ATP 4-44/MCRP 3-40D.14 is the United States Army and United States Marine Corps manual for planning and executing water support for missions conducted across the full conflict continuum. In the United States Army, water support operations are a Quartermaster Corps function as well as a component of Army logistics. Army logistics is an element of the sustainment warfighting function, which provides the operational commander freedom of action, extended operational reach, and operational endurance. Water support operations include water treatment, storage, and distribution. Water treatment is a field service function, while water storage and distribution are supply functions. In the Marine Corps, water support operations are a general engineering function as well as a component of tactical-level logistics.
DesignationATP 4-44
EditionSep 2025
StatusActive
ProponentTRADOC
Pages150
FunctionSustainment
CollectionCurrent Doctrine
Approved for public release; distribution is unlimited. This publication supersedes ATP 4-44/MCRP 3-40D.14, dated 16 De