California Air Resources Board

Minimum System Requirements

The current version of HARP is a Microsoft Windows based program and can be installed on any Windows operating system that supports the Microsoft .Net Framework 4.7.2 or later. 

• 2GB of RAM
• 20 MB of free space for program files

Risk Assessment Standalone Tool (dated 22118 - April 28, 2022)

Related Files

• Version History
• End User License Agreement
• User Guide (revised March 17, 2015)
• Health Database: Download and manually install the latest health database (posted: October 6, 2023)
  • Health database version history
  • Health Table Excel Version:  Copy of the latest HARP health table (posted: October 6, 2023)
• Descriptions of HARP2 HRA Input/Output
• Sample project for the RAST
• Consolidated Table of OEHHA / ARB Approved Risk Assessment Health Values
• OEHHA Air Toxics Hot Spots Program Guidance Manual for the Preparation of Health Risk Assessments 2015
• Risk Management Guidance for Stationary Sources of Air Toxics