SOUTHFIELD, Mich. - Thirteen U.S.-based Grede facilities won 11 gold, one silver, and one commendation distinctions from Liberty Mutual Insurance for outstanding health and safety at their work sites. The awards are calculated based on the number of hours worked relative to the number of recordable injuries and illnesses per 100 employees that result in days away from work, restricted work activities, and/or job transfers over a select period of time. Low occurrences of injuries result in lower DART rates.