14 C.F.R. § 135.377 Large transport category airplanes: Reciprocating engine powered: Landing limitations: Alternate airports.
Title 14 - Aeronautics and Space
No person may list an airport as an alternate airport in a flight plan unless the airplane (at the weight anticipated at the time of arrival at the airport), based on the assumptions in §135.375(a) (1) and (2), can be brought to a full stop landing within 70 percent of the effective length of the runway.
Title 14: Aeronautics and Space
PART 135—OPERATING REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT
Subpart I—Airplane Performance Operating Limitations
§ 135.377 Large transport category airplanes: Reciprocating engine powered: Landing limitations: Alternate airports.
