NACHA
Table of contents
About
NACHA as it is described in it's homepage: NACHA’s multifaceted role in the payments industry involves both administrating the ACH Network and acting as an industry trade organization.
Homepage: https://www.nacha.org/
About: https://www.nacha.org/about
NACHA in XMLdation service
XMLdation offers validation for NACHA XML-ACH