Visa Inc.

• Visa Merchant Rules
• Visa Operating Regulations
• Visa Interchange Fees
• Visa Data Security Information
• Visa Brand Usage Rules
  

MasterCard Worldwide

• MasterCard Worldwide Rules 
• MasterCard Worldwide interchange fees
  
• MasterCard Worldwide Data Security Rules
• Mastercard Worldwide Brand Usage Rules
  

Discover Network

• DIscover rules and interchange fees are available only to acquirers and merchants who have business relationships with Discover.
• Discover Data Security Information

American Express

• American Express Rules for Acceptance
• Amex Data Security Information
  

Automated Clearing House (ACH)

• NACHA Rules
• ACH Network Operations Bulletins
• The Green Book
  

PCI Security Standards Council Information

• PCI SSC Website
• OCI DSS Quick Reference Guide (pdf)
  
• PCI Data Security Standard
• PCI Self Assessment Questionnaire
• PCIDSS Pin Entry Devices (Documents)
• PCI DSS Payment Application References
• PCI DSS Security Assessors and Scanning Vendors

U.S. Government

• FFIEC Retail Payments Examination Guide
• Regulation E
• FTC Guidance on GLBA Data Security Law and Regulations
• Federal Reserve Payment Card Center
• Federal Reserve
• Treasury Department
• Office of the Comptroller of the Currency
• Federal Trade Commission
• Federal Register
• Regulations.gov
• Legislative Information
  
  

White Papers

• Risk Management by ETA Risk & Fraud Committee (pdf)
  
• Data Security by ETA Risk & Fraud Commitee (pdf)
  

Education

• Compliance Day
• Webinars
• ETA University