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AI.II.L.K1bFAA-S-ACS-25 · Nov 2023Knowledge

b. Protected and unprotected areas

ACS element text (the applicant demonstrates understanding of)

Characteristics of a water surface as affected by features, such as: b. Protected and unprotected areas

Bottom line

Except for the far north, the available bodies of water are no longer the exclusive domain of the airman.

FAA references

  1. AIM 7-6-9 (Seaplane Safety) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  2. RMH ch. 3 (pp. 3-7–3-8) — FAA-H-8083-2A
  3. SEA ch. 1 (p. 1-2) — FAA-H-8083-23
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