Top-Screen Process

The first step for a facility to take in determining whether it is covered under CFATS is to review the exemptions. Unless a fecility is exempt, it must conduct a review to determine whether it possesses any chemicals of interest at or above the listed screening threshold quantities. The DHS has listed the security issue(s) associated with each chemical of interest each chemical presents at least one security issue, and some 

The CSAT Top-Screen follows a logical, two-step data collection process (DHS, 2007b)  

Step 1 involves collecting basic facility identification information. 

Step 2 involves collecting information about the chenucals that a facility possesses, manufactures, processes, uses, stores, and/or distributes. 

The Top-Screen also provides additional questions for each of the facility types  

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