ATP 4-91 is listed as current in the Army Publishing Directorate catalog (publication date 2022-11-08).

Where do I download the official ATP 4-91?

The official copy is published on Army Publishing Directorate (https://armypubs.army.mil).

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ATP 4-91 — DIVISION SUSTAINMENT OPERATIONS (THIS ITEM IS PUBLISHED W/ BASIC INCL C1)

ATP 4-91 is listed as current Current
in the Army Publishing Directorate catalog as of our last index refresh (2026-07-11).

Branch	U.S. Army
Series	ATP
Publication date	2022-11-08 (3.7 years ago)
Status	Current
Proponent / OPR	TRADOC
Source of record	Army Publishing Directorate

Official document (Army Publishing Directorate)

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Nearby in the ATP series

ATP 4-71 — CONTRACTING SUPPORT BRIGADE Current
ATP 4-90 — BRIGADE SUPPORT BATTALION Current
ATP 4-90.5 — LOGISTICS PLATOON LEADER Current
ATP 4-92 — FIELD ARMY AND CORPS SUSTAINMENT OPERATIONS Current
ATP 4-93 — THEATER SUSTAINMENT OPERATIONS Current

This is an unofficial index built from the public catalog. The controlling copy is always the one on Army Publishing Directorate — verify there before citing ATP 4-91 in an official product.