One sign on or at the machine with fact that fee will (or may) be charged to non-customers (paragraph (c)(1)) AND provide a screen or paper notice that you will charge a fee of (state amount) if the cardholder proceeds. (paragraph (c)(2)).
By the way, the word "and" appears at the end of paragraph (1).
The first sign is to warn the cardholder that if you are totally fee averse, don't even try. The second notice is to tell the cardholder who wants to know how much what it will cost.
You don't need to include the fee amount on the posted sign, so you don't need to swap them out each time your fee changes. Just update the info on the screen under program or parameter control.
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John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8