ARB Emission Inventory and the Federal Government

This page last reviewed October 17, 2008

What is the CERR?

The Consolidated Emission Reporting Rule (CERR) is the regulation established by the US Environmental Protection Agency that specifies what emission inventory data is to be submitted by states, local agencies, and tribes.  The data submitted under the CERR goes into the National Emission Inventory. Details on the CERR can be found at the following link:

What is the National Emission Inventory?

The National Emission Inventory is a national database of air emissions information prepared by the US EPA, with input from numerous State and local air agencies, from tribes, and from industry. More information on this inventory can be found at the following link:

In 2001, ARB submitted 1999 criteria and toxic data to the National Emission Inventory. This data is incorporated into Version 3 of the 1999 NEI. The US EPA made a number of changes; among these changes, it specifically added landfill point source data. The emissions from these sources were reported by the ARB as area-wide sources. The following link is for a Microsoft Excel spreadsheet that lists these facilities.

What is the Federal Registry System?

The Facility Registry System (FRS) is a US EPA database that identifies facilities, sites or places subject to environmental regulations or of environmental interest. Facility data is consolidated from many different US EPA sources (water, air, and solid waste programs), including the National Emission Inventory. More information on the Federal Registry System can be found at the following link:

To date, the ARB has identified the FRS ID of approximately 15,601 out of 18,114 CEIDARS facilities. ARB maintains this ID internally in the CEIDARS database; districts and facilities do not need to enter or submit this data. The following link is for ZIP'ped Microsoft Access database that lists all facilities identified to date.

Maintaining Inventories