We recommend that you get the best license you qualify for! There are a couple of options depending on your citizenship status and boating experience. The two main captain's licenses issued by the USCG are the Operator (6 pack) and the Master. There is no requirement to start with a 6 pack � you can go straight to Master! There are several basic differences, the Operator (6 pack) license is for uninspected vessels up to 100 gross tons, up to 100 miles offshore, and the Master is for inspected (vessels carrying 7 or more passengers) or uninspected vessels up to 100 gross tons, up to 200 miles offshore or on inland waters. Your boating experience may limit the tonnage to 25, 50 or 100 gross tons. Inland licenses are also available if you are operating primarily on inland waters. If you do not have enough sea time to get your Master Near Coastal (offshore), you should consider the Master Inland, Mate Near Coastal, and Operator (6pk) Combo. Another option worth considering is the Royal Yachting Association (RYA) Yachtmaster Program, which is valid on foreign flagged yachts up to 200gt. more