Engines and Vehicles Compliance Information System (EV-CIS), Documentation for Certification and Fuel Economy Modules in Light-Duty Passenger Vehicles and Trucks

Use the following files for certification and fuel economy modules in EV-CIS.

• Data Requirements for Light-Duty Vehicles (xlsx) (1.27 MB, January 2025)
  Contain descriptions (glossary) of each element and how it is to be used.
• Business Rules for Light-Duty Vehicles (xlsx) (773.84 KB, October 2024)
  Define or constrain acceptance of information based on our regulatory implementation and allow for the validation of new submissions with existing system information.
• XML Schema for Light-Duty Vehicles (zip) (January 2025)
  XML Schemas validate the formats of the data input into the system.
• XML Schema Change Log for Light-Duty Vehicles (pdf) (227.21 KB, January 2025)
• Example of Tier 3 CSI Report for Release 15.0 (pdf) (79.61 KB, October 2014)
• Example of Tier 3 FFV CSI Report for Release 15.0 (pdf) (902.27 KB, February 2015)