Large nontransport category airplanes: Landing limitations: Alternate airports.

CFR · 2024-01-01 · US · Title 14

No person may select an airport as an alternate airport for a large nontransport category airplane unless that airplane (at the weight anticipated at the time of arrival), based on the assumptions in § 135.393(b), can be brought to a full stop landing within 70 percent of the effective length of the runway.

official document · source cfr-2024 · id 14:§ 135.395