All airports must have at least one wind direction indicator in a location readily visible to aircraft, which provides a true indication of the wind on the landing area. If the airport is lighted for night operations, the wind indicator must be equipped with adequate lighting.

Source: SL 1975, ch 16, § 1; 13 SDR 129, 13 SDR 134, effective July 1, 1987 ; 52 SDR 10, effective August 4, 2025 .

General Authority: SDCL 50-5-1.2 .

Law Implemented: SDCL 50-5-1 , 50-5-3 .

Prior versions effective: 1987-07-01.