The last two years have seen big changes in U.S. environmental regulations and, likewise, big changes in the Environmental Law Handbook. The most important change to note is that the Environmental Law Handbook, previously published by Government Institutes for over thirty-five years and through twenty-one editions, is now published by Bernan Press, a leading publisher of government information, and the largest source for publications from U.S. government agencies and worldwide intergovernmental organizations. As GI’s flagship publication, the Environmental Law Handbook has consistently delivered a comprehensive and accessible source for the most accurate and up-to-date information on environmental laws in the United States. Each chapter is written by a recognized legal authority, and although the information represents the state of the art of the field, it is always presented in a straightforward and accessible way and in plain English, with as little legal jargon as possible. Even though the twenty-second edition of the Environmental Law Handbook is now published by Bernan, you can still rely on it to be your top source for information on the environmental legal and regulatory structure and its implications. As always, you get leading experts in the field, all of whom are practicing lawyers, giving you up-to-date information and interpretations on the major environmental laws. Chapters likewise offer actionable advice for businesses regarding how to comply with new and updated federal regulations. As in previous editions, the twenty-second edition of the Environmental Law Handbook begins with a general introduction to environmental law and a chapter on how the laws are enforced before delving into individual environmental laws and issues. Several chapters have been extensively updated, including the chapters on the Clean Air Act, the Safe Drinking Water Act, climate change, pesticides, and the Comprehensive Environmental Resource, Compensation, and Liability Act. What all of this means is that the twenty-second edition of the Environmental Law Handbook will continue to serve as your go-to reference for environmental laws and regulations. It is a timely, comprehensive, and authoritative resource, and without a doubt the best of its kind.