Manufacturers Annual Reporting

7/3/25, 2:45 PM

Certification and Fuel Economy for Light-Duty Passenger Cars and Trucks | US EPA

Certification and Fuel
Economy for Light-Duty
Passenger Cars and Trucks
Follow these steps for certification.

STEP 1: Confirm that
you have access to
Engines and Vehicles
Compliance
Information System
(EV-CIS).

Related Topic
For all onroad, see:
Onroad Vehicles
and Engines

You must register with EPA to gain access to EV-CIS
for the specific manufacturer code  for which you are
seeking certification.
How to register for EV-CIS

You must also set up an account with EPA to establish the necessary EV-CIS roles.
Account setup for EV-CIS

https://www.epa.gov/ve-certification/certification-and-fuel-economy-light-duty-passenger-cars-and-trucks

1/6

7/3/25, 2:45 PM

Certification and Fuel Economy for Light-Duty Passenger Cars and Trucks | US EPA

STEP 2: Update manufacturer
information in EV-CIS.
To update information, users must have the "Maintain Manufacturer Information" role
in EV-CIS. Otherwise, users will only be able to view  the information.

Information to Update
Updates include (but are not limited to):
Industry sector(s);
Addresses;
Contacts and Industry/Compliance Programs;
Test labs; and
Notification email addresses (used for EV-CIS's broadcast notifications).

STEP 3: Review all applicable
regulations.
Regulations provide requirements for certification and compliance.

Regulations
Review the following:
40 CFR Part 85
Control of air pollution from mobile sources.

40 CFR Part 86

Control of emissions from new and in-use highway vehicles and engines.

https://www.epa.gov/ve-certification/certification-and-fuel-economy-light-duty-passenger-cars-and-trucks

2/6

7/3/25, 2:45 PM

Certification and Fuel Economy for Light-Duty Passenger Cars and Trucks | US EPA

40 CFR Part 600

Fuel economy and greenhouse gas exhaust emissions of motor vehicles.

Selected Guidance Letters
Review selected guidance letters:
Information about Family Naming Conventions

Fuel Economy Label Information for 2017 Model Year (pdf) (125 KB, July 18,
2016)
Preparing Light-Duty Vehicles and Trucks for Chassis Testing at EPA's National
Vehicle and Fuel Emissions Laboratory (NVFEL) (pdf) (172 KB, February 15,
2016)
To search all guidance letters, go to:
EPA's Transportation and Air Quality Document Index System (DIS)

STEP 4: Pay appropriate certification
fees, as applicable.
A fee payment may be required for each certificate issued by EPA.
For more details, go to: Fees Information

https://www.epa.gov/ve-certification/certification-and-fuel-economy-light-duty-passenger-cars-and-trucks

3/6

7/3/25, 2:45 PM

Certification and Fuel Economy for Light-Duty Passenger Cars and Trucks | US EPA

STEP 5: Prepare certification and/or
fuel economy application materials.
For each model year for an Engine Family, you must provide the applicable certification
dataset and supporting materials.

Support Documentation for Submissions
Materials Specific to Passenger Cars and Trucks
EV-CIS documentation for certification and fuel economy modules

EPA Generic Multicycle Calculator (xlsx)
(February 2020)

EPA 2024 Generic Electric Vehicle Label Calculator (xlsm)
(February 2023)

EPA 2023 Generic Electric Vehicle Label Calculator (xlsm)
(January 2022)

EPA Plug-In Hybrid Electric Vehicle Calculator (xlsm)

(808.56 KB, updated April 2025)

Materials for All EV-CIS Users
Software release notes for EV-CIS

https://www.epa.gov/ve-certification/certification-and-fuel-economy-light-duty-passenger-cars-and-trucks

4/6

7/3/25, 2:45 PM

Certification and Fuel Economy for Light-Duty Passenger Cars and Trucks | US EPA

EV-CIS documentation for request for certificate (RFC) module

Includes data requirements and business rules.

EV-CIS documentation for cross-industry services

Includes data requirements and business rules.

STEP 6: Submit the completed
certification and/or fuel economy
application materials in EV-CIS.
Login to EV-CIS through the CDX portal: Central Data Exchange (CDX)
Click the applicable industry role on the MyCDX homepage.
Submit the completed certification and/or fuel economy dataset(s) and upload any
required supporting materials.

STEP 7: Confirm that your
submission(s) from Step 6 were
accepted by EV-CIS.
Within a few minutes of all submissions, the submitter will receive a notification in their
CDX inbox indicating whether the submission was accepted or rejected.
To access your CDX inbox, click the "Inbox" link on the left navigation bar of the MyCDX
homepage.

https://www.epa.gov/ve-certification/certification-and-fuel-economy-light-duty-passenger-cars-and-trucks

5/6

7/3/25, 2:45 PM

Certification and Fuel Economy for Light-Duty Passenger Cars and Trucks | US EPA

STEP 8: Submit a request for
certificate (RFC).
A CROMERR signer must submit an RFC for each Test Group.
To do so, click the "CROMERR Signer" role on your MyCDX homepage.
Additional resources:
For more about submitting an RFC, see: Materials for RFC Module

STEP 9: Receive Certificate of
Conformity.
The CROMERR signer will receive the certificate in his or her CDX inbox.
To access your CDX inbox, click the "Inbox" link on the left navigation bar.

Last updated on April 22, 2025

https://www.epa.gov/ve-certification/certification-and-fuel-economy-light-duty-passenger-cars-and-trucks

6/6