Corps regulations are not included directly in EMRIS because of their dynamic nature. The Directorate of Civil Works Planning and Policy Division maintains a Web page: http://www.usace.army.mil/inet/functions/cw/cecwa/branches/guidance/index.htm
that contains links to all official Corps publications for the Water Resources Development program. Official publications include the Engineer Regulations, Engineer Circulars, Engineer Pamphlets, and Engineer Manuals (ERs, ECs, EPs, and EMs). This page also links to Approved Model Agreements, Agreement Checklists, various Letters (Planning, Policy), and Miscellaneous Documents. The latter link goes to the text of the Water Resources Development Act (WRDA) 99, a Project Partnership Kit, and other valuable sites.
Regulations and guidance specific to Planning can be reached from the Planning and Policy page: http://www.usace.army.mil/inet/functions/cw/cecwa2
Guidance specific to the Regulatory program of the Corps of Engineers is found from this page: http://www.usace.army.mil/inet/functions/cw/cecwo/reg/.
All official publications of the Corps of Engineers can be accessed from the publication page: http://www.usace.army.mil/inet/usace-docs/.