Hide Table of Contents

Impact Assessment Methodologies

You can choose either CML or TRACI as the impact assessment methodologies to display the environmental impact of your study.

When you start a new SolidWorks Sustainability study, the most recently used assessment methodology becomes the default. For example, if the last study you completed used the CML methodology, this is the default the next time you run Sustainability.

Expand the drop-down list at the bottom of the Environmental Impact section of the Sustainability task pane to select the method to use:


This methodology was developed by the Center for Environmental Sciences (CML or Centre for Milieukunde, Leiden) at the University of Leiden, The Netherlands.

CML is based on European regional conditions. For LCA studies outside of North America, the CML methodology is the most commonly-used set of environmental indicators used for Life Cycle Assessment (LCA).

CML is the assessment methodology for models save in versions of SolidWorks prior to SolidWorks 2013.


This methodology was developed by the United States Environmental Protection Agency.

TRACI is based on regional conditions of the United States and can be used to accurately model North American LCA studies.

Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

Subject:   Feedback on Help Topics
Page:   Impact Assessment Methodologies
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:


We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again

Web Help Content Version: SOLIDWORKS 2014 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.