When is the only time you can fully rely on an Admiralty Chart?

You can fully rely on an Admiralty Chart when navigating in familiar waters where the chart is up-to-date and matches the current conditions. This includes scenariOS where proper hydrographic surveys have been conducted, and there are no changes due to natural or man-made alterations. Additionally, using the chart in conjunction with other navigational tools and techniques ensures greater accuracy and safety. Always keep in mind that charts may not reflect the most recent changes in the marine environment.