by David J. Freeman and Jesse Hiney (March 2010; 5 pages) This article discusses New York City's legislation to promote the greening of its building stock. The new laws will require benchmarking of existing buildings, energy audits, improved building maintenance, and lighting and other energy-related upgrades as well as public disclosure of energy and water use for affected buildings. The authors summarize the new requirements, make some predictions about where the green building trend is heading, and discuss what building owners and operators and developers can do to prepare for these developments.