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Skip to main content (Press Enter). US Army Corps of Engineers Official Publications of HQ USACE Website ® * USACE Publications * Army Regulations - Supplements * CG's Policy Notices * Engineer Circulars * Engineer Design Guides * Engineer Forms * Engineer Manuals * Engineer Pamphlets * Engineer Regulations * Engineer Technical Letters * Engineer Standards - Graphics * Miscellaneous * Army Publications * Related Publications * Contact * USACE Office Locator OFFICIAL PUBLICATIONS OF THE HEADQUARTERS This collection of publications is the single official repository for official U.S. Army Corps of Engineers (USACE) Engineering Regulations (ERs), Engineering Circulars (ECs), Engineering Manuals (EMs) and other official public documents originating from Headquarters USACE. In order to read or print these documents, you must download the free Adobe Acrobat Reader available at http://www.adobe.com. These publications are provided in secure portable document format (PDF). Our document security allows for reading, high resolution printing, and accessibility for the blind. UPDATES OUR NEW WEBSITE We hope you like the look of our new website. We've tried to keep the same functionality our users are accustomed to and add some new features that will help you. Please provide us feedback with your thoughts and ideas to better serve you. QUESTIONS? Having trouble finding what you are looking for? Not sure what you need or where to look? Ask a Librarian. We have the experts available to help you. If you have a question about a specific USACE Publication, please contact us at hqpublications@usace.army.mil. If you have a change request, please submit the Publication Change Request Form to us at hqpublications@usace.army.mil ESSAYONS Our Mission Deliver vital engineering solutions, in collaboration with our partners, to secure our Nation, energize our economy, and reduce disaster risk. About the Official Publications of HQ USACE Website This collection of publications is the single official repository for official Engineering Regulations (ERs), Engineering Circulars (ECs), Engineering Manuals (EMs) and other official public documents originating from Headquarters U.S. Army Corps of Engineers * * * * * Accessibility * Contact Us * FOIA * Information Quality Act * Link Disclaimer * No Fear Act * Privacy & Security * Public Inquiries * Site Map * USA.gov * SHARP * iSALUTE