Maine lump sum settlement agreements that are arranged out of court between the parties
                  and submitted to the WC Board for approval are effective upon execution. Unless either
                  party can prove there was fraud or mistake of fact, the agreement can only be reopened
                  to correct a clerical error.
               
               Many of the lump sum settlements involve a structured settlement. For more information
                  on structured settlements, see DI 52150.065D. Also, pay close attention to the wording in lump sum awards, as a life expectancy rate expressed
                  in the award might have been calculated based on the net lump sum instead of the gross
                  lump sum.