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AI.II.C.K2FAA-S-ACS-25 · Nov 2023Knowledge

Taxi instructions/clearances.

ACS element text (the applicant demonstrates understanding of)

Taxi instructions/clearances.

Bottom line

A taxi clearance to the assigned takeoff runway does not authorize the aircraft to enter or cross that assigned departure runway at any point.

Key numbers

Key numbers for Taxi instructions/clearances.
NumberWhat it means
all runway hold short instructionsRead back
up to, but not crossing, the holding markingHold short
not used for taxi authorizationNo 'cleared'

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. PHAK ch. 14 (p. 14-31) — FAA-H-8083-25C (2023)
  5. AIM 4-3-21 (Exiting the Runway After Landing) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  6. AFH ch. 2 (p. 2-19) — FAA-H-8083-3C
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