The National Automated Clearing House Association (NACHA) is a nonprofit organization that manages the development, administration, and governance of the Automated Clearing House (ACH) network in the United States. This network facilitates electronic payments and money transfers between banks and financial institutions, making transactions faster and more efficient. NACHA establishes the rules and standards for ACH transactions, ensuring security and reliability. It also promotes the use of electronic payments, helping businesses and consumers adopt modern payment methods. By overseeing the ACH network, NACHA plays a crucial role in the U.S. payment system.