Reducing the Threat of Improvised Explosive Device Attacks by Restricting Access to Chemical Explosive Precursors


Welcome to the Committee on Reducing the Threat of Improvised Explosive Device Attacks by Restricting Access to Chemical Explosive Precursors study website.

To assist the Department of Homeland security (DHS) in its efforts to safeguard the Nation’s people, infrastructure, and economy from terrorist use of improvised explosive devices (IEDs), the National Academies of Sciences, Engineering, and Medicine will identify priority precursor chemicals used in the manufacture of IEDs, suggest controls that could be considered as part of a voluntary or regulatory scheme, and examine tradeoffs among those strategies.

The Study Committee is pleased to announce the release of the report, and is available for free download on our website at

The committee will host a public stakeholder meeting on November 29th from 2:00 PM EST to 3:15 PM EST in Washington, DC. Due to limitations, seating is offered on a first come first serve basis. For your convenience, the meeting will also be available via webcast for those who are unable to attend in person. To register, visit our event page   Download the agenda Here. We will have 30 minute Q&A session after the briefing. All questions must be submitted in writing at the meeting and will be read aloud to the committee for response. If you have any questions regarding the release of our report or the upcoming stakeholder meeting, please contact Jarrett Nguyen at


To join via the web, please follow the instructions below:

  • Please navigate to:
  • Download and run ZOOM
  • Enter Name
  • Click Join
  • Once the ZOOM program begins, you will be asked how you would like to connect with audio. Please choose to have the program call you directly– this will link your audio line to your name on the screen sharing page, which will make it much easier for me to keep track of your audio levels.


If you have questions to the committee, please submit them to our study email and they will be read aloud.

Send email to: