Tools | AIChE


CCPS provides process safety professionals with a variety of free tools that include worksheets, databases, process safety metrics, a glossary, safe work practices, and tools for risk analysis screening and chemical hazard engineering fundamentals.

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CCPS Tools

Chemical Reactivity Worksheet

The Chemical Reactivity Worksheet (CRW) is a free software program you can use to find out about the chemical reactivity of thousands of common hazardous chemicals, compatibility of absorbents, and suitability of materials of construction in chemical processes.

Chemical Reactivity Worksheet 

Golden Rules

CCPS Golden Rules are designed to arm process safety professionals with information to deal with process safety hazards. These rules / tenets are based on absolute statements to address the inherent hazards associated with process technologies including FCC operations, the chlorine chemistry, nitration chemistry, peroxides, combustible dust, and others.

Golden Rules


Layer of Protection analysis (LOPA) is a simplified quantitative tool for analyzing and assessing risk. LOPA was developed by user organizations during the 1990s as a streamlined risk assessment tool, using conservative rules and order of magnitude estimates of frequency probability and consequence severity. This Database is a benefit for employees of CCPS member comapnies. Full access requires login.


PERD: Process Equipment Reliability Database 

The PERD ERP tool allows a company to identify problems such as equipment failures leading to the greatest financial and safety consequences. PERD ERP is designed to allow efficient analysis by probing deeper into the reasons for failure, and allows the user to make decisions that can improve the performance. This can be finding and fixing outliers that are not performing well versus the mean or to help promote reliability growth.


Process Safety Incident Evaluation (PSIE) Tool 

(Currently being updated; expected 4Q 2022)

The Process Safety Incident Evaluation app will let users evaluate a chemical incident against the current process safety indicators.

The PSIE app will have three main components: the Process Safety Incident (PSI) Evaluation Questionnaire, the Severity Weighting Questionnaire, and the Chemical and Mixtures Database.

The PSIE app Questionnaire will walk a user, step-by-step, through the evaluation of an event leading to the determination of whether it meets Tier 1 or Tier 2 PSE Criteria.

The Severity Weighting Questionnaire will help determine the severity rating of a confirmed Tier 1 PSE through another questionnaire.

The chemical and mixtures database will provide a list of chemicals and mixtures. The app will also let the user add, remove, or edit custom chemicals or mixtures to this database after entering a number of physical property-related fields.

Last but not least, the app will enable users to save, e-mail, or print their final evaluation report afterward.

Please refer to additional information on Process Safety Event criteria in our CCPS Process Safety Guide for Leading and Lagging Indicators. This Guide was revised and updated in 2022.

Process Safety Incident Database

The Center for Chemical Process Safety (CCPS) developed the Process Safety Incident Database to collect, track and share important process safety incidents and experiences among project participants.


Process Safety Metrics

Companies continuously improving their process safety performance must select, implement, and monitor company-specific process safety metrics for leading and lagging indicators. In 2021, CCPS member companies reviewed and updated the CCPS process safety metrics guidance. View the updated metrics guidance and other important metrics information in one place.

Recommended Process Safety Metrics 

Process Safety Beacon

The Process Safety Beacon is a resource aimed at delivering process safety messages to plant operators and other manufacturing personnel. The monthly one-page newsletter covers the breadth of process safety topics.

Process Safety Beacon

Process Safety Moments

The purpose of these presentations is to use past incidents to raise the hazard awareness of the broader chemical industry, to bring more detail than the Process Safety Beacon alone can provide and to allow discussion of the potential hazards, controls and safeguards at your facility.

Process Safety Moments

Process Safety Glossary

A glossary of process safety terms.

Process Safety Glossary

Professional Services Directory

The Professional Services Directory features CCPS member companies who offer a wide range of benefits and services to your company; from consulting to cyber security, training to auditing, from incident investigation to PHA & HAZOP and much more. Companies listed in this directory are available to provide their specific services throughout the world.

Professional Services Directory

RBPS Resources Web Tool

This project aims to create a easily accessible web-based tool for each of the 20 Risk Based Process Safety elements. A central “hub” of free information of Process Safety information, tools, and resources. 

RBPS Web Tool 

Risk Analysis Screening Tool (RAST) and Chemical Hazard Engineering Fundamentals (CHEF) 

The RAST software and its associated CHEF documentation were developed through the collaborative efforts of volunteers from member companies of the Center for Chemical Process Safety (CCPS) and the European Process Safety Centre (EPSC). Special appreciation is extended to The Dow Chemical Company for donating RAST/CHEF for global use and for providing the resources to help modify the software and documentation such that companies can tailor the RAST software to meet their company-specific risk tolerance levels. It is sincerely hoped that companies using RAST and CHEF during their hazards evaluations and risks assessments will be able to improve their process safety performance.

Risk Analysis Screening Tool (RAST) 

Safe Work Practices (SWP)

Work place fatalities and injuries continue to occur with hot work incidents, nitrogen asphyxiations, confined space, line opening and other activities because of unsafe work practices. We need to make them more “human failure” resistant’.  This effort will likely save lives somewhere. This tool is designed to reach, and provide value to, a very broad audience including operations, maintenance and engineering personnel in the process industries (Chemical, petrochemical, electronics, natural gas and others). In addition to appealing to larger, more established member companies, this information has been tailored to also reach both large and small, domestic and international.

Safe Work Practices Tool 

Vision 20/20

Vision 20/20, developed by the Center for Chemical Process Safety (CCPS), looks into the not-too-distant future to demonstrate what perfect process safety will look like when it is championed by industry; driven by five tenets of culture, standards, competency, management systems and lessons learned; and enhanced by community passion and four global societal themes.

Vision 20/20

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