A final report from the Transport Accident Investigation Commission on the Rena grounding is out today.

The results of the inquiry will be released this afternoon in Tauranga.

The commission’s Rena investigation has been into the circumstances leading up to the grounding, and not into the oil spill response or salvage.

The report's not expected to lay blame or liability - TAIC's role is to look at the causes of incidents with a view to avoiding similar occurrences in the future.