HARP Utility Database Update

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April 2, 2025

HARP Update

CEIDARS Utility Database Update for the EIM


The California Air Resources Board (CARB) has released an updated California Emission Inventory Development and Reporting System (CEIDARS) Utility Database for the Hot Spots Analysis and Reporting Program (HARP) Emission Inventory Module (EIM). The information in the CEIDARS Utility Database is used to assist with data entry and quality assurance. The following tables have been updated:

  • SIC
  • SCC
  • POLLUTANT
  • FRACTION
  • EIC
  • CNTLDEV (Control Device)
  • CATEGORY

Before updating, please save and backup any active projects (create copies of .mdb project file and export data as a .tra file). To get the new CEIDARS Utility Database, select “Help > Check for Updates” feature in the main menu of the program. This feature will automatically download and update the CEIDARS Utility Database. The item name will be 'CEIDARSTables03025.mdb.' Restart the HARP EIM and then open your project file. When your project opens, you will then be prompted to use the latest CEIDARS Utility Database. Select "Yes" to begin using the new CEIDARS Utility Database.

If you have questions regarding the updates in the CEIDARS Utility Database, please email emission inventory staff at eibweb@arb.ca.gov.