This Engineering and Construction Bulletin (ECB) outlines concepts, goals and provides interim guidance for the engineering and construction components associated with planning studies under the Director’s Policy Memorandum CW 2018-05 issued in May 2018, “Improving Efficiency and Effectiveness in USACE Civil Works Project Delivery (Planning Phase and Planning Activities).” A maxim of execution is that expedience is not to be prioritized over sound engineering judgment. The concepts in this ECB can also be applied, as appropriate, to other risk-informed efforts.