Screening Threshold Quantity Law and Legal Definition

According to 6 CFR 27.105 [Title 6. Homeland Security; Chapter I. Department of Homeland Security, Office of the Secretary; Part 27. Chemical Facility Anti-Terrorism Standards; Subpart A. General] the term Screening Threshold Quantity or STQ shall mean “the quantity of a chemical of interest, upon which the facility's obligation to complete and submit the CSAT Top-Screen is based.”