Grey fleet and fuel management will be two of the key issues covered at the annual Hit for Six conferences.
The topics covered are created from a survey of fleet decision-makers who were asked to list the most important issues they are facing.
The six subjects are then taken from the results.
They are risk management, grey fleet management, green fleet management, effective purchasing policies, driver management and future fleet choices.
Broadcaster Declan Curry will chair the Hit for Six South conference in Oxford on September 16, while fellow broadcaster Harry Gration is to chair the Hit for Six North conference in Leeds/Bradford on September 30.
The two conferences contain the same content and are designed to reduce travelling time for fleets attending the event.
Speakers confirmed so far include Graham Feest, secretary of the Association of Industry Road Safety Officers, and Mark Lamb, senior crash investigator with Kent Police.