In short, YES, a license is required for marine VHF.
Not so easy to get, either, as you pretty much MUST have a vessel (that's a ship, boat or dingy, NOT a truck car or house) that is either voluntarily equipped or your vessel may be required to have a marine VHF in some instances.
Generally, you cannot get a VHF marine license for ANY land-based house/business/fancy, etc. unless you have something directly to do with the Marine Trades, Safety or Industry such as Sea Tow (TM), AT&T VHF Radiotelephone services, Joe-Bob's Boat Repair, Cucaracha Marina, etc.
'Fuzz
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Buttfuzz in the Mobile</p>