The Ohio Bureau of Workers' Compensation announced today it will be decreasing employers' premium rates by 3.9 percent effective July 1, 2010.  BWC Administrator, Marsha Ryan, stated the reduction was done pursuant to the Bureau's ongoing efforts to implement changes that were identified in a study completed by Deloitte Consulting, LLP.  According to the BWC announcement, the reduction of premiums is just one step in "making certain the amount paid by each employer matches the risk they bring to the system."