14 CFR § 91.515 - Flight altitude rules.
(1) One thousand feet above the surface, or 1,000 feet from any mountain, hill, or other obstruction to flight, for day operations; and
(b) This section does not apply -
(1) During takeoff or landing;
(2) When a different altitude is authorized by a waiver to this section under subpart J of this part; or
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