Skip to Content


2021 International Symposium on Alternatives Assessment

Registration is now closed. Thank you to everyone that participated!

The Association for the Advancement of Alternatives Assessment (A4) hosted its International Symposium on Alternatives Assessment virtually on October 25-29, 2021. This year’s Symposium theme: “Accelerating Safer and Sustainable Alternatives”, highlighted the increased attention on the innovation, identification, and adoption of safer and sustainable alternatives to replace toxic chemicals of concern.

Program Recordings and Resources

A4 Short Course – Tour de Force of Tools from the US Environmental Protection Agency to Support Assessments of Alternatives

  • Short Course Recording: The recording to this training is now available on the A4 YouTube Channel.
  • Short Course Resources: Resources mentioned during the Short Course are available for download.

A4 Symposium Session Recordings: Available January 2022

Session 1 (Keynote) – How Do We Get to Safer and Sustainable: Insight from Risk Assessment, Safer Design, and Green Chemistry Leadership

Session 2 – Safe and Sustainable Alternatives

Session 3 – Alternatives Assessment and Informed Substitution in Policy Part I: Lessons Learned and Insights for Future Policy Provisions

Session 4 – Alternatives Assessment and Informed Substitution in Policy Part II: Lessons Learned for More Effective Implementation

Session 5 – Safer and More Sustainable Alternatives: Tools and Strategies being Used by the Business Community

Session 6 – Future Needs of Alternatives Assessments and the A4

Session 7 – A4 Poster Session and Symposium Closing Remarks

View the full agenda and speaker information.

If you have any questions regarding the event, please email

Thank You Sponsors

Learn more about our sponsors.








WA Dept of Ecology


Oregon DEQ

seventh generation  




Bolt Threads    


Sponsorship Opportunities

We are currently looking for sponsors to support the next A4 International Symposium on Alternatives Assessment that is taking place in 2022. Please contact us today about sponsoring!

Stay Updated

Join our mailing list to receive the latest updates on A4 news and events.