National Automated Clearing House Association (NACHA) is a non-profit membership association. NACHA is responsible for overseeing the Automated Clearing House (ACH) system, which operates the largest electronic payment network in the world. Most of NACHA's 10,000+ members are depositary institutions and regional payment associations. NACHA provides the legal foundation for electronic payment systems to operate effectively through its rule-making and supervisory functions.  NACHA also works to update technologies and create new payment systems.

Prelude’s products PayPilot and PointPay follow the NACHA standards for creating electronic payment and debit files, as well has handling the return files.