{"data":{"id":"us/6-cfr-27.220","jurisdiction":"us","citation":"6 CFR 27.220","heading":"Tiering.","body":"(a) Preliminary determination of risk-based tiering. Based on the information the Department receives in accordance with §§ 27.200 and 27.205 (including information submitted through the Top-Screen process) and following its initial determination in § 27.205(a) that a facility presents a high level of security risk, the Department shall notify a facility of the Department's preliminary determination of the facility's placement in a risk-based tier.\n(b) Confirmation or alteration of risk-based tiering. Following review of a covered facility's Security Vulnerability Assessment, the Executive Assistant Director shall notify the covered facility of its final placement within a risk-based tier, or for covered facilities previously notified of a preliminary tiering, confirm or alter such tiering.\n(c) The Department shall place covered facilities in one of four risk-based tiers, ranging from highest risk facilities in Tier 1 to lowest risk facilities in Tier 4.\n(d) The Executive Assistant Director may provide the facility with guidance regarding the risk-based performance standards and any other necessary guidance materials applicable to its assigned tier.","path":["Title 6—Domestic Security","CHAPTER I—DEPARTMENT OF HOMELAND SECURITY, OFFICE OF THE SECRETARY","PART 27—CHEMICAL FACILITY ANTI-TERRORISM STANDARDS","Subpart B—Chemical Facility Security Program"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-6.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:23:54Z","sha256":"bfdb00cdedf569685d4c30812359a9c49328cf7e0653498222881e639f6f4fa1","source_id":"us-cfr","stale":true,"prev":"us/6-cfr-27.215","next":"us/6-cfr-27.225"},"notice":"GroundRules: Original legal text. Not legal advice."}