The Bureau of Energy Efficiency ( BEE) has decided to upgrade the requirements for star ratings of split type room air conditioners. This regulation has raised the energy efficiency standards by about 8% for split air conditioners for the same rating band and is aimed at creating more energy efficient appliances, officials from BEE said. BEE had earlier upgraded requirements for refrigerators and plans to introduce mandatory ratings for other appliances including geysers and colour TVs by the end of next year.