SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/pilot-rwsl-not-a-clearance

Do extinguished runway status lights give a pilot clearance to enter or depart?

No, an ATC clearance is still required.

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  1. Yes, at any towered airport
  2. Only when visibility is good
  3. No, ATC clearance is still required ✔

Why: Runway Status Lights warn of conflicts but never issue a clearance. Even after the red lights go out, do not proceed without the appropriate ATC clearance.

Huh, didn't know that: RWSL is a fully automated system that switches its lights from surveillance data.

The dad joke
The runway light went out, but it did not give anyone the green light.
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References

Answer: No, ATC clearance is still required. Runway Status Lights warn of conflicts but never issue a clearance. Even after the red lights go out, do not proceed without the appropriate ATC clearance.

  1. FAA AIM 2-1-6, Runway Status Light System www.faa.gov/air_traffic/publications/aim_html/chap2_section_1.html
    Do not proceed when lights have extinguished without an ATC clearance.
    Checked 2026-10-09.

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