The Chemical Security Assessment Tool (CSAT) is the Department of Homeland Security's system for collecting and analyzing key data from chemical facilities to:

• Register for CSAT


• Identify facilities that present a high level of risk


• Support the preliminary and final tiering decisions for individual high-risk facilities


• Assess a facility’s security vulnerabilities


• Evaluate a facility’s security plan to address vulnerabilities and meet risk-based performance standards

The Chemical Security Assessment Tool comprises four secure, web-based tools:

• Facility Registration Questionnaire


• Consequence screening questionnaire (Top-Screen)


• Security Vulnerability Assessment (SVA) tool


• Site Security Plan (SSP) template

After registering for CSAT, facilities are provided access to the Top Screen, which enables the Department to determine if they are a high risk chemical facility covered by the Chemical Facility Anti-Terrorism Standards Interim Final Rule (CFATS). For facilities that are determined to be high risk, other tools, specifically the SVA and SPP, are made available to satisfy additional CFATS requirements.
Register to Access CSAT
To complete and submit a Top Screen, required by the Chemical Facility Anti-terrorism Standards 6 CFR 27, please register for access to the Chemical Security Assessment Tool (CSAT).

• CSAT User Registration User Guide (PDF, 45 pages - 903 KB)


• CSAT User Change Request Guide (PDF, 26 pages - 686 KB)

CSAT Top-Screen Survey
Any facility that manufactured, used, stored or distributed certain chemicals above a specified quantity must complete and submit a CSAT Top-Screen.
The proposed Appendix A Chemicals of Interest List is available. The Department may also notify facilities – either directly or through a Federal Register notice – that they need to complete and submit a CSAT Top-Screen.

• CSAT Top-Screen Questions (PDF, 79 pages - 1.1 MB) List of questions provided to assist chemical facility owners and operators in assembling the information needed to complete the secure web-based CSAT application


• CSAT Top Screen User Manual (PDF, 71pages - 1.5 MB)

Once a Top Screen survey has been completed and submitted, it cannot be recalled and edited.
Please enter Top Screen data carefully and proofread entries before submitting. Your submitter should keep a copy of the Top Screen for future reference.
If you need to resubmit your Top Screen, please contact the CSAT Help Desk at 866-323-2957 or csat@dhs.gov

Need Additional Help?


You have two sources of help if you have any questions

• You may access the CSAT Frequently Asked Questions website


• You may call the CSAT Helpline at 866-323-2957 from 7:00 a.m. – 7:00 p.m., Eastern Time, Monday-Friday

Labels: chemicals of interest, CSAT, dhs