If these are consumer-purpose transfers from a consumer account, emanating from a U.S. account and received by a person or business or credited to an account outside of the U.S., they are Remittance Transfer subject to Subpart B of Regulation E.
If the consumer makes individual requests for these transfers, rather than a request for a recurring remittance transfer, you cannot avoid complying with the § 1005.31 disclosure requirements for each individual transfer (prepayment disclosure, receipt, or a combination disclosure when permitted by § 1005.31(b)(3).
If the consumer requests a series of preauthorized remittance transfers, the disclosure requirements are modified by § 1005.36. Specifically, subsection 1005.36(d) has specific requirements.
And no, the consumer cannot waive the disclosure requirements.