Answer:
Absolutely not! Just try making a large cash deposit to my account at __________ Bank!
Seriously, some banks have adopted a policy of prohibiting certain cash (and, in some cases, other) deposits by individuals who aren't signers on or owners of the account in question. Those banks have a variety of reasons for the policies including concerns about micro-amount money laundering and deposit fraud.
However, none of the policies to my knowledge are prompted by new federal or state laws or regulations.