CASCOM Army Sustainment Portal

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CASCOM Army Sustainment Portal

Army Sustainment Resource Portal

Formerly known as Sustainment Unit One Stop (SUOS), this portal is managed by the U.S. Army Combined Arms Support Command (CASCOM) and provides consolidated access to Army sustainment resources, including training, doctrine, lessons learned, and more.

Please check the recent activity section below for links to new and updated sustainment resources. Also find commonly referenced sustainment resources and streaming video products below. Utilize the search field and categories in the menu to find more resources.

Recent Activity

Doctrine Under Development - The following sustainment doctrinal manuals are under revision. Click here to learn more.

Ongoing Updates

Doctrine Under Development

The following manuals are currently being formally staffed through the Enterprise Task Management System Solutions (ETMS2), originally known as the Task Management Tool (TMT). If you have comments, you may also provide them on the attached standardized comment resolution matrix and submit for consolidation before the suspense date. The use of the comment matrix is mandatory to facilitate consolidating and adjudicating all comments. Please read the comment matrix primer guide on the first page of the “Blank Comment resolution matrix (CRM).dox” to understand how to capture comments correctly. Provide rationale for each comment, including page, paragraph, and line number, along with suggested correction or solution. Recommend using specific line-in/line-out comments to avoiding general comments that provide little or no specific recommended corrections. Click here for a copy of the blank comment matrix and primer. Note: Access requires CAC credentials.

Please feel free to contact us with any questions or concerns

Thanks for your contributions to our sustainment doctrinal manuals.

Note: Access to the following draft publications requires CAC credentials and access to the Army 365 SharePoint environment.

Click Here to view ADP 4-0: Sustainment (Initial Draft)
Suspense 27 May 25

Click Here to view ATP 4-10 - Multi-Service Tactics, Techniques and Procedures for Operational Contract Support (Final Draft)
Suspense 5 May 25

Click Here to view ATP 4-32.1 - Explosive Ordnance Disposal (EOD) Group and Battalion HQ Operations (Initial Draft)
Suspense 6 May 25
The LOGSTAT Podcast - The LOGSTAT is the Army's premier podcast on all things sustainment. We analyze new developments, discuss current trends, and forge the path ahead for the next generation of sustainment Soldiers. This is an original biweekly podcast that broadcasts from CASCOM on Fort Gregg-Adams, Virginia. Our goal is to support and educate the sustainment enterprise all over the globe. The episodes are short and packaged for quick consumption. In each episode, the Sustainment Harding Fellow talks with sustainment leaders on a variety of topics in the sustainment enterprise. These conversations are designed to spark discussions across the enterprise and to sharpen our skills and knowledge as sustainers. Click the buttons below to access the podcast on its various platforms.

Updated on Mar. 17, 2025
ATP 4-98 - Army Sustainment Command Ops - Army Sustainment Command (ASC) is a subordinate command of the US Army Materiel Command (USAMC). It integrates and synchronizes the delivery of USAMC materiel enterprise capabilities to supported Army Service component commands, corps, divisions, and installations through the employment of its subordinate Army field support brigades, Army field support battalions, and logistics readiness centers. ASC provides equipment and materiel support to operational Army units wherever required in support of the Army's global power projection mission and asists with integrating Logistics Civil Augmentation Program capabilities into operations.

Updated on Dec. 25, 2024
ATP 4-71 - Contracting Support Brigade Operations - Provides doctrinal guidance on how Army contracting support organizations fit into the ARFOR commander's mission construct and execution process, to include joint force commander-directed contracting missions. It serves as a guide on how United States Army Materiel Command and Army Contracting Command and its subordinate contracting support brigades and battalions are organized, deploy, and support deployed Army forces. It also provides detailed information regarding how Army Contracting Command and its subordinate structure can lead the contracting support planning and coordination effort for the Army, and, when directed, for the joint force commander. Finally, this publication provides additional information on other Army expeditionary contracting and contract support-related capabilities such as the United States Army Corps of Engineers, the United States Army Intelligence and Security Command, the Logistics Civil Augmentation Program, the United States Army Health Contracting Activity, and the Assistant Secretary of the Army for Acquisition, Logistics, and Technology forward support teams, along with the integration of these capabilities into the overall contracting support effort in a designated operational area.

Updated on Oct. 5, 2024

Contested Logistics Industry Week (CLIW) Speech - In a speech Friday, 20 September 2024, MG Michelle Donahue, Commanding General of U.S. Army Combined Arms Support Command, discussed the future of Army Sustainment within the context of Contested Logistics with over 300 industry partners and sustainment leaders. She emphasized a holistic approach to modernization and the importance of a comprehensive approach that includes people, processes, data, and technology. She echoed Chairman Brown's need for an integrated approach to logistics, with efforts not siloed and effective solutions shared among different entities. Sustainment modernization efforts are focused on precision sustainment, predictive logistics, autonomous technologies, and demand reduction. The Army must have the ability to protect, preserve, and regenerate combat power on a transparent battlefield against a formidable adversary and set the theater in a land-based and maritime environment, enabled by dynamic decision-making, while conducting multi-functional and multi-modal sustainment operations.

Updated on Sep. 24, 2024

CLIW

ATP 4-42.2 - Supply Support Activity Operations - Newly updated, this Army Techniques Publication provides specific guidance on establishing and operating a supply support activity.

Updated on Sep. 18, 2024

Commonly Referenced Sustainment Resources

FM 4-0: Sustainment Operations Resources - To facilitate the FM 4-0 discussion, the following resources are provided as tools to assist leaders and soldiers at all levels and echelons explore and expand the dialogue and to provide learning on conducting sustainment operations in a multidomain contested logistics environment. Click to view.

Resource Owndership: Doctrine

FM 4-0 - Sustainment Operations Resources

To facilitate the FM 4-0 discussion, the following resources are provided as tools to assist leaders and soldiers at all levels and echelons explore and expand the dialogue and to provide learning on conducting sustainment operations in a multidomain contested logistics environment:

Please feel free to contact us with any questions or concerns

FM 4-0: Sustainment Operations:
Click Here to link directly to the approved keystone sustainment publication, FM 4-0 that describes how sustainment roles, missions, and functions are embedded into all military multidomain operations at echelon. The publication also discusses implications for conducting sustainment in a contested logistics environment arrayed against the operational framework to include considerations for operations in a maritime environment.

FM 4-0: Sustainment Operations Video:
Click Here to view the TRADOC CAC and CASCOM Commanding Generals providing an overview of the FM 4-0 revision. The overview highlights the major changes within the manual's chapters highlighting sustainment support to multidomain operations.

FM 4-0: YouTube Video:
Click Here to view a video produced by the combined arms directorate that expands the FM 4-0 discussion on key changes in the manual.

FM 4-0: Train the Trainer Slides:
Click Here to access slides, broken into a short and long version, that provide a summary of big ideas and key points in FM 4-0 with facer pages to facilitate a more detailed discussion of the publication with supporting slides.
Sustainment Force Structure Book - The Sustainment Force Structure Book is a data reference and resource that provides a snapshot of sustainment organizations by Standard Requirements Code (SRC). This snapshot includes a brief statement of the organization's mission and functions, capabilities, employment, basis of allocation, doctrinal mobility and dependencies derived from its base Table of Organization and Equipment (TOE). The information provided on sustainment organizations reflects a fully modernized and approved organizational structure for personnel and equipment. Modification Table of Organization and Equipment (MTOEs) for each organization will vary based on force management guidance and priorities.

Resource Ownership: CASCOM Force Development Directorate Requires CAC credentials

Access the Force Management System (FMSWeb) for access to Unit MTOEs. Note: Access requires CAC credentials.
OPLOG Planner - Click to request via MS Teams. OPLOG Planner is designed to assist logistics planners in calculating supply usage estimates in support of operations. This program is specifically designed to support operations typically associated with multi-phase operation plans (OPLAN) and operation orders (OPORD).

Resource Ownership: Planning Data Branch, CASCOM Requires CAC credentials

If you are unable to access OPLOG Planner or have questions, please contact the Planning Data Branch.
Quick Logistics Estimation Tools - Click to request via MS Teams. Provides links to abbreviated logistics estimation spreadsheet tools for calculating initial class of supply requirements, such as required LBS, STONS, Pallets, and Platform; based on force strength, operational phase, and climate. Includes: Platform Calculator, Quick Logistics Estimation Tool, Food and Water Tool, Class III Bulk Estimation Tool, and Convoy Planning Tool.

Resource Ownership: Planning Data Branch, CASCOM Requires CAC credentials
IPPS-A Training - How-To Videos - A series of training videos which aim to relate current HR practices to IPPS-A business rules, offers translations from HR Legacy Systems to IPPS-A, provides HR professionals, commanders and managers a learning resource for their roles in IPPS-A, and demonstrates the views and methods of IPPS-A in a training database.

Resource Ownership: AG School, SSI Requires CAC credentials
The Preventive Maintenance Magazine - Informs Army and DoD readiness by emphasizing preventive maintenance and promoting proper maintenance and supply procedures (AR 700-138). Review of the magazine will be a regular part of unit readiness efforts. A reader service is available to answer maintenance and supply questions.

Resource Ownership: Army Sustainment Command (ASC)
Army OCS Resource Portal - Provides the following OCS resources: What is OCS; OCS training aids, publications, documentation, articles and more.

Resource Ownership: OCS, CASCOM Requires CAC credentials
Sustainment Training Strategy 21 - This strategy is designed to support building and assessing Large Scale Combat Operations (LSCO) sustainment unit progressive training readiness, and support Army Chief of Staff's intent that, “We must be ready to defeat any enemy, anywhere, whenever called upon, under any condition.” The core of strategy are the three appendices, which provide a detailed description of unit training paths by echelon with emphasis on platoon level training. They contain Notional Training Path Models for “how to train” at Platoon, Company, and higher headquarters level (Battalion, Brigade, TSC, and ESC).

Resource Ownership: Collective Training Requires CAC credentials
ATP 4-91: Division Sustainment Operations - ATP 4-91 describes sustainment at echelon and provides details on sustainment organizations operating at the division echelon. It is written for commanders, staffs and Soldiers at all levels, leaders and instructors at military institutions, students, and doctrine and training developers. It provides relevant information on the capabilities of the DSB and DSB employment considerations.

Resource Ownership: Doctrine
GCSS-Army and Property Accountability - Access training resources for the GCSS-Army system, as well as important resources such as the Property Accountibility Virtual Playbook, SSA Multimedia Package, and more.

Resource Ownership: Quartermaster, CASCOM
Command Maintenance Discipline Program (CMDP) - Commanders, Staff, and Soldiers of Active, Reserve, and National Guard Component Sustainment Brigades, BSBs, TSCs, ESCs and other Sustainment and Logistics formations of the Operational Force should use the Command Maintenance Discipline Program to learn more about their role in understanding and improving readiness rates within their units and within the Generating Force.

Resource Ownership: Ordnance Requires CAC credentials
Deployer's Toolbox - The Deployer's toolbox is a collaborative effort designed to aggressively pursue improvements to the deployment processes in order to advance, standardize, implement, and maintain Army deployment readiness and capability.

Resource Ownership: Transportation DPMO Requires CAC credentials

Streaming Videos