The FCC requires you to have a Ham license, better than Technician class, for using the Ham frequencies, but doesn't require a Ship's Station License for the Ham radio.
The SSB or Ham radio equipment must be type accepted.
Good idea about developing a FAQ on this topic to ensure accurate and factual info for such a frequently asked question.
E.G. - "Ham equipment must be type-accepted" is true ONLY if it is used on marine frequencies. Similarly, the statement about "requires you to have a ham license better than Technician class" is true ONLY for frequencies below 30MHz.