OID value: 2.16.840.1.113733.1.7.23.6
OID description:
Verisign Certification Policy for Extended Validation (EV) certificates.
See appendix B1, section D, section 7 (a) on page 86 of the CPS version 3.8 at http://www.verisign.com/repository/CPSv3.8_final.pdf
URL for further info: http://www.verisign.com/repository/CPSv3.8_final.pdf
See also the OID Repository website reference for 2.16.840.1.113733.1.7.23.6