This multi-Service tactics, techniques, and procedures publication for Airfield Opening, Army Techniques Publication ATP 3-17.2 Airfield Opening October 2018, is a single source, descriptive reference guide for opening and transferring an airfield. It is also known as MCRP 3-20B.1, NTTP 3-02.18, AFTTP 3-2.68, and MCRP 3-21.1B.