This publication, MDO Multi-Service Tactics, Techniques, and Procedures for Military Diving Operations February 2015 is also known as ATP 3-34.84, MCRP 3-35.9A, NTTP 3-07.7, AFTTP 3-2.75, or CGTTP 3-95.17, by each of the separate military services. Throughout the history of diving, each of the five United States Armed Services has evolved its diving capabilities to meet the demands of Service-specific mission requirements. Their divers have specialized training, equipment, and capabilities based on those Service-specific missions. These dive capabilities are detailed in appendices B through G. The Military Diving Operations (MDO) MTTP publication is designed to assist commanders and planning staffs who require dive operations capability. It provides considerations for immediate response as well as deliberate planning for situations requiring dive capabilities. It describes the 13 dive mission areas (DMAs) performed by military divers, describes the 13 different types of military divers within the Services, and lists associated capabilities and limitations for the types of divers. Chapter I introduces MDO along with a short vignette on how divers assist the joint force commander. Chapter II describes the thirteen major DMAs and their subcategories that may be performed by military divers. Chapter III outlines considerations for coordinating and planning dive operations. It provides decision aids to assist the staff planner with determining which DMAs and subcategories are required to support the overall mission. Appendix A provides a quick-reference chart listing dive unit capabilities to accomplish each of the DMAs and subcategories. Appendices B through G provide Service-specific dive missions, organizations, employment concepts, and capabilities: Appendix B United States Navy Diving Appendix C United States Army (USA) Diving Appendix D United States Marine Corps (USMC) Diving Appendix E United States Air Force (USAF) Diving Appendix F Special Operations Forces (SOF) Diving Appendix G Non-Department of Defense Diving Appendix H provides a comprehensive list of dive program points of contact, including Service program managers and major units. Appendix I provides a list of equipment and restrictions common to divers from all Services.