This Article is adapted from The Law of Green Buildings: Regulatory and Legal Issues in Design, Construction, Operations, and Financing ch. 1 (J. Cullen Howe & Michael B. Gerrard eds. 2010). Copyright © 2010 by the American Bar Association and co-published with ELI Press. Reprinted by permission. This book provides an overview of green building law from a variety of well-know attorneys and other professionals in the green building field. These legal issues are likely to evolve quickly—and perhaps radically—in the coming years.

[Editors' Summary: This Article is adapted from The Law of Green Buildings: Regulatory and Legal Issues in Design, Construction, Operations, and Financing ch. 2 (J. Cullen Howe & Michael B. Gerrard eds., 2010). Copyright © 2010 by the American Bar Association and co-published with ELI Press. Reprinted by permission. This book provides an overview of green building law from a variety of well-known attorneys and other professionals in the green building field. These legal issues are likely to evolve quickly—and perhaps radically—in the coming years.

The CAA's PSD program is extraordinarily complex. This Article is the fourth in a series on PSD under the CAA. The first three Articles, which appeared in the December 2005, January 2006, and January 2008 issues of News & Analysis, focused on baselines, increments, and ceilings, and on the permit triggers for new facilities. In this Article, Prof.