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IRIS Public Science Meeting (April 2019)

NOTICE: EPA is hosting a public meeting on April 24, 2019 to receive feedback on the Systematic Review Protocol for the Hexavalent Chromium IRIS Assessment. The preliminary agenda is now available.

Meeting Objective

At IRIS Public Science Meetings, the IRIS Program encourages the scientific community and the public to participate in discussions on IRIS draft assessment materials.

At this meeting, the IRIS Program is inviting public discussion on the following draft assessment material:

  • Systematic Review Protocol for the Hexavalent Chromium IRIS Assessment (Preliminary Assessment Materials)


  • The meeting will be held on April 24, 2019 from 1:00 - 3:00 pm Eastern Time by webinar.
  • Register to be a public commenter by April 10, 2019.
  • Register to attend (webinar only) by April 22, 2019 or until the 250 person limit is reached - whichever occurs first.
  • The deadline to submit public comments to the docket is April 29, 2019.

Meeting Agenda

On April 24, 2019, EPA will host a public webinar to provide an opportunity for the public to give input and participate in an open discussion regarding the Systematic Review Protocol for the Hexavalent Chromium IRIS Assessment. See the preliminary agenda below:

Preliminary meeting agenda for the  April 24, 2019 IRIS Public Science Meeting(1 pp, 139 K, About PDF) 

Meeting Materials

Chromium VI Assessment Managers: Catherine Gibbons & Alan Sasso


The IRIS Program will be holding this meeting only by webinar and not in-person. You will need to register to attend the webinar by visiting the link (in the registration link box). You may also register to give verbal comments at the meeting from this form.

Commenters are given up to 10 minutes to speak. Registration to attend and comment is open until April 10, and registration to attend is open until April 22, 2019 or until the 250 person limit is reached - whichever occurs first. Teleconference/webinar information will be provided a few days before the meeting/webinar is held.

To keep you informed regarding the IRIS Program updates, all attendees who register for this event will also be added to the IRIS Mailing List. If you decide that you do not want to receive these updates, you can unsubscribe from the mailing list at any time.

Note on registering: while you are not required to provide us with any personally identifying information (such as your email address, phone number, etc.), doing so will allow us to process your registration and provide you with the information regarding participation procedures. Failure to provide this information may hinder your ability to participate in this public event.

Computer Preparations for the Webinar

Once you are registered to participate remotely by webinar you will need:

  • A computer with an internet connection. Adobe Flash is required.
  • A speaker/headphones or telephone. Audio will be available through the webinar, and also through a teleconference line if you wish to listen by phone or want to make a comment.
  • The webinar URL and teleconference details will be e-mailed to registered participants of this meeting.

The webinar room will be opened 30 minutes prior to the workshop for testing and set up. The teleconference line will be opened 10 minutes before the start of the workshop.

Software Specifications: EPA uses Adobe Connect with integrated video, screen sharing, and sound capabilities. If this is your first online event using this software, then you should follow the steps below to set up your computer in advance.

  1. First run the test by visiting If you fail any portion of the test, please follow the instructions to resolve your problem. If you cannot resolve the issue, then contact your PC support specialists for assistance.
  2. Once you are at the login screen for the webinar, you can enter the meeting using the guest option. Please identify yourself by supplying your first and last name and organization and/or affiliation. For example, "Jane Doe - GSA." EPA employees should use their registered names to enter the meeting room.
  3. After completing step 2, just click the button "Enter Room" to join the meeting.

Questions: If you are having technical issues in the webinar, you can use the chat window to address the meeting host. If you have a question for the speaker you must use the "ask a question" box to notify the meeting facilitator that you have a question. Once an opportunity is available your question will be addressed.

For any additional questions, please email Dahnish Shams at

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