The Environmental Protection and Regulation Division (EPRD)Region Boundaries were created after the DEC restructure in 2004. These boundaries were further modified with the March 2007 update of the LGA boundaries on which the Branch boundaries are based. A slight change with the Mid-western LGA boundary which affected the EPRG Branch Boundary between North East and North West was agreed to by the North East and North West EPRG Managers as well as the Hunter Regional Manager. These boundaries were renamed from EPRD to EPRG when the Division was changed to a Group.