This panel will provide an overview of the major changes in IEEE Std 519 which deals with harmonic control in power systems. The 2014 edition of this Standard generally retains the existing approach of managing harmonics as a shared-responsibility between system owner/operators and system users, but several major changes have been made. The changes, with respect to the long-standing 1992 edition, include clarifying the intended applications of the recommended harmonic limits, specifying the ways in which harmonics are to be measured and reported, effective applications of the limits in emerging applications such as renewable generation and new topics in the 2014 edition such as interharmonics. This session will be applicable to all stakeholders in the power quality area.