen (see Figure 11). 

Fuels ABT EMTS User’s Guide 10 
 

 

 

 

 

 

 

December 2017 

Figure 11: Generate Wizard – Generate ABT Fuels Credits (Sulfur) Screen (Step 2a) 

On this screen, you must enter the following information: 

● Average Sulfur Concentration; 

● Annual Volume; and 

● Quantity of Sulfur Credits. 

For standard refiner or importer generate transactions, the Quantity of Sulfur Credits that you enter 

must match the system calculated value (based on the Average Sulfur Concentration and Annual

Volume that you entered). If you are generating Sulfur Credits as part of a remedial action, the 

Quantity of Sulfur Credits must match the amount authorized by EPA. If an incorrect value is entered, 

you will receive an error message that will prevent you from adding your Credit Generate transaction 

to the Credit Transaction Bin. Entering additional information is optional. 

The information you entered on the previous screen will be displayed at the top of the screen in readonly format (see Figure 11). If you are generating as an importer, the Generating Facility field will

not be present. 

If you select Benzene as your Credit Type, you will be directed to the Generate Benzene Credits screen

(see Figure 12). 

Fuels ABT EMTS User’s Guide 11 
 

 

 

 

 

 

 

December 2017 

Figure 12: Generate Wizard – Generate Benzene Credits Screen (Step 2b) 

On this screen, you must enter the following information: 

● Average Benzene Concentration; 

● Annual Volume; and 

● Quantity of Benzene Credits. 

For standard refiner or importer generate transactions, the Quantity of Benzene Credits that you

enter must match the system calculated value (based on the Average Benzene Concentration and 

Annual Volume that you entered). If you are generating Benzene Credits as part of a remedial action,

the Quantity of Benzene Credits must match the amount authorized by EPA. If an incorrect value is 

entered, you will receive an error message that will prevent you from adding your Credit Generate 

transaction to the Credit Transaction Bin. Entering additional information is optional. 

The information you entered on the previous screen will be displayed at the top of the screen in readonly format (see Figure 12). If you are generating as an importer, the Generating Facility field will 

not be present. 

To complete the Generate Wizard, click the Add to Transaction Bin button. 

Converting Excel Files to XML 

EMTS includes functionality to convert an MS Excel file into a valid XML file. EPA provides a blank 

Excel template, which allows users to include all transaction types in one file. It includes general 

notes about submitting transactions, user-specific submittal information, and a tab for each 

Fuels ABT EMTS User’s Guide 12 
 

 

 

 

December 2017 

transaction type. The EMTS Excel Conversion Template can be found here: 

http://www2.epa.gov/fuels-registration-reporting-and-compliance-help/template-converting-msexcel-files-xml-epa. 

Important Notes: The transaction types must remain in the same order presented in the template 

and the template header rows also must remain unchanged to allow EMTS to process the file. 

Required columns have a header that is highlighted yellow. Additional information is included in 

column header comments and in the Notes tab. To view comments, hover over the header, as 

shown in Figure 13 below. 

Figure 13: Excel Conversion Template Comment 

To convert an Excel file into XML, navigate to Submissions Submit File from the main EMTS menu 

or the EMTS home screen (see Figure 14). 

Figure 14: EMTS Home Screen Submit File Options 

The Submit File screen is user-specific, so if you represent multiple organizations, you can submit 

files for all of your organizations from the Submit File screen without changing the organization 

that you represent. However, submissions for each organization must be included in a separate file 

Fuels ABT EMTS User’s Guide 13 
 

 

 

December 2017 

submission. From this screen, you may submit only one Excel file at a time. In addition, you may not 

submit multiple files with the same file name in a given calendar year (to prevent accidental 

duplication). 

On the Submit File screen (see Figure 15), click the Browse button to identify the Excel file you 

would like to convert. The tab order and name, as well as the header rows, must remain unchanged 

from the Excel Template. 

Figure 15: Submit File Screen 

Once you have identified a file, click the Convert button (see Figure 16). After clicking the Convert 

button, it may take some time to process, so please be patient. 

Fuels ABT EMTS User’s Guide 14 
 

December 2017 

Figure 16: Submit File Screen – Loading the File 

If your file was successfully converted from Excel to XML, the following screen will be displayed

(see Figure 17), which is a prompt to save the XML file to your computer. If your file had any errors 

during conversion, you will see the corresponding QA Check Errors appear on the Submit File

screen. Once you have corrected your errors, re-submit the file and click the Convert button. 

Fuels ABT EMTS User’s Guide 15 
 

December 2017 

Figure 17: Successful Conversion – Opportunity to Save XML File 

Once you have saved the XML file for your records, you are ready to submit it for processing. Click 

the Browse button to select the file and then click the Submit button from the Submit File screen, as 

shown in Figure 18. It may take some time to process, so please be patient and avoid clicking the 

Submit button again. 

Figure 18: Submit Converted Excel File 

Fuels ABT EMTS User’s Guide 16 
 

 

 

December 2017 

The file must first pass through the CDX node before it can be processed by the EMTS node. If your

file does not pass schema validation, you will receive an error message on the Submit File screen. If

your file is valid, the message on the Submit File screen will be updated to indicate that your file has

been submitted (see Figure 19). 

Figure 19: Submit File Screen 

To view the CDX node status details for your submission, click the View Submit File History button. 

You can also access the Submit File History screen by hovering over the Submissions menu option 

and clicking Submit File History. The Submit File History screen (see Figure 20), like the Submit File 

screen, is user-specific (not organization-specific), so it will include records for your submissions 

for all of your organizations. 

It will display information only for files submitted from the Submit File screen and not for files

submitted using a personal node or node client. If the ‘Received By CDX’ column displays ‘Yes’ for a 

submission, the submission was successfully received by the CDX node and has been sent to the 

EMTS node for processing. 

Fuels ABT EMTS User’s Guide 17 
 

December 2017 

Figure 20: Submit File History screen 

Test_file2.zip 

Test Company 

Managing the Fuels ABT Transaction Bin 

After you click Add to Transaction Bin, you are taken to the Fuels ABT Transaction Bin, where 

transactions will be stored temporarily until you are ready to submit them (see Figure 21). 

Fuels ABT EMTS User’s Guide 18 
 

 

 

 

 

 

 

December 2017 

Figure 21: Fuels ABT Transaction Bin 

The Fuels ABT Transaction Bin is organization-specific, so transactions added to the Transaction Bin

by any of your organization's submitters will be displayed on the screen. To switch the organization 

for which the Fuels ABT Transaction Bin is displayed, click Select a Different Organization. There is 

no restriction on the number of transactions that you can add to the Fuels ABT Transaction Bin. 

For all transactions in the Fuels ABT Transaction Bin, you have the option to View Details by selecting

View Details in the “I want to...” drop-down and clicking Go. You will be taken to a screen that displays 

all of the details of the credit submission and transaction. This screen can be used to verify the

contents of the transaction before submitting it. If you find that any information you entered is 

incorrect, you can remove the transaction via the “I want to...” drop-down. 

Along with accessing the Fuels ABT Transaction Bin at the end of each wizard, you can navigate to 

the Transaction Bin from multiple screens of the EMTS website using the Fuels ABT Transaction Bin

accordion tab on the right side of the screen (see Figure 22). The tab contains the number of unsubmitted transactions and a link to the Credit Transaction Bin. 

Fuels ABT EMTS User’s Guide 19 
 

 

 

 

 

 

 

 

 

 

 

 

December 2017 

Figure 22: Accessing the Transaction Bin 

Clicking the View Fuels ABT Transaction Bin link opens the Fuels ABT Transaction Bin. Note that the

credits associated with each sell and retire transaction in the Fuels ABT Transaction Bin are Reserved 

rather than Available (they show up in the Reserved column of the View Fuels ABT Holdings grid).

As a result, these credits may not be used for any other transactions. If a sell or retire transaction is 

removed from the Fuels ABT Transaction Bin, the associated credits return to an Available status. 

Credits associated with a generate transaction do not show up in the Fuels ABT Holdings grid until

the transaction is submitted from the Fuels ABT Transaction Bin, and credits associated with a buy 

transaction do not show up in the Fuels ABT Holdings grid until the transaction is submitted from

the Fuels ABT Transaction Bin and accepted by the trading partner. 

To complete a transaction, you must submit it from the Fuels ABT Transaction Bin by clicking the 

Submit button at the bottom of the screen. If you have multiple transactions in the Fuels ABT 

Transaction Bin, you must submit all of the transactions with the same Credit Year at once. If you do

not wish to submit one of the transactions in the bin, you can remove that transaction and submit the 

remaining transactions. You may not submit transactions across multiple Credit Years as part of a 

single transaction bin submission. If you have multiple transactions using RINs from different Credit 

Years, you need to select a Credit Year from the drop-down in the Fuels ABT Transaction Bin before 

submitting your transactions from your Fuels ABT Transaction Bin (see Figure 23). For example, if

you have a Credit Sell transaction for 2014 Sulfur credits and a Credit Retire transaction for 2015 

Sulfur credits in your Fuels ABT Transaction Bin, you must submit the transactions from 2014 and

2015 separately. 

Fuels ABT EMTS User’s Guide 20 
 

 

 

 

 

December 2017 

Figure 23: Fuels ABT Transaction Bin – Credit Year Options 

Note: Submitting a transaction that is acting upon a large number of credit batches may take several 

minutes, causing your browser to timeout. Please be patient and do not submit another transaction

until the transaction has completed and your Fuels ABT Holdings and Fuels ABT Transaction Bin 

reflect the results of that transaction. 

After you press Submit, you will be taken to a Confirm and Submit screen (see Figure 24), which 

displays an overview of the transactions you are about to submit. You must click the Confirm Submit

button to complete the submission. 

Fuels ABT EMTS User’s Guide 21 
 

 

 

 

 

 

 

December 2017 

Figure 24: Confirm and Submit Page 

Once you confirm the submission, your Fuels ABT Holdings will reflect the results of the submitted

transactions, and the Fuels ABT Transaction Bin will no longer contain the submitted transactions. 

Retiring Fuels ABT Credits 

You may choose to retire credits from your Fuels ABT Holdings. All organizations that participate in 

the Fuels ABT program (Non-renewable Fuel Importers and Refiners) are obligated parties and

therefore may retire credits for obligation, along with retiring credits for other reasons (see Figure 

25). 

Figure 25: Retire Options for an Obligated Party with Credits 

For a row of credits in your Fuels ABT Holdings, select the Retire (Other) option in the "I want to..."

drop-down, and click Go. Doing so will take you to the first step of the Retire (Other) Wizard (see 

Figure 26). 

Fuels ABT EMTS User’s Guide 22 
 

 

 

 

 

 

 

December 2017 

Figure 26: Retire (Other) Wizard – Identify Credits (Step 1) 

The green boxes on the right side of the screen indicate which of the two steps of the Retire Wizard

you are completing. The following information is required to retire credits for reasons other than 

compliance: 

● Credit Type; 

● Credit Year; 

● Number of times the credits have been traded; 

● Quantity of credits; 

● Transaction Date; and 

● Reason for the retire transaction. 

All required fields are marked with a red asterisk. The Credit Type and Credit Year fields are 

automatically populated with the information from the row of credits that you selected to retire from 

your Fuels ABT Holdings grid. In the Reason for Retire field, only the reasons that are applicable to 

Fuels ABT EMTS User’s Guide 23 
 

 

 

 

 

 

 

 

 

 

 

 

December 2017 

your organization's registered business activities are available. The Retire Wizard also contains a 

document grid you can use to specify the name and identifier of one or more documents that support

the retire transaction. Note that the document itself cannot be uploaded. To add document 

information to the grid, fill in the Document Type and Document Identification fields, and click Add.

Doing so will add a row to the documents grid. For more information, see the Separating RINs section 

of the EMTS User’s Guide. 

The Retire (Obligation) process has similar first steps. If your organization is either a refiner or a nonrenewable fuel importer, you will be provided with the option “Retire (Obligation)”. If your

organization is both a refiner and a non-renewable fuel importer, you have the Retire (Obligation) 

options “as Refiner” and “as Importer” available. For a row of credits in your Credit Holdings, select

the “as Refiner” option in the "I want to..." drop-down on the Manage Credit Holdings screen (or if 

you are only registered as a refiner, select the “Retire (Obligation)” option). Note also the presence 

in Figure 25 of two grayed-out options, “Remedial Retire for Compliance (Refiner)” and “Remedial

Retire for Compliance (Importer)”. These options become available whenever EPA has authorized a 

remedial retire for compliance for your company. If you are submitting a remedial retire to meet an

obligation as a refiner, select “Remedial Retire for Compliance (Refiner)”. Once the appropriate 

selection has been made, you will be taken to the first step of the Retire (Obligation) Wizard for a 

refiner (see Figure 27). 

Fuels ABT EMTS User’s Guide 24 
 

December 2017 

Figure 27: Retire (Obligation) as Refiner Wizard – Identify Credits (Step 1) 

The following information is required to retire credits for compliance as a refiner: 

● Credit Type; 

● Credit Year; 

● Quantity of Credits; 

● Transaction Date; 

● Reason for Retire; 

● Compliance Level; 

● Compliance Year; and 

● Compliance Facility. 

Fuels ABT EMTS User’s Guide 25 
 

 

 

 

 

 

 

 

December 2017 

All required fields are marked with a red asterisk. Credit Type and Credit Year are automatically 

populated with the information from the row of credits in the Credit Holdings grid that you selected

to retire. The Reason for Retire and Compliance Level fields are read-only and populated based on 

your Retire (Obligation) as Refiner selection from the previous screen. This screen contains a

document grid you can use to specify the name and identifier of one or more documents that support 

the retire transaction. Note that the document itself cannot be uploaded. To add document 

information to the grid, fill in the Document Type and Document Identification fields, and click Add.

Doing so will add a row to the documents grid. 

There is one primary difference between retiring as a refiner and retiring as an importer. Refiners 

must specify a Compliance Facility, while importers do not. Additionally, the two transactions use

different Compliance Level Codes. To begin the Retire (Obligation) process as an importer, pick a row 

of credits in your Fuels ABT Holdings and select the “as Importer” option in the "I want to..." dropdown on the Manage Credit Holdings screen (or if you are only registered an importer, select the

“Retire (Obligation)” option). If you are submitting a remedial retire to meet an obligation as an 

importer, select “Remedial Retire for Compliance (Importer)”. Once the appropriate selection has

been made, you will be taken to the first step of the Retire (Obligation) Wizard for an importer (see 

Figure 28). 

Fuels ABT EMTS User’s Guide 26 
 

 

 

December 2017 

Figure 28: Retire (Obligation) as Importer Wizard – Identify Credits (Step 1) 

The following information is required to retire credits for compliance as an importer: 

● Credit Type; 

● Credit Year; 

● Quantity of Credits; 

● Transaction Date; 

● Reason for Retire; 

● Compliance Level; and 

● Compliance Year. 

All required fields are marked with a red asterisk. Credit Type and Credit Year are automatically 

populated with the information from the row of credits in the Fuels ABT Holdings grid that you 

Fuels ABT EMTS User’s Guide 27 
 

 

 

 

 

 

 

 

 

December 2017 

selected to retire. The Reason for Retire and Compliance Level fields are read-only and populated 

based on your Retire (Obligation) as Importer selection from the previous screen. This screen

contains a document grid you can use to specify the name and identifier of one or more documents 

that support the retire transaction. Note that the document itself cannot be uploaded. To add 

document information to the grid, fill in the Document Type and Document Identification fields, and 

click Add. Doing so will add a row to the documents grid. 

For all retire transactions, when you complete the Identify Credits screen click Advanced Credit 

Selection at the bottom of the screen to navigate to the second screen of the Retire Wizard. On the 

Advanced Credit Selection screen, you have the option of selecting the specific group of credits (by 

originating source information) that you wish to retire. If you do not wish to make any selections on

this screen, click Add to Transaction Bin at the bottom of the screen to continue. In this situation, if 

you did not specify a Times Traded value on the Identify Credits screen, EMTS will automatically 

retire the credits in your Fuels ABT Holdings that have been traded the most number of times.

Alternatively, you may use this screen to identify a specific originating organization, or organization 

and facility. Once you have specified the originating source information, click Add to Transaction Bin 

to continue. After you submit the retire transaction from the Fuels ABT Transaction Bin, the credits 

will be removed from your Fuels ABT Holdings. 

To view the total number of Fuels ABT Credits your organization has retired for obligation, select 

Fuels ABT Compliance under the Reports main menu option. On the View Aggregate Fuels ABT

Credits Retired for Obligation screen, the retired Fuels ABT quantities are aggregated by Credit Type, 

Credit Year, Compliance Year, Compliance Level, and Total Credits. For organizations that retire at 

the Facility level, the Fuels ABT quantities are also aggregated by Facility. For organizations that 

have not retired any Fuels ABT Credits for obligation, the grid on this screen will be empty. 

Fuels ABT EMTS User’s Guide 28 
 

 

 

 

 

 

 

 

December 2017 

Trading Fuels ABT Credits (Buy & Sell) 

You can initiate a trade from your Fuels ABT Holdings screen. To initiate a sell transaction, you must

have credits in your Fuels ABT Holdings. The following information is required to initiate a trade 

through a sell transaction: 

● Credit Type; 

● Credit Year; 

● Times Traded; 

● Quantity of Credits; and 

● Reason for Credit Sale. 

For a row of credit data in your Fuels ABT Holdings grid, select Sell in the "I want to..." drop-down, 

and click Go. Doing so will take you to the first screen of the Sell Wizard (see Figure 29). 

Figure 29: Sell Fuels ABT Credits – Identify Credits (Step 1) 

The green boxes on the right side of the screen indicate which of the four steps of the Sell Credits

Wizard you are completing. All required fields are marked with a red asterisk. The Credit Type and 

Credit Year fields are automatically populated with the information from the row of credits in the

Fuels ABT Holdings grid that you selected to sell. You can change these values if there is another 

Fuels ABT EMTS User’s Guide 29 
 

 

 

 

 

 

 

December 2017 

group of credits in your holdings that you would like to sell. Once you complete the information on 

this screen, click Select Trading Partner to move to the next screen. 

On the Select Trading Partner screen, you must identify a trading partner from a list of organizations

that satisfy the search criteria. You can search for an organization by Organization Name or 

Organization ID. In Figure 30, the organization names were filtered on the word "RA," and RAP Inc. 

Gen EtOH was selected from the options. The trading partner organization must be registered in the

OTAQ Registration system to trade Sulfur or Benzene credits. 

Figure 30: Sell Credits – Select Trading Partner 

When you have selected your Trading Partner, click the Transaction Details button to move on to the 

next screen. On the Sell Credits – Transaction Details and Documents screen, you must enter the 

Transfer Date. 

You may also enter a Matching Transaction Identifier. This element allows users to accept specific 

buy/sell transactions in the case of several similar transactions. It is the unique transaction identifier 

Fuels ABT EMTS User’s Guide 30 
 

 

 

 

 

 

 

December 2017 

assigned by EMTS to an initiated trade. When accepting a trade, users can include this element in 

the trade matching criteria (along with the other trade matching criteria currently in effect). If this 

element is reported, EMTS will attempt to locate a matching transaction based on the Matched 

Transaction Identifier and the other matching criteria provided. If a match is not found, then the 

transaction will fail. If this element is not reported, then it will not be used in the trade matching (but 

all other required matching elements will still apply). 

You can also provide a Product Transfer Document (PTD) number and other additional information. 

The Transaction Details and Documents screen contains a document grid you can use to specify the

name and identifier of one or more documents that support the sell transaction. Note that the 

document itself cannot be uploaded. To add document information to the grid, fill in the Document

Type and Document Identification fields, and click Add. When you have completed this screen, click 

Advanced Credit Selection to move to the final screen of the Sell Wizard. 

On the Advanced Credit Selection screen, you have the option of specifying the credits that you wish 

to sell (by originating source information). If you do not wish to specify originating source

information, click Add to Transaction Bin at the bottom of the screen to continue. Alternatively, you 

may use this screen to identify a specific originating organization, or organization and facility. Once 

you have specified the originating source information, click Add to Transaction Bin to continue. After 

you submit the sell transaction from the Fuels ABT Transaction Bin, if it has not been matched, the 

transaction will be in a pending state, and the credits associated with the sale will be in the Pending

column of the Fuels ABT Holdings grid (see Figure 31). The credits will remain in the Pending column 

until the trading partner accepts or denies the sell transaction. 

Figure 31: Pending Credits in Fuels ABT Holdings Grid 

The following information is required to initiate a buy transaction: 

● Credit Type; 

● Credit Year; 

● Times Traded; 

● Quantity of Credits; and 

● Reason for Credit Buy. 

Fuels ABT EMTS User’s Guide 31 
 

 

 

 

 

 

 

 

 

 

December 2017 

To initiate a buy transaction, go to the Manage Fuels ABT Holdings screen, and either click the Buy 

button below the Fuels ABT Holdings grid or select Buy in the "I want to..." drop-down for a row in

the Fuels ABT Holdings and click Go. If you select Buy for an existing row in the Fuels ABT Holdings 

grid, the Credit Type and Credit Year in the Buy Wizard will be pre-populated with information from

that row. You can change these values if there is another group of credits that you would like to buy. 

The green boxes on the right side of the screen indicate which of the three steps of the Buy Credits

Wizard you are completing. All fields marked with a red asterisk are required. On the Identify Credits 

screen, you must provide Credit Type, Credit Year, Times Traded, and Quantity of Credits. 

You also have the option of using the Advanced Credit Selection fields to specify originating source

information for the credits that you wish to buy. To access the Advanced Credit Selection, click the 

“Advanced Credit Selection (Optional)” tab. Once open, you will be able to access the Advanced Credit 

Selection fields (see Figure 32). To specify the originating source for a buy transaction, you will need

to know the Organization ID for the originating organization. Once you complete the Identify Credits 

screen of the Buy Wizard, click Select Trading Partner. 

Figure 32: Buy Credits – Identify Credits (Step 1) 

The Select Trading Partner and the Transaction Details and Documents screens of the Buy Wizard 

have the same behavior as the corresponding screens in the Sell Wizard. For buy transactions, the

trading partner organization must be registered in the OTAQ Registration system to trade Fuels ABT 

credits (see Figure 33). 

Fuels ABT EMTS User’s Guide 32 
 

 

 

 

 

December 2017 

Figure 33: Buy Credits – Select Trading Partner (Step 2) 

When you have selected your Trading Partner, click the Transaction Details button to move on to the 

next screen. On the Buy Credits – Transaction Details and Documents screen, you must enter the 

Transfer Date. Again, you may also provide a PTD Number, Matching Transaction Identifier, 

Additional Information, and Document Information. 

From the Transaction Details and Documents screen, click Add to Transaction Bin. Submit the 

transaction from the Fuels ABT Transaction Bin to complete the buy transaction. At this point, if the 

transaction was not matched, it will be in a pending state, and the transfer of credits will not be

reflected in your Fuels ABT Holdings grid until your trading partner accepts the buy transaction. 

To view the pending transaction(s) that your organization has initiated or received (as the result of

another organization initiating a transaction with your organization indicated as the trading 

partner), hover over Trades on the main menu and select Review Fuels ABT Trades. The Review 

Credit Trades screen is organization-specific (see Figure 34). To switch the organization for which 

Fuels ABT EMTS User’s Guide 33 
 

 

 

 

December 2017 

the screen is displayed, open the Organizations tab of the accordion on the right side of the screen, 

and click Select a Different Organization. 

Figure 34: Review Credit Trades Screen 

The Review Credit Trades screen includes a number of filter options that you can use to search for

specific initiated or received credit buy or credit sell transactions. The labels on the Pending Credit 

Transactions tabs include the number of transactions within each tab. In Figure 35, the organization 

has two Pending Initiated Credit Transactions and zero Pending Received Credit Transactions. In the 

Review Credit Trades accordion, only one panel can be open at a time, so to open the Pending 

Received Credit Transactions panel of the accordion, you would click Pending Received Credit 

Transactions. As a result, the Pending Initiated Credit Transactions panel would close. 

Fuels ABT EMTS User’s Guide 34 
 

 

 

 

 

 

 

 

December 2017 

For Pending Initiated Credit Transactions, you can select View Details in the "I want to..." drop-down 

to view the details of the transaction, or you can select Remove to cancel the trade (see Figure 35). If 

you choose Remove, you will be asked to confirm the cancellation, and the transaction will no longer

appear in your Pending Initiated Credit Transactions (or your trading partner's Pending Received 

Credit Transactions). 

Figure 35: Pending Initiated Credit Transactions Options 

For Pending Received Credit Transactions, you can select View Details, Accept Offer, or Deny Offer in 

the "I want to..." drop-down (see Figure 36). 

Figure 36: Pending Received Credit Transactions Options 

If you deny the offer, you will see the details of the transaction that you are denying, and you will 

need to provide an explanation for denying the trade (see Figure 37). Once you press Confirm Deny,

the transaction will no longer appear in your Pending Received Credit Transactions (or your trading 

partner's Pending Initiated Credit Transactions). 

Fuels ABT EMTS User’s Guide 35 
 

 

December 2017 

Figure 37: Deny Credit Trade Screen 

If you select Accept Offer, you will see the details of the transaction, and you will have the option of

adding transaction details and document information (see Figure 38). Note that the document itself 

cannot be uploaded. To add document information to the grid, fill in the Document Type and

Document Identification fields, and click Add. 

Fuels ABT EMTS User’s Guide 36 
 

 

 

 

 

 

 

December 2017 

Figure 38: Accept Credit Trade Screen 

To report a PTD number for your transaction, enter the number in the "PTD" field. If you do not 

enter a PTD number, your transaction details will not include a PTD number. Note that this field is 

not automatically carried over from your trading partner's transaction. 

Once you click Confirm Accept, the transaction will no longer appear in your Pending Received Credit 

Transactions (or your trading partner's Pending Initiated Credit Transactions), and the results of the

trade will be reflected in your Credit Holdings. 

If you select View Details for a Pending Received Credit Transaction, you will see the details of the

transaction along with the option to either accept the trade or deny the trade. Clicking Deny Trade 

will take you to the Deny Credit Trade screen (see Figure 37), and clicking Accept Trade will take you

to the Accept Credit Trade screen (see Figure 38). 

Fuels ABT EMTS User’s Guide 37 
 

 

 

 

 

 

 

 

 

 

December 2017 

As described earlier in this section, a trade can be completed if one trading partner initiates a trade

through a Buy/Sell Wizard, and the other partner then accepts the initiated trade from the Review 

Credit Trades screen. Trades can also be completed in the following ways: 

● Both trading partners submit XML files for a trade (one buy and one sell); 

● One trading partner completes a buy/sell transaction on the web application, and the other 

trading partner submits a matching XML file for the corresponding transaction; or 

● One trading partner completes a buy transaction on the web application, and the other

trading partner completes a matching sell transaction on the web application. 

In all of these instances, the following fields must match for the trades to match: 

1. Transfer Date; 

2. Credit Year; 

3. Credit Type; 

4. Times Traded; 

5. Quantity; and 

6. Reason Code (except for Deny). 

In addition, 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). Several fields, if provided, must also match, including 

the originating source information – Generating Organization Identifier and Generating Facility

Identifier – and the Matching Transaction ID. 

If these fields do not match, then the trades submitted by both trading partners via XML or web 

application will be considered pending initiated trades. 

Locking and Unlocking Fuels ABT Credits 

To lock batches in a row of the Fuels ABT Holdings grid, select Lock in the "I want to..." column and

click Go (see Figure 39). 

Fuels ABT EMTS User’s Guide 38 
 

 

 

 

 

December 2017 

Figure 39: Manage Fuels ABT Holdings Details Screen 

The Lock – Identify Fuels ABT screen displays the details of the Fuels ABT credits that you are about

to lock along with a required Additional Information field (see Figure 40). 

Figure 40: Lock –Identify Fuels ABT Screen 

After you enter a comment and click Advanced Credit Selection, you will move to the Lock-Advanced

Credit selection screen. This will allow you to specify the organization and facility that generated the 

Fuels ABT Credits you wish to lock. This selection is optional. 

Fuels ABT EMTS User’s Guide 39 
 

December 2017 

Figure 41: Lock –Advanced Credit Selection 

Once you have clicked the Add to Transaction Bin button, you will go to the Transaction Bin screen 

where you can submit the Lock transaction as you would any other transaction. 

Fuels ABT EMTS User’s Guide 40 
 

 

December 2017 

Viewing Historic Fuels ABT Holdings 

To view information for Fuels ABT Credits that your organization previously owned but has since 

removed from its Fuels ABT Holding Account, select View Fuels ABT Holdings (History) under Fuels 

ABT on the EMTS main menu. The View Fuels ABT Holding History screen contains details of your 

organization's retire and sell transactions (i.e., transactions that remove Fuels ABT Credits from your 

Fuels ABT holdings) (see Figure 39). 

Figure 42: View Fuels ABT Holding History Screen 

Fuels ABT EMTS User’s Guide 41 
 

 

 

 

 

 

December 2017 

This screen is organization-specific; to switch the organization for which the screen is displayed, 

open the Organizations tab of the accordion on the right side of the screen, and click Select a 

Different Organization. The Fuels ABT Holding History grid provides an overview of each retire and 

sell transaction performed on behalf of the organization indicated above the grid. To filter the Fuels 

ABT Holding History grid to look for a particular transaction, use the filter options in the Search for 

Transactions box, and click Search. To view the details of a transaction in the grid, select View 

Details in the "I want to..." drop-down and click Go. 

Viewing Expired Fuels ABT Holdings 

To view information for Fuels ABT Credits that your organization previously owned but have since 

expired, select View Fuels ABT Holdings (Expired) under Fuels ABT on the EMTS main menu. The 

Expired Fuels ABT Holding screen contains details of your organization's expired Fuels ABT credit 

holdings (see Figure 40). 

Figure 39: View Expired Fuels ABT Holding Screen 

This screen is organization-specific; to switch the organization for which the screen is displayed, 

open the Organizations tab of the accordion on the right side of the screen, and click Select a 

Different Organization. To filter the Fuels ABT Holding History grid to look for particular credits, 

use the filter options in the Basic Filter Options box, and click Filter. 

Fuels ABT EMTS User’s Guide 42 
 

 

December 2017 

Receiving Notifications 

EMTS can communicate information to users by sending notifications via email. Some notifications 

will be sent immediately while others will be aggregated and sent nightly. The current version of 

EMTS includes a number of immediate notifications, such as the Initiated Fuels ABT Trade Cancelled 

notification and the Fuels ABT Trade Denied notification, along with several aggregated daily 

notifications, such as the Pending Fuels ABT Trades. For a complete list of notifications, see Appendix

E of the Flow Configuration Document, on the EMTS Documents screen. 

To receive these notifications, you must first subscribe to the notifications from the Fuels ABT 

Subscriptions screen (see Figure 41) (click Fuels ABT Subscriptions under the Reports menu option). 

Users will be automatically subscribed to some notifications. 

Figure 40: Fuels ABT Subscriptions 

To subscribe to a notification, click Go in the "I want to..." column. On the Manage Subscription screen 

for that notification, check the “Subscribed” checkbox. For the immediate notifications, the frequency 

Fuels ABT EMTS User’s Guide 43 
 

 

 

 

 

 

 

 

 

December 2017 

will be “Immediate,” and for the daily notifications, the frequency will be “Daily.” All notifications 

will be text format and will be delivered via email. All subscriptions are organization specific, so if

one submitter for an organization subscribes to a notification, then all submitters for that 

organization will receive the notification. 

Receiving Documents 

EMTS also creates various reports and documents that include information about data submitted for

your organization. These documents can be accessed from the EMTS website (click View Fuels ABT 

Reports under the Reports menu item) or retrieved from the EMTS node. 

For more information on the available documents, please see the EMTS Document Descriptions file 

on the EMTS Documents screen. 

To download the documents from the EMTS website or retrieve them using a personal node or node 

client, you must first subscribe to them from the Fuels ABT Subscriptions screen (see Figure 37) (click 

Fuels ABT Subscriptions under the Reports menu option). 

Note: If you subscribe to a document and then do not download the document within 22 business 

days, you will be automatically unsubscribed from that document. You will receive an email 

notification before and after the system performs this action. You may re-subscribe to the document 

at any time. 

On the Fuels ABT Subscriptions screen, click Go in the "I want to..." column to update the subscription 

for a specific document. On the Manage Subscription screen for that document, check the

“Subscribed” checkbox to subscribe to the document. If the document is available at multiple 

frequencies (i.e. Daily and three-per-day), select the desired frequency. Documents can be received 

in CSV or XML format and can be downloaded from the EMTS website or from the EMTS node using 

a node or a node client. 

After you subscribe to a document, you will be able to download the documents with a daily 

subscription frequency the following morning and the documents with a subscription frequency of

three times per day at the next document generation interval. Three-per-day reports are generated 

at 1AM, 1PM, and 6PM. Weekly reports are generated Sunday mornings. You can download the 

documents from the View Fuels ABT Reports screen (see Figure 42) (click View Fuels ABT Reports

under the Reports menu option). 

Fuels ABT EMTS User’s Guide 44 
 

 

 

 

December 2017 

Figure 41: View Fuels ABT Reports 

The grid on the View Fuels ABT Reports screen displays the documents to which you have subscribed.

You will also be able to see the frequency you have selected for each report or document and the last 

run time for each document. To access the latest version of a document, select Download Document 

in the "I want to..." drop-down. To access a prior version of the document, select View All Documents 

in the "I want to..." drop-down. 

When you select Download Document and click Go, you will see a window asking you to either open 

or save the ZIP file (see Figure 43). After you open the ZIP file, you will be able to access the document. 

Fuels ABT EMTS User’s Guide 45 
 

 

 

 

 

December 2017 

Figure 42: Download Document Window 

For information on how to retrieve these documents using your personal node or node client, please

refer to Section 6 of the EMTS Flow Configuration Document, which can be downloaded from the 

Exchange Network website http://www.exchangenetwork.net/exchanges/air/emts.htm. 

The following documents are available to Fuels ABT users: 

● Cancelled Fuels ABT Trades: This document, available weekly, nightly, or three times per day, 

lists all trades that have been cancelled within the past 10 calendar days. 

● Completed Fuels ABT Trades: This document, available weekly, nightly, or three times per

day, lists all trades that have reached their final status (completed, cancelled, expired, or 

denied) within the past 10 calendar days. 

● Expired Fuels ABT Trades: This document, available weekly, nightly, or three times per day, 

lists all trades that expired within the past 10 calendar days. 

● Fuels ABT Annual Activity Compliance Report: This document, available on an annual basis, 

is a zip file that contains four separate files: an aggregate total section (Fuels ABT Aggregated

Activity, Fuels ABT Generate Transactions, Fuels ABT Retire for Compliance Transactions, 

and Transaction Details). 

● Fuels ABT Credit Holdings: This document, available on a nightly basis or three times per day,

lists the current aggregate total Fuels ABT Holdings for an organization grouped by fuel code, 

assignment and Credit year. This report is also available “on-Demand” for node users (see 

section called “On-Demand Reports” below). 

Fuels ABT EMTS User’s Guide 46 
 

 

 

 

 

 

 

 

 

 

December 2017 

● Fuels ABT Transaction Status: This document, available nightly, includes transaction activity 

for the previous day. 

● Monthly Fuels ABT Credit Holdings: This document lists information about daily Fuels ABT 

credit holdings for the last calendar month. 

● Monthly Fuels ABT Transaction History: This document, available on a monthly basis, lists all 

generate, separate, buy, sell and retire transactions submitted by an organization through

XML files or the EMTS web interface during the prior month. The Monthly Fuels ABT 

Transaction History document is created for the prior month’s transactions on the first 

Saturday of every month. 

● Pending Fuels ABT Trade Details: This document, available on a nightly basis or three times

per day, lists the Fuels ABT batch details of all pending initiated and pending received trades 

for an organization. 

● Pending Fuels ABT Trades: This document, available on a nightly basis or three times per day, 

lists the details of all pending initiated and pending received trades for an organization. This 

report is also available “on-Demand” for node users (see section called “On-Demand Reports” 

below). 

On-Demand Reports 

Node users can solicit two “on-demand” reports. These reports are only available in XML format

and cannot be subscribed to through the EMTS web application. After a node user sends a solicit 

request to the EMTS node, EMTS will generate a report of all transactions up to the second that the 

solicit request was received. 

● On-Demand Fuels ABT Holdings: This document lists the current aggregate total Fuels ABT

Holdings for an organization grouped by fuel code, assignment and credit year. 

● On-Demand Pending Fuels ABT Trades: This document lists the details of all pending initiated 

and pending received trades for an organization. 

EMTS Technical Support 

If you have any questions or want to report defects, comments, enhancements, or feedback, you 

may contact EMTS Technical Support at support@epamts-support.com, Monday – Friday, 9:00 a.m. 

to 5:00 p.m. (EST). Additionally, to access contact information for the various EMTS support lines, 

you can click the "Contact Us" link located on each screen of EMTS. When reporting defects or

issues, please provide the detailed steps that were taken to create the problem or issue, and provide 

screen shots to document the web page and information entered on that page. In addition, there are 

"Help" links on each screen of EMTS that provide access to EMTS resources on the EPA's EMTS 

website. 

Fuels ABT EMTS User’s Guide 47