§ 437.3. Definitions.
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/us/cfr/t14/s§ 437.3·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Envelope expansion means any portion of a flight where planned operations will subject a reusable suborbital vehicle to the effects of altitude, velocity, acceleration, or burn duration that exceed a level or duration successfully verified during an earlier flight. Exclusion area means an area, within an operating area, that a reusable suborbital vehicle's instantaneous impact point may not traverse. Operating area means a three-dimensional region where permitted flights may take place.
Permitted vehicle means a reusable suborbital rocket or a reusable launch vehicle that will be launched into a suborbital trajectory or reentered that is operated by a launch or reentry operator under an experimental permit. Reentry impact point means the location of a reusable suborbital vehicle's instantaneous impact point during its unpowered exoatmospheric suborbital flight. [Doc. No. FAA-2023-1656, Amdt. No. 437- 4, 89 FR 76726, Sept. 19, 2024]