Section 420.25 - Launch site location review-risk analysis(a) If a flight corridor or impact dispersion area defined by § 420.23 contains a populated area, the applicant shall estimate the casualty expectation associated with the flight corridor or impact dispersion area. An applicant shall use the methodology provided in appendix C to this part for guided orbital or suborbital expendable launch vehicles and appendix D for unguided suborbital launch vehicles.(b) For licensed launches, the FAA will not approve the location of the proposed launch point if the estimated expected casualty exceeds 1 * 10-4.Doc. No. FAA-1999-5833, 65 FR 62861 , Oct. 19, 2000, as amended by Amdt. 420-3, 72 FR 17019 , Apr. 6, 2007; Docket No. FAA-2014-0418, Amdt. No. 420-7, 81 FR 47027 , July 20, 2016; Doc. No. FAA-2016-6761, Amdt. No. 420-8, 83 FR 28535 , June 20, 2018 81 FR 47027 , 8/19/2016; 83 FR 28535 , 8/20/2018