A Notice to Mariners correction states that a buoy has been repositioned by 50 meters. However, your latest ENC update does not reflect this change. Since the ENC system automatically applies official updates, there is no need to manually verify the buoy’s new position.

• TRUE

• FALSE

While performing a chart correction, you find that an update from a Notice to Mariners conflicts with a previous correction. Since the older correction was issued first, it remains valid.

• TRUE

• FALSE

Notices to Mariners are issued weekly, meaning any navigational hazards discovered between publications do not need to be considered until officially documented.

• TRUE

• FALSE

A fellow officer applies all Notices to Mariners to a chart but skips minor updates related to land-based objects. Since these objects do not affect ship navigation, they can be ignored.

• TRUE

• FALSE

If an error is found in a Notice to Mariners, mariners should apply the correction as stated, then wait for a future notice to amend the mistake.

• TRUE

• FALSE

A Notice to Mariners reports an unlit lighthouse on your route, but upon approach, you see the light functioning. Since the notice may be outdated, you can disregard the correction.

• TRUE

• FALSE

A newly issued Notice to Mariners reports shoaling near your planned anchorage. However, your depth sounder shows depths consistent with your uncorrected chart. Since actual readings confirm the original depth, the notice is likely incorrect.

• TRUE

• FALSE

Your voyage plan includes a restricted area listed in the Notices to Mariners. Since your vessel has successfully navigated through the area before without issue, the restriction can be reconsidered.

• TRUE

• FALSE

An old chart is updated using multiple Notices to Mariners. However, since so many corrections have been applied, it is no longer necessary to replace the chart with a new edition.

• TRUE

• FALSE

A new wreck is reported in a Notice to Mariners, but the charted depth at the location still indicates safe passage for your draft. Since the charted depth hasn’t changed, you assume the wreck is submerged deeper than your ship’s draft.

• TRUE

• FALSE