Hotspots Analysis Reporting Program Software Downloads
page last reviewed April 4, 2013
HARP Software Downloads
is avaliable free
for download. Please note the HARP program has not been tested on Windows Vista. Please report any issues to HARP or contact the Stationary Source Division, Emission Assessment Branch at
(ZIP - 1.7 MB)
This file was recompiled on 02/03/09
HARP On-Ramp was developed as an interim tool to allow people to use
AERMOD with HARP. If you have air dispersion data from
program (e.g., AERMOD View, BEEST, or BREEZE), you can import this
data directly into the HARP Risk Module using this program.
HARP On-Ramp accepts files from AERMOD, ISC, and CALPUFF.
In order to use the HARP On-Ramp, you must have
Microsoft .NET Framework 1.1 or
later installed on you computer.
Please note that a new health database is available for the HARP
On-Ramp. View information on how to download and install the
that user instructions are embedded in the HARP On-Ramp program.
Please note the HARP On-Ramp program has not been tested on
Vista. Please report any issues to HARP.
Emission Inventory Module and Draft User Manual
(ZIP - 26 MB)
ARB is currently updating the HARP software. This latest version is different from the previous versions of HARP.
The new version of HARP has been separated into three individual programs (Emission Inventory Module, Air Dispersion Module, and the Risk Assessment Module)
which will allow users to access any of the modules independently from each other. As in the previous version, the information can still be shared between each program.
For consistency, the three programs are still referred to as the Emission Inventory Module, Air Dispersion Module, and the Risk Assessment Module.
The new version of HARP will also include AERMOD and the updates to the OEHHA “Hot Spots” Risk Assessment Guidelines. ARB anticipates on having the Air Dispersion and
Risk Assessment Modules available within six months to a year after the final part of the OEHHA “Hot Spots” Risk Assessment Guidelines is adopted.
At this time, the HARP 2 Emission Inventory Module is being released for a 30-day public review/testing period.
During this testing period, please submit any comments or issues discovered to firstname.lastname@example.org.
The deadline to submit comments is May 6, 2013. If you would like to test the new HARP 2 Emission Inventory Module, you may download the installation package and draft user manual using the link on the left.
Please email questions to