This Army Techniques Publication (ATP), "Army Medical Logistics," ATP 4-02.1 addresses the role of medical logistics (MEDLOG) in the Army Health System (AHS). It covers MEDLOG operations from the support battalions at the tactical level to the medical command (deployment support) (MEDCOM [DS]) and theater sustainment command where the critical crossover occurs between strategic agencies within the AHS and commands and the operational units providing logistics support in-theater. Army MEDLOG, as one of the ten medical functions, is an integral part of the AHS. It provides intensive life cycle management of medical products and services that are used almost exclusively by the AHS and its joint partners and are critical to the successful delivery of Army medical capabilities. Army MEDLOG support is tailored to anticipate and effectively respond to medical requirements through the provision of uninterrupted, end-to-end sustainment of the AHS mission across the range of military operations. Providing timely and effective AHS support is a team effort which integrates the clinical and operational aspects of the mission and requires collaboration between the medical logisticians, health care providers, distribution managers, and other partners within the Military Health System. Army MEDLOG includes management of the following functions: Medical materiel (Class VIIIA); Medical equipment maintenance and repair; Optical fabrication and repair; Patient movement items (PMI); Medical gases; Blood (Class VIIIB) storage and distribution; Regulated medical waste (including hazardous material); Medical facilities and infrastructure; Medical contracting.