Yes. A facility closure may be considered a material modification to a covered facility. In this case, the facility must complete and submit a revised Top-Screen to the Department of Homeland Security (DHS) within 60 days of the material modification (i.e., its closure), in accordance with 6 C.F.R. § 27.210(d), available at http://www.ecfr.gov/cgi-bin/retrieveECFR?gp=&SID=5490ca42ba3517c7c9aec9c47cefc750&r=PART&n=6y1.0.1.1.11. When completing...