If you back up a section, you will also find 31 CFR 210.4(a)(1)
(1) The agency or the RDFI that accepts the recipient's authorization shall verify the identity of the recipient and, in the case of a written authorization requiring the recipient's signature, the validity of the recipient's signature.
Generally the RDFI is not obtaining authorization to receive benefits, the recipient provides the account information directly to the federal agency that is paying the benefits. It is up to the agency to determine that it is sending the funds to the correct account. If you become aware that one of your customers is receiving benefits in someone else's name, then by all means start returning the items. There is no requirement here for you to verify all of your government payments.
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