I would also recommend, as addendums to the required signage mentioned in the article,
1) the Equal Employment Opportunity poster required under 42 USC 2000e-10(a) since nobody else will be checking for it,
2) The early withdrawal penalty notice if you have a rate board under 217.6(e), and
3) An FCRA notice or error under 623(a)(1). If you notify customers where to direct their notice of error (of your report) that is where they must go. Otherwise, the customer could mention an error to a teller and you would be officially notified. The clock starts ticking at that time and you need to resolve the report and ensure erroneous information is not re-reported (read this as a liability). At least this was my reading of the amendments back in 96-97.
FYI, if you're interested, I hope to have my signage audit sheet posted on my personal web site later today or tomorrow. It is a Word file. It identifies 10 signage items (the 6 in the article, the 3 I mentioned and a Texas requirement.) Certainly you can edit it as you like for your bank and requirements.
It has a checklist and citations. It is designed so that others can read it, understand the requirements and assist in the branch signage audit process.
Opinions stated are not necessarily that of my employer.