All Notices to Mariners and other critical changes are fully applied just before yours are printed. The new charts show you the latest discoveries like channel changes and other hazards, so you sail safer. There are other improvements too. These rugged charts are water-resistant and have a tough coating that's easy to write on. Brighter colors are easy to read.
Waterways change like the tides.
So the next time you're ready to cast off, put safety first.