ACH Rules
ACH Rules means the 2021 Operating Rules & Guidelines, including Supplement #12021, (both incorporated by reference, see 210.3(b)) published by Nacha, a national association of regional member clearing house associations, ACH Operators, and participating financial institutions located in the United States.
Source
31 CFR § 210.2
Scoping language
For purposes of this part, the following definitions apply. Any term that is not defined in this part shall have the meaning set forth in the ACH Rules.