The person directing and controlling the movement of a towing vessel is fixing position using only buoys in the channel. Under 33 CFR §164.78, this practice is:

Question

Accepted Answer

C. Not permitted; buoys alone cannot fix a position — 33 CFR §164.78(a)(3) explicitly prohibits fixing position using buoys alone, noting that buoys are placed in approximate positions and may not maintain exact charted positions due to currents, seas, ice, or collisions. Buoys may corroborate a fix obtained by other means or establish an estimated position when no other aids are available, but they cannot fix a position.

Answer

A. Acceptable provided the buoys are lit and charted

Answer

B. Acceptable only when visibility exceeds 1 nautical mile

Answer

D. Acceptable as a primary method when radar is inoperative

The person directing and controlling the movement of a towing vessel is fixing position using only buoys in the channel. Under 33 CFR §164.78, this practice is:

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