Also, if you are going to replace paper charts with electronic charts, you must have TWO independent ECS systems. It also must be up to date.
If you go to Canada, they do not accept ECS charts. You must have ECDIS or corrected Canadian paper charts.
I take a laptop and tablet with two independent systems with up to date charts with me to every boat because so many tugboats have inadequate crap systems with pirated software and charts that are three years out of date.