GreenScreen Practitioner Program

  • GreenScreen Practitioner Program

Lead the way in sustainable chemicals management with our most advanced training in the GreenScreen ® method.

Enroll in the GreenScreen Practitioner course and become an Authorized GreenScreen Practitioner™. Our next cohort begins May 6, 2015. Applications are due April 15; space is limited.  Learn more at our webinar April 8, 2015.

Apply now.

What does the GreenScreen Practitioner course include?

  • Two course components:
    • Advanced Topics course*, including:
      • Twelve hours of live, interactive, participatory web-based instruction with leading toxicologists
      • Applied assignments that each participant presents and discusses with the teaching team and class
      • Ample opportunity for questions and answers
    • Practicum:
      • Two comprehensive GreenScreen assessments on chemicals of your choice must be completed
        • The first assessment is completed in sections, concurrent with class topics
        • The second assessment is completed independently
      • Both assessments are carefully reviewed, with detailed feedback provided by our expert toxicologists and trainers
  • Experience evaluating and using a wide variety of data sources to develop robust hazard assessments
  • Expert one-on-one coaching
  • Small workshop format
  • Varied perspectives from a teaching team of some of the most experienced GreenScreen practitioners in the world

* The Advanced Topics course may be taken without the Practicum, but participants choosing this option are not eligible to become Authorized GreenScreen Practitioners

Benefits of becoming an Authorized GreenScreen Practitioner:

  • Increased competitive advantage with professional credentialing
  • Experience developing robust hazard assessments used in alternatives assessments, risk assessments, and Safety Data Sheets
  • License to author assessments for his/her registered organization, and
  • License to submit authorized assessments for third party review resulting in certified assessments. 
  • Recognition on the CPA website

Benefits for Organizations with Authorized GreenScreen Practitioners

  • Reduce costs: Increase efficiencies by developing staff capacity to generate valuable authorized chemical hazard assessments
  • Increase sales: Meet customer demands for chemical hazard assessments in support of: 
    • Materials procurement requirements
    • Environmentally preferable product development
    • Compliance with alternatives assessment regulations
    • Compliance with sustainability standards and ecolabel requirements
  • Reduce risk:
    • Better communicate and meet internal safer chemistry product development targets
    • Gain access to CPA third-party review of authorized assessments through the GreenScreen Certification Process

“Having completed this class, I realize just how well conceived and rigorous the GreenScreen actually is.  This course has opened my eyes to the nuances and resources associated with assessing chemicals.  As a result of taking this class I am an even more fervent advocate for using this tool as a powerful aid in identifying safer substitutes that we can reasonably assume will limit future need for replacement because of hazard.

-Mark Snyder, Minnesota Pollution Control Agency

“The class helped me develop a more consistent approach to GreenScreen assessments. Learning about new sources of data and how to interpret data from different sources removed much of the guesswork.”

-Leah Boyd

“Having done GreenScreen assessments internally for some time, I was surprised by how much I learned from the class. The instructors reviewed the work I submitted very carefully and pointed me to new data sources and new ways of looking at data. This has made my assessments stronger.”

--Cory Robertson


Applicants to the GreenScreen Practitioner Program must qualify and be accepted into the program. Applicants may or may not have formal training in toxicology, but should have experience and familiarity with evaluating chemical hazards. Participants who successfully complete the course are eligible to become Authorized GreenScreen Practitioners.

There are two parts to the GreenScreen Practitioner Program: the Advanced Topics Course, via live web-based classwork, and the Practicum.  Both are required for licensing.

  • Total time commitment (class, practicum, and homework) = ~120 hours*
  • $5500 USD for both the Advanced Topics and Practicum.
  • $2500 for Advanced Topics Course only

*The bulk of the time is spent performing two full GreenScreen assessments.  The time to complete each assessment is highly dependent on participants' prior experience and expertise.

  1. Download the program description for prequisites and details 
  2. Download the application (document or fillable PDF form)
  3. Email the completed application to

2015 class dates:

  • May 6, 2015 - Orientation
  • May 13, 2015 - Class #1
  • June 17, 2015 - Class #2
  • July 22, 2015 - Class #3
  • August 26, 2015 - Class #4
  • September 30, 2015 - Q&A #1
  • October 21, 2015 - Q&A #2
  • November 18, 2015 - Q&A #3
  • December 16, 2015 - Closure

Authorized GreenScreen Practitioners are listed here.