Sound familiar? You're right, it's not a new concept. It's an expansion of a previous energy efficiency rule introduced in April. Now there are two new initiatives designed to increase energy efficiency and decrease emissions. The rule may be applied to the nation’s 300,000 federal buildings and as well as any new federal buildings. These new energy-use rules could save $15B over the next 30 years. What additional steps do you think will optimize energy performance for the largest building owner and operator in the U.S?