When should the information in IATONIS be verified?

Verification of information in IATONIS, which is the U.S. Coast Guard's information system for aids to navigation, should occur during each visit to an aid. This practice ensures that the information remains current and accurate, reflecting any recent updates or modifications to the aids being checked. Regular visits allow personnel to confirm that the aids are functioning as intended and that their status correctly corresponds to what is documented in IATONIS.

This approach is critical as it directly impacts navigational safety. By verifying data at each visit, officers can identify discrepancies, maintenance needs, or other issues that may arise, ensuring that navigational aids remain effective for mariners. While checking information before each use, doing so monthly, or only when changes occur is important, those actions do not encompass the routine and proactive nature of inspections conducted during each visit to an aid.