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update released for the air quality system (AQS) exchange
U.S. EPA's Air Quality System (AQS) Program has updated the AQS Submission XML schema from Version 2.0 to 2.1. The new resources are now available on the Exchange Network website at http://www.exchangenetwork.net/exchanges/air/aqs.htm.

This is a minor update. The primary change associated with the update is the addition of the new Census Bureau geographic entities, Core Based Statistical Area (CBSA), and Consolidated Statistical Area (CSA). Additional minor changes include making Source Map Scale optional (since it is not defined for GPS methods) and making the Census Block Group optional (since it is not required by the Census Bureau). A complete list of changes may be found in the Change Control Spreadsheet on the web page listed above. In addition, the associated flow documentation (e.g. Flow Configuration Document, Data Exchange Template) has been updated to address deficiencies reported in the version 2.0 documentation.

U.S. EPA will continue to support the earlier version of the exchange for partners that are operating version 2.0. If you have any questions on the new schema or other components of the flow, please contact Robert Coats at Coats.Robert@epa.gov.