California Driver S License Restriction Codes 47 59
California driver’s license issue date might be difficult to find on your driver license. If you look at the driver’s license card carefully, you can see that your California driver’s license issue date is written on the right bottom corner of your card, marked as ISS. In the sample California driver’s license card, you can see ISS is September 30, 2010. So this is your official issue date. It is the abbreviation of Issue Date, shortened as ISS. And here how the reverse side of Driver License looks: What is DD on California Driver’s License?

Hawaii Driver's License Restriction Codes
There is also other abbreviations on the card. On the left of ISS, you can see “DD”. If you wonder what is DD on California driver’s license? DD stands for “Document Discriminator” which shows your number and also these numbers indicates which you got your license from. What does RSTR stand for? RSTR stands for “Restrictions”. There are various restrictions which can be placed on a driver’s license. Most common example is, some drivers must have prescription glasses when driving.