>>Which is correct ???
>>
>>"Print Cashier's Initials on Validation" with the '
>>
>>or
>>
>>"Print Cashiers Initials on Validation" without the '
>>
>>??
>>
>>I think they removed part of my brain along with the prostate.... wait.... I didn't have a brain to begin with......
>
>In all likelihood the first way is what you want. As Naomi says, it depends on whether it's one cashier or more than one. Singular = Cashier's. Plural = Cashiers'. (Note that the second choice you state is definitely incorrect. The apostrophe needs to be there somewhere, since it is a possessive).

IIRC Cashier's would be treated as an abbreviation - Cashier is.

Cashiers' is possessive.