Step-By-Step EPA CDX Upload 

Instructions for Nonroad Engine 

Manufacturers 
Step-By-Step EPA CDX Upload 


Instructions for Nonroad Engine 


Manufacturers 


Compliance and Innovative Strategies Division 

Office of Transportation and Air Quality 

U.S. Environmental Protection Agency 

EPA420-B-08-010 

April 2008 
Overview 

The Verify system provides a Web interface to the EPA and California Air Resources Board 

(CARB). Using this interface, authorized users are able to create, edit, save, load, and validate 

their data for submittal to EPA, once their CDX accounts have been established. Below is the 

CDX site link for Nonroad Confirmatory Testing for Small Spark-Ignition (SI) and CompressionIgnition (CI) Engines (http://www.epa.gov/otaq/cert/eng-cert/confirmatory/index.htm). 

Step 1. Establish a Manufacturer Code and CDX User Account 

This document provides step-by-step guidance to lead you through the necessary steps 

for using the Environmental Protection Agency (EPA) Verify compliance information 

system to submit your engine test data for the National Vehicle and Fuel Emissions 

Laboratory (NVFEL) engine testing program. To send documents to EPA you must first 

do the following: 

1. Request an EPA Manufacturer Code. 

2. Create CDX user accounts for everyone that will be submitting data to EPA. 

Once you have your EPA manufacturer code and CDX user accounts you must 

complete the Small SI Confirmatory Test Engine Information for a Spark-Ignition engine 

or the CI Confirmatory Test Engine Information for a Compression-Ignition engine. 

1
1. Click here to receive 

your EPA 

manufacturer code and 

your CDX user 

accounts. 

2. Enter your test 

information with 

the forms provided 

here. 

3. Click here to 

begin upload 

process. 

Step 2. Fill out Your Test Setup Data Form 

Once you have established an EPA manufacturer code and a CDX user account 

you should begin to enter your test setup data in the provided Smart 

Spreadsheet (please see 2 above). 

• If you are requesting testing for a Spark Ignition engine please click the 

link to “Small SI test Documents” and the link to Small SI Confirmatory 

Test Engine Information”. (See Smart Sheet page in Appendix 1) 

• If you are requesting testing for a compression-ignition engine please click 

the link to “CI Test Documents” and “CI Confirmatory Test Engine 

Information”. (See Smart Sheet page in Appendix 1) 

Please fill in the appropriate information in your spreadsheet. 

Step 3. Log In to CDX to Upload Your Test Setup Data 

Now that the test information is complete you may send that test setup document 

to EPA by clicking on the “CDX site” link. 

(Note: You must have a manufacturer code to do business with EPA and a CDX 

user account to upload your information. If you do not have an EPA 

manufacturer code and/or a CDX user account please proceed back to step 1 

above and complete your registration). 

a) You will be directed to the page below. Please read the “warning” and 

“privacy” notices and click the “click here to continue” link. (See below). 

2
Please read 

then click 

here to 

continue. 

b) At this point manufacturers should have a CDX user account. You should 

select the link for those that already have a password and CDX user ID. (See 

below). 

Please click 

this link! 

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c) You will be directed to this page to enter your CDX User Name and 

Password. Please enter your User Name and Password to Log-in to your CDX 

user account. 

Enter your 

assigned CDX 

User Name 

and Password 

d) You will now be directed to the entry page for My CDX. You can check your 

inbox for EPA messages and test results. Please select “Verify Upload 

Supporting Documents” to go to your upload page. 

You can retrieve 

EPA messages 

and test results in 

your inbox. 

Click here to 

go to your 

upload screen. 

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1. Upload your 

Smart Sheet here. 

You can upload 

additional 

documents in 

alternate formats as 

well! 

2. Select the 

Industry category 

for your engine. 

3. Select your 

Compliance 

Document type 

here. 

4. Is the information 

Confidential Business? 

5. Please 

include your 

business 

information. 

6. Review and 

finalize before 

completing 

your upload. 

5
Please follow the step-by-step walk through on the page above. 

Support

There are three support options available for general and technical questions related to Verify: 

1. Telephone - Call our toll-free line at (888) 890-1995 and select option 4 for technical 

questions regarding data or uploading your documents. Select option 5 for help with 

your CDX registration(i.e. userid/password) questions.. 

2. E-mail – Send e-mail to epacdx@csc.com for help with your CDX registration(i.e. 

userid/password) questions. Send an e-mail to verifyhelp@csc.com technical questions 

regarding data or uploading your documents. 

3. Fax - Assistance with your CDX registration (i.e. userid/password) questions or 

requests are accepted 24 hours a day at (301) 429-3905. Support personnel will respond 

to faxed requests Monday - Friday from 8:00 a.m. - 6:00 p.m. (EST). 

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Appendix 1 

Accessing your test data Smart Spreadsheet 

You may access your EPA test data Smart Sheet by clicking on the appropriate 

test engine link below. Manufacturers on this screen will choose either a Small 

Spark-Ignition engine manufacturer or a Compression-Ignition engine 

manufacturer for testing. 

Small S-I 

Smart Sheet 

C-I Smart Sheet 

For specific examples see forms below. 

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1. For Spark-Ignition Engines 

2. For Compression-Ignition Engines 

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