Chemical Facility Anti-Terrorism Standards: Top-Screens for Dynamic Business Operations Fact Sheet


The Cybersecurity and Infrastructure Security Agency (CISA) has reviewed tens of thousands of Top-Screens submitted by chemical facilities under the Chemical Facility Anti-Terrorism Standards (CFATS) regulation. Based on these reviews, CISA has identified helpful tips to assist facilities with completing and submitting a Top-Screen.

This fact sheet provides information for facilities that are frequently changing the quantities of chemicals of interest (COI), are planning for potential operational changes in the future, or are ceasing operations.

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