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AA.II.D.K7cFAA-S-ACS-11A · Nov 2023Knowledge

c. Entering or crossing runways (land operation)

ACS element text (the applicant demonstrates understanding of)

Airport/seaplane base procedures, including: c. Entering or crossing runways (land operation)

Bottom line

No person may, at any airport with an operating control tower, operate an aircraft on a runway or taxiway, or take off or land an aircraft, unless an appropriate clearance is received from ATC.

FAA references

  1. 14 CFR 91.129 (Operations in Class D airspace.) — eCFR current as of 2026-03-05
  2. RMH ch. 6 (p. 6-3) — FAA-H-8083-2A
  3. AC 120-57 Appendix B — AC No: 120-57C
  4. AC 120-57 ch. 5 Taxiway centerline lights — AC No: 120-57C
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