U.S. Army Test and Evaluation Command (ATEC)
Army test and evaluation command · Evidence strength: DIRECT
ATEC provides Army test and evaluation support for systems, equipment, and capabilities before and during fielding decisions.
ATEC is the parent Army test and evaluation command context for Operational Test Command and other test organizations.
Location: Aberdeen Proving Ground, Maryland, with subordinate test activities across multiple installations.
Components: U.S. Army Operational Test Command, U.S. Army Evaluation Center, U.S. Army Aberdeen Test Center, Dugway Proving Ground, U.S. Army Electronic Proving Ground, Operational Evaluation Command, U.S. Army Redstone Test Center, U.S. Army White Sands Test Center, U.S. Army Yuma Test Center
Test and evaluation creates acquisition evidence that informs procurement, production, sustainment, and modernization decisions.
ATEC sits at the intersection of operational requirements, technical testing, user feedback, readiness, and acquisition risk.
Joel-specific biography evidence states he directed procurement and contracting operations for ATEC; official Army sources are used for command context.
Sources: Joel Klemmer Executive Biography - June 2026, ATEC | Army Test and Evaluation Command, Home - ATEC, What We Do
U.S. Army Operational Test Command (OTC)
Operational test command · Evidence strength: CONTEXTUAL
OTC conducts independent operational testing that helps determine whether Army systems are effective, suitable, and survivable in realistic operational conditions.
OTC is an ATEC subordinate command and operational testing component.
Location: Fort Cavazos, Texas, formerly Fort Hood.
Components: Operational test directorates, Airborne and Special Operations Test Directorate, Air Defense Artillery Test Directorate, Fires Support Test Directorate, Intelligence Electronic Warfare Test Directorate, Aviation Test Directorate, Maneuver Test Directorate, Mission Command Test Directorate, Maneuver Support and Sustainment Test Directorate, Soldier and unit test events, Air defense and fires test contexts, Maneuver and mission command operational testing
Operational tests influence acquisition confidence, fielding decisions, sustainment planning, and contracting support requirements.
OTC connects equipment, soldiers, doctrine, threat-representative scenarios, and test evidence.
The connection is contextual unless a specific Joel role document names OTC; ATEC biography evidence supports broader command environment relevance.
Sources: U.S. Army Operational Test Command has new commander, The Operational Test Command supports acquisition and fielding decisions, FY 2027 Army RDT&E Budget Activity 6 Justification Book, ATEC | Army Test and Evaluation Command, Joel Klemmer Executive Biography - June 2026
Department of Veterans Affairs National Acquisition Center (VA NAC)
Federal healthcare acquisition organization · Evidence strength: DIRECT
VA NAC supports national acquisition, contracting, and logistics requirements for VA healthcare and related federal customers.
VA NAC is part of the VA procurement, acquisition, and logistics environment rather than an Army command.
Location: Hines, Illinois and VA acquisition/logistics network context.
Components: Federal Supply Schedule context, Medical supply acquisition, Pharmaceutical and healthcare procurement, Contract administration and vendor oversight
The organization is directly relevant to healthcare procurement, supplier oversight, medical supply continuity, and federal contract execution.
Not a test command; relevance is acquisition, lifecycle contracting, and healthcare supply systems.
Joel-specific biography evidence states VA NAC leadership in federal healthcare acquisition strategy and contract execution.
Sources: Joel Klemmer Executive Biography - June 2026, National Acquisition Center
Defense Information Systems Agency (DISA)
Defense information technology and communications agency · Evidence strength: DIRECT
DISA provides enterprise information technology, network, communications, cyber, and command-support capabilities for the Department of Defense.
DISA is a Department of Defense combat support agency, not an Army subordinate command.
Location: Fort Meade, Maryland with global mission support.
Components: Enterprise network services, Cloud and communications services, Cybersecurity infrastructure, Satellite communications and mission systems support
DISA procurement connects technology, communications, cybersecurity, service continuity, and mission-critical vendor ecosystems.
Testing relevance is contextual through technology assurance and mission support rather than ATEC operational testing.
Joel-specific biography evidence states DISA procurement and contracting experience tied to communications and secure network portfolios.
Sources: Joel Klemmer Executive Biography - June 2026, Defense Information Systems Agency
U.S. Army Corps of Engineers Sacramento District (USACE Sacramento District)
Army engineering and infrastructure contracting context · Evidence strength: DIRECT
USACE districts deliver engineering, infrastructure, construction, environmental, and related mission support.
USACE is an Army engineering organization with regional districts including Sacramento District.
Location: Sacramento, California regional district context.
Components: Construction contracting, Services and supplies contracting, Infrastructure delivery, Engineering mission support
USACE contracting connects federal acquisition to infrastructure, construction services, engineering mission support, and public capital execution.
Not a test command; relevance is infrastructure acquisition and contracting.
Joel-specific biography evidence states USACE Sacramento District service and supply contracting results.
Sources: Joel Klemmer Executive Biography - June 2026, U.S. Army Corps of Engineers
U.S. Army Evaluation Center (AEC)
Army evaluation organization · Evidence strength: BACKGROUND
AEC represents the ATEC evaluation context for turning test evidence into Army effectiveness, suitability, survivability, and decision-support assessments.
AEC is identified in official ATEC command-structure context as part of the ATEC organization.
Location: Aberdeen Proving Ground, Maryland.
Components: System evaluation, Effectiveness assessment, Suitability assessment, Survivability assessment
Evaluation findings inform acquisition confidence, production decisions, fielding choices, and risk posture.
AEC connects test events and technical findings to formal evaluation judgments used by Army decision-makers.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific AEC assignment.
Sources: Who We Are, Safety Release, Joel Klemmer Executive Biography - June 2026
Aberdeen Test Center (ATC)
Army developmental test center · Evidence strength: BACKGROUND
ATC provides developmental testing context for Soldier systems, live-fire testing, combat vehicles, special-purpose vehicles, and related Army equipment.
ATC is identified in official ATEC command-structure context as an ATEC test center.
Location: Aberdeen Proving Ground, Maryland.
Components: Soldier systems testing, Live-fire testing, Combat vehicle testing, Special-purpose vehicle testing
Developmental test findings influence acquisition risk, vendor correction, production readiness, and sustainment planning.
ATC is a direct developmental-test context for proving whether equipment performs as required before operational fielding.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific ATC assignment.
Sources: Who We Are, Aberdeen Test Center, What We Do, Joel Klemmer Executive Biography - June 2026
Dugway Proving Ground (DPG)
Army proving-ground test organization · Evidence strength: BACKGROUND
DPG is part of the official ATEC test organization context for proving-ground activity and specialized Army test environments.
DPG is identified in official ATEC command-structure context as part of the ATEC organization.
Location: Dugway, Utah.
Components: Proving-ground test environments, Specialized test ranges, Army equipment test support, Environmental and operational test context
Proving-ground evidence can shape acquisition risk, test adequacy, production confidence, and fielding readiness.
DPG adds specialized range and proving-ground context to the broader ATEC test-and-evaluation ecosystem.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific DPG assignment.
Sources: Who We Are, Joel Klemmer Executive Biography - June 2026
Electronic Proving Ground (EPG)
Army C5ISR developmental test organization · Evidence strength: BACKGROUND
EPG provides ATEC context for C5ISR, command-and-control, communications, cyber, intelligence, surveillance, and reconnaissance test activity.
EPG is identified in official ATEC command-structure context as part of the ATEC organization.
Location: Fort Huachuca, Arizona.
Components: C5ISR testing, Communications testing, Command-and-control test context, Cyber and intelligence system test context
C5ISR test evidence can affect acquisition confidence, communications portfolio risk, interoperability decisions, and sustainment planning.
EPG connects technical test activity to mission-command and defense-communications systems.
Contextual through the documented ATEC command environment and the separate biography evidence for defense communications procurement experience.
Sources: Who We Are, Electronic Proving Ground, Joel Klemmer Executive Biography - June 2026
Redstone Test Center (RTC)
Army missiles, aviation, and sensors test center · Evidence strength: BACKGROUND
RTC provides ATEC context for missiles, aviation, sensors, and developmental testing tied to Army future-force capabilities.
RTC is identified in official ATEC command-structure context as an ATEC test center.
Location: Redstone Arsenal, Alabama.
Components: Missile test context, Aviation test context, Sensor test context, Future-force developmental testing
Missile, aviation, and sensor test results can affect acquisition risk, production confidence, vendor correction, and modernization decisions.
RTC connects high-consequence defense systems to developmental-test evidence inside the ATEC ecosystem.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific RTC assignment.
Sources: Who We Are, Redstone Test Center, Joel Klemmer Executive Biography - June 2026
White Sands Test Center (WSTC)
Army test center · Evidence strength: BACKGROUND
WSTC is part of the official ATEC test-center context for Army equipment and system test activity at White Sands Missile Range.
WSTC is identified in official ATEC command-structure context as part of the ATEC organization.
Location: White Sands Missile Range, New Mexico.
Components: White Sands test context, Missile range test environment, Army equipment test support, System performance evidence
White Sands test evidence can support acquisition risk decisions, fielding confidence, and modernization planning.
WSTC adds missile-range and system-performance context to the broader ATEC evidence environment.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific WSTC assignment.
Sources: Who We Are, Joel Klemmer Executive Biography - June 2026
Yuma Test Center (YTC)
Army test center · Evidence strength: BACKGROUND
YTC is part of the official ATEC test-center context for Army equipment and system test activity at Yuma Proving Ground.
YTC is identified in official ATEC command-structure context as part of the ATEC organization.
Location: Yuma Proving Ground, Arizona.
Components: Yuma proving-ground test context, Army equipment test support, Operational environment testing, System performance evidence
Yuma test evidence can support acquisition confidence, production readiness, fielding risk, and sustainment planning.
YTC adds proving-ground and system-performance context to the broader ATEC test-and-evaluation ecosystem.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific YTC assignment.
Sources: Who We Are, Joel Klemmer Executive Biography - June 2026
Operational Evaluation Command (OEC)
Army operational evaluation organization · Evidence strength: BACKGROUND
OEC provides evaluation context around system effectiveness, suitability, and survivability inside the ATEC evidence environment.
OEC is treated here as an ATEC evaluation context supported by official ATEC source material.
Location: ATEC evaluation organization context.
Components: Effectiveness evaluation, Suitability evaluation, Survivability evaluation, Decision-support evidence
Operational evaluation language shapes acquisition confidence, risk decisions, and fielding readiness.
OEC links test evidence to evaluation criteria that matter for real-world system performance.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific OEC assignment.
Sources: Operational Evaluation Command, Who We Are, What We Do, Joel Klemmer Executive Biography - June 2026
Airborne and Special Operations Test Directorate (ASOTD)
OTC forward test directorate · Evidence strength: BACKGROUND
ASOTD is part of the OTC directorate structure supporting operational testing for airborne and special-operations warfighting contexts.
ASOTD is listed in official Army budget justification material as a forward OTC test directorate.
Location: Fort Liberty, North Carolina.
Components: Airborne operational test context, Special operations test context, Soldier-centered operational testing, Acquisition and fielding support
Operational test evidence from airborne and special-operations contexts can inform acquisition risk and fielding confidence.
ASOTD adds specialized operational environments to the OTC evidence base.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific ASOTD assignment.
Sources: FY 2027 Army RDT&E Budget Activity 6 Justification Book, The Operational Test Command supports acquisition and fielding decisions, Joel Klemmer Executive Biography - June 2026
Air Defense Artillery Test Directorate (ADATD)
OTC forward air-defense test directorate · Evidence strength: BACKGROUND
ADATD provides OTC air-defense operational-test context, including Patriot-related modernization testing and soldier-centered field evidence.
ADATD is listed in official Army budget justification material as a forward OTC test directorate.
Location: Fort Bliss, Texas.
Components: Air defense operational testing, Patriot modernization test context, Fort Bliss test activity, Soldier and unit participation
Air-defense operational tests inform acquisition confidence, modernization risk, fielding readiness, and sustainment planning.
ADATD connects air-defense systems to operationally realistic Soldier test environments.
Contextual through the documented ATEC command environment; this record does not claim Joel-specific Patriot or ADATD participation.
Sources: FY 2027 Army RDT&E Budget Activity 6 Justification Book, Fort Bliss ADA Soldiers contribute to modernization during Patriot missile test, Joel Klemmer Executive Biography - June 2026
Fires Support Test Directorate (FSTD)
OTC forward fires test directorate · Evidence strength: BACKGROUND
FSTD is part of the OTC directorate structure for fires-related operational testing and acquisition support.
FSTD is listed in official Army budget justification material as a forward OTC test directorate.
Location: Fort Sill, Oklahoma.
Components: Fires operational testing, Artillery and fires modernization context, Fort Sill test activity, Air-defense and fires overlap
Fires test evidence can influence acquisition decisions, modernization confidence, fielding readiness, and risk posture.
FSTD connects fires systems and units to operational-test evidence inside OTC.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific FSTD assignment.
Sources: FY 2027 Army RDT&E Budget Activity 6 Justification Book, Fort Bliss ADA Soldiers contribute to modernization during Patriot missile test, Joel Klemmer Executive Biography - June 2026
Intelligence Electronic Warfare Test Directorate (IEWTD)
OTC forward intelligence and electronic-warfare test directorate · Evidence strength: BACKGROUND
IEWTD provides OTC operational-test context for intelligence, electronic warfare, surveillance, reconnaissance, biometrics, and counter-threat systems.
IEWTD is listed in official Army budget justification material as a forward OTC test directorate and is documented by Army coverage as aligned under OTC.
Location: Fort Huachuca, Arizona.
Components: Intelligence system testing, Electronic warfare testing, ISR test context, Counter-threat system testing
IEWTD test evidence can influence acquisition confidence for intelligence, electronic-warfare, and counter-threat capabilities.
IEWTD connects high-information operational systems to realistic Soldier and unit test environments.
Contextual through the documented ATEC command environment and separate defense communications context; this record does not claim a separate Joel-specific IEWTD assignment.
Sources: FY 2027 Army RDT&E Budget Activity 6 Justification Book, Intelligence Electronic Warfare Test Directorate realigned under U.S. Army Operational Test Command, Joel Klemmer Executive Biography - June 2026
Aviation Test Directorate (AVTD)
OTC aviation test directorate · Evidence strength: BACKGROUND
AVTD plans, conducts, and reports operational tests on Army aviation-related equipment, including manned and unmanned aviation systems.
AVTD is listed in official Army budget justification material as an OTC test directorate at Fort Cavazos/West Fort Hood.
Location: West Fort Hood / Fort Cavazos, Texas.
Components: Manned aviation testing, Unmanned aviation testing, Aviation equipment reporting, Gray Eagle and aviation modernization context
Aviation operational-test evidence informs acquisition confidence, modernization risk, fielding decisions, and sustainment planning.
AVTD connects aviation systems to operational environments and Soldier/crew feedback.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific AVTD assignment.
Sources: FY 2027 Army RDT&E Budget Activity 6 Justification Book, Extended Range Gray Eagle version follow-on tests complete, Joel Klemmer Executive Biography - June 2026
Maneuver Test Directorate (MTD)
OTC maneuver test directorate · Evidence strength: BACKGROUND
MTD is part of the OTC directorate structure supporting operational tests for maneuver warfighting systems and Soldier-centered equipment contexts.
MTD is listed in official Army budget justification material as one of the OTC test directorates at Fort Cavazos.
Location: Fort Cavazos, Texas.
Components: Maneuver system testing, Soldier-centered operational testing, Ground combat equipment context, Acquisition and fielding support
Maneuver test evidence can influence acquisition risk, production confidence, and fielding decisions for ground-combat capabilities.
MTD adds maneuver-unit operational context to OTC evidence.
Contextual through the documented ATEC command environment; this record does not claim a separate Joel-specific MTD assignment.
Sources: FY 2027 Army RDT&E Budget Activity 6 Justification Book, The Operational Test Command supports acquisition and fielding decisions, Joel Klemmer Executive Biography - June 2026
Mission Command Test Directorate (MCTD)
OTC mission-command and networked systems test directorate · Evidence strength: BACKGROUND
MCTD tests mission-command and net-centric systems that process and transmit voice, data, messaging, video, and command information across Army networks.
MCTD is listed in official Army budget justification material as one of the OTC test directorates at Fort Cavazos.
Location: Fort Cavazos, Texas.
Components: Mission command testing, Command Post Computing Environment, Tactical networks, Voice, data, messaging, and video systems
Mission-command test evidence can influence acquisition confidence for networked command systems, interoperability, usability, and fielding readiness.
MCTD links tactical network systems to operational test events and user feedback.
Contextual through the documented ATEC command environment and separate defense communications context; this record does not claim a separate Joel-specific MCTD assignment.
Sources: FY 2027 Army RDT&E Budget Activity 6 Justification Book, Army, partner nations test latest Command Post Software at Joint Warfighting Assessment, Joel Klemmer Executive Biography - June 2026
Maneuver Support and Sustainment Test Directorate (MS2TD)
OTC maneuver-support and sustainment test directorate · Evidence strength: BACKGROUND
MS2TD conducts operational testing for maneuver-support, sustainment, logistics, chemical, transportation, military police, quartermaster, ordnance, and medical service system contexts.
MS2TD is listed in official Army budget justification material as one of the OTC test directorates at Fort Cavazos.
Location: Fort Cavazos, Texas.
Components: Maneuver support testing, Sustainment system testing, Logistics and tactical vehicle test context, Bundled operational testing
MS2TD test evidence can reduce acquisition risk and resource burden while informing logistics, sustainment, tactical vehicle, and support-system fielding decisions.
MS2TD connects support and sustainment equipment to realistic operational test environments.
Contextual through the documented ATEC command environment and Joel-specific procurement/logistics biography evidence; this record does not claim a separate Joel-specific MS2TD assignment.
Sources: FY 2027 Army RDT&E Budget Activity 6 Justification Book, The Operational Test Command supports acquisition and fielding decisions, Bundled Army equipment system testing reduces cost, burdens on test units, Joel Klemmer Executive Biography - June 2026