The 1990s ushered in the era of deregulation, bringing a reluctance of state commissions to approve large capital expenditures for transmission and distribution (T&D). To make up for this, capital spending has increased dramatically in the last few years. Now the federal government is stepping in to help utilities prime the pump. The final regulations, issued in early 2004 by the U.S. Department of the Treasury, should make it a little easier for utilities, as well as other taxpayers, to use research and development (R&D) expenditures to help lower their effective tax rates.