Height is in inches or cm depending on country. Otherwise, this field represents the last valid date. If expiration date year is 2077, license never expires. License License Number 3/7 2 Includes overflow from field 7 $p->parse_magstripe FIELDS Field Name AAMVA Field # Track SYNOPSIS $track1='%ORSPRINGFIELD ^ SIMPSON $HOMER$J ^ 742 EVERGREEN TERR ^?' # % and ? are sentinals. Not all magnetic stripe readers can read track 3. Load the tracks you have available, only track 1 is mandatory. Starting and ending sentinals in the track data are optional. You should refer to the latest specification at for details on the field contents. Most data is available both in its raw and decoded form. License is a parser/decoder for the American Association of Motor Vehicle Administrators(AAMVA) format that is used to encode the magnetic stripe found on Driver's Licenses in the US and Canada. NAME Parser::AAMVA::License - AAMVA Driver's License Magnetic Stripe Parser DESCRIPTION NAME Parser::AAMVA::License - AAMVA Driver's License Magnetic Stripe Parser.