CA.II.E.K2FAA-S-ACS-7B · Nov 2023Knowledge

Taxi instructions/clearances.

ACS element text (the applicant demonstrates understanding of)

Taxi instructions/clearances.

Bottom line

Approval must be obtained prior to moving an aircraft or vehicle onto the movement area during the hours an Airport Traffic Control Tower is in operation. A clearance must be obtained prior to taxiing on a runway, taking off, or landing during the hours an Airport Traffic Control Tower is in operation.

FAA references

  1. AIM 4-3-18 (Taxiing) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  2. PHAK ch. 14 (pp. 14-32–14-33) — FAA-H-8083-25C (2023)
  3. AIM 4-3-20 (Standard Taxi Routes) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  4. AIM 5-2-1 (Pre‐taxi Clearance Procedures) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  5. AIM 4-3-19 (Taxi During Low Visibility) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  6. Chart Users' Guide Runway Lights — effective 22 January 2026
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