What does the blood type oe mean on drivers licenses?

The letters "OE" on a driver's license typically do not refer to blood type. They typically stand for "Operator's Education" or "Operator Endorsement."

"Operator's Education" indicates that the driver has completed a state-approved driver's education course. This can be a requirement for obtaining a driver's license in some jurisdictions, especially for younger drivers.

"Operator Endorsement" refers to an additional qualification or authorization that the driver has obtained, such as a commercial driver's license (CDL) endorsement for operating certain types of vehicles, such as large trucks or buses.

The actual meaning of "OE" on a driver's license can vary depending on the specific jurisdiction and the policies of the issuing authority, so it's best to consult the official driver's license manual or website for the state in question for more precise information.