'WET' designation on cable jacket itself?

Where does it state in National Electrical Code that the cable jacket itself must state its good for wet locations?
It doesn't. I just looked at a piece of UF cable and there is no wording regarding location.
 
The answer likely lies in 310.120 which addresses conductors and cables.
(310.120 in the '17, 310.8 in the '23_)(Thanks Rob)
 
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