TFM: Nacha is a membership association (previously known as the “NACHA - The Electronic Payments Association") which manages the development, administration, and governance of the Automated Clearing House network used by financial institutions nationwide.

Green Book: Nacha is a membership association (previously known as the "NACHA – The Electronic Payments Association") which manages the development, administration, and governance of the Automated Clearing House (ACH) network used by financial institutions nationwide.