BS ISO/IEC 4909:2006

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Physical characteristics of the card
5 Location and dimensions of embossed data
6 Physical and performance characteristics of the magnetic
  material
  6.1 Physical characteristics
  6.2 Performance characteristics
7 Encoding specifications
8 Data content of track 3
  8.1 Field 1: start sentinel
  8.2 Field 2: format code
  8.3 Field 3: primary account number (PAN)
  8.4 Field 4: field separator (FS)
  8.5 Field 5: country code
  8.6 Field 6: currency
  8.7 Field 7: currency exponent
  8.8 Field 8: amount authorized per cycle period
  8.9 Field 9: amount remaining this cycle
  8.10 Field 10: cycle begin
  8.11 Field 11: cycle length
  8.12 Field 12: retry count
  8.13 Field 13: personal identification number control
       parameters (PINPARM)
  8.14 Field 14: interchange control
  8.15 Field 15: type of account (TA) and service
       restriction (SR) - PAN
  8.16 Field 16: type of account and service
       restrictions - SAN-1
  8.17 Field 17: type of account and service
       restrictions - SAN-2
  8.18 Field 18: expiry date
  8.19 Field 19: card sequence number
  8.20 Field 20: card security number
  8.21 Field 21: first subsidiary account number (SAN-1)
  8.22 Field 22: field separator
  8.23 Field 23: second subsidiary account number (SAN-2)
  8.24 Field 24: field separator
  8.25 Field 25: relay marker
  8.26 Field 26: crypto check digits (CCD)
  8.27 Field 27: additional data
       8.27.1 Field 27.1: transaction date
       8.27.2 Field 27.2: additional verification value(s)
       8.27.3 Field 27.3: alternative card sequence number
       8.27.4 Field 27.4: international network identification
              code
       8.27.5 Field 27.5: discretionary data
  8.28 Field 28: end sentinel
  8.29 Field 29: longitudinal redundancy check (LRC)
Bibliography

Describes specifications for financial transaction cards using track 3 and is intended to permit interchange based on the use of magnetic stripe encoded information.

This International Standard establishes specifications for financial transaction cards using track 3 and is intended to permit interchange based on the use of magnetic stripe encoded information. It specifies the data content and physical location of read/write information on track 3 and is to be used in conjunction with the relevant parts of ISO/IEC7811 and ISO/IEC7812.