I believe what you want is 12 USC 376.
12USC-CH3-Sec. 376. Rate Of Interest Paid To Directors, Etc.
No member bank shall pay to any director, officer, attorney, or employee a greater rate of interest on the deposits of such director, officer, attorney, or employee than that paid to other depositors on similar deposits with such member bank.
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Andy Zavoina
Opinions stated are not necessarily that of my employer.