ISO 7813

ISO 7813 defines standards for banking cards, such as the thickness and the rounding for the corners. It is an extension of ISO 7810. This standard also defines the magnetic strip encoding on each financial institution card such as ATM or credit card.

Thickness of card is 0.76 mm. Corners are rounded with a radius of 3.18 mm.

Tracks

Track 1

The Track 1 Layout is defined as:
#SS = Start Sentinel "%"
#FC = Format Code
#PAN = Primary Account Number limited to 19 digits
#FS = Field Separation "^"
#Name = Primary Account Holder Name limited to 26 alphanumeric characters
#FS = Field Separation "^"
#Additional Information = Expiration Date, Offset, Encrypted PIN, etc.
#ES = End Sentinel "?"
#LRC = Longitudinal Redundancy Check SS | FC | PAN | FS | Name | FS | Additional Data | ES | LRC

Track 2

The Track 2 Layout is defined as:
#SS = Start Sentinel ";"
#PAN = Primary Account Number limited to 19 digits (with -optional- Luhn checkdigit)
#FS = Field Separator "="
#ED = Expiration Date = YYMM Format or "=" if not present
#SC = Service Code: 3 digits or "=" if not present
#DD = Discretionary Data: balance of available digits
#ES = End Sentinel "?"
#LRC = Longitudinal Redundancy Check according to ISO 7811-2 SS | PAN | FS | Expiration Date | Service Code | Discretionary Data | ES | LRC