14 C.F.R. § 125.49 – Airport requirements.

(a) No certificate holder may use any airport unless it is adequate for the proposed operation, considering such items as size, surface, obstructions, and lighting.
(b) No pilot of an airplane carrying passengers at night may take off from, or land on, an airport unless—
1. (1) That pilot has determined the wind direction from an illuminated wind direction indicator or local ground communications, or, in the case of takeoff, that pilot's personal observations; and
2. (2) The limits of the area to be used for landing or takeoff are clearly shown by boundary or runway marker lights.
(c) For the purposes of paragraph (b) of this section, if the area to be used for takeoff or landing is marked by flare pots or lanterns, their use must be approved by the Administrator.