14 CFR §450.107

1. (a)General. To meet the safety criteria of § 450.101(a), (b), or (c) for the flight, or any phase of flight, of a launch or reentry vehicle, an operator must use one or more of the hazard control strategies identified in § 450.108 through § 450.111.
2. (b)Hazard control strategy determination. For each phase of flight during a launch or reentry, an operator must use a functional hazard analysis to determine a hazard control strategy or strategies that account for—
   1. (1)All functional failures associated with reasonably foreseeable hazardous events that have the capability to create a hazard to the public;
   2. (2)Safety-critical systems; and
   3. (3)A timeline of all safety-critical events.
3. (c)Flight hazard analysis. An operator must conduct a flight hazard analysis in accordance with § 450.109 of this part for the flight, or phase of flight, of a launch or reentry vehicle if the public safety hazards cannot be mitigated adequately to meet the public risk criteria of § 450.101(a), (b), and (c) using physical containment, wind weighting, or flight abort.
4. (d)Application requirements. An applicant must submit in its application—
   1. (1)The results of the hazard control strategy determination, including—
      1. (i)All functional failures identified under paragraph (b)(1) of this section;
      2. (ii)The identification of all safety-critical systems; and
      3. (iii)A timeline of all safety-critical events.
   2. (2)A description of its hazard control strategy or strategies for each phase of flight.