EPCOR - Electronic Payments Core of Knowledge is a not-for-profit trade association providing payments education and support to over 2,300 member banks, credit unions, and affiliated organizations across several U.S. states[2][3]. They offer training, publications, and expert advice to help members maintain compliance, improve operations, and mitigate risk in electronic payments[2][3]. Their unique selling proposition is comprehensive, member-focused support in navigating complex payment systems regulations, fostering industry improvement through affiliations with organizations like NACHA[3].