System Documentation for Heavy-Duty Engines in the Engines and Vehicles Compliance Information System (EV-CIS), formerly Verify

Use the following files for the commercial trucks and buses module in EV-CIS.

• Data Requirements for Heavy-Duty Engines (xlsx) (729.02 KB, January 2024)
  Contain descriptions (glossary) of each element and how it is to be used.
• Business Rules for Heavy-Duty Engines (xlsx) (677.89 KB, January 2024)
  Define or constrain acceptance of information based on our regulatory implementation and allow for the validation of new submissions with existing system information.
• Standards Decision Table for Heavy-Duty Engines (xlsx) (654.25 KB, January 2022) Contains decisions tables for exhaust standards and Family Emission Limit (FEL) .
• Calculations Spreadsheet for Heavy-Duty Engines (xlsx) (October 2019)
• XML Schema for Heavy-Duty Engines (zip) (May 2021)
  Validates the formats of the data input into the system.

• XML Schema Change Log for Heavy-Duty Engines (pdf) (68.89 KB, May 2021)