Weapons Engineering

Associate Laboratory Directorate of Weapons Engineering

The Associate Laboratory Directorate of Weapons Engineering (ALDW) integrates the stockpile stewardship program and executes weapons engineering and testing in support of the Laboratory's critical mission. ALDW consists of the 6 Divisions and several Programs Offices.

Engineering Technology and Design
The Engineering Technology and Design Division (E-DO) provides innovative engineering solutions while stewarding and expanding capabilities to develop answers for tomorrow’s evolving threats. E-DO provides diverse R&D solutions and a broad range of capabilities including requirements definition, design, analysis, fabrication, assembly, testing, and evaluation.
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Prototype Fabrication
Prototype Fabrication (PF) is a proud manufacturer and inspector of mechanical components vital to the national security mission.
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Weapon Stockpile Modernization
The Weapon Stockpile Modernization Division (Q-DO) brings system engineering, science, and program management expertise and leverages state-of-the-art simulation and experimental capabilities to roles ranging from basic and applied research and development, component technology conceptualization and maturation, and sub-system and system testing of flight and integrated performance.
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Weapon Verification and Validation Division
The Weapon Verification and Validation Division (V-DO) verifies that weapon designs meet requirements and validates that the designs function as intended, ensuring successful completion of investigations, qualification tests, and evaluations. V Division accomplishes the verification and validation of weapons designs through assembly, non-destructive evaluation, test design and planning, and test execution.
Weapon Systems Engineering
The Weapons System Engineering Division (W-DO) provides the program management and system engineering necessary to sustain the safety, reliability, and security of the legacy nuclear stockpile. The division generates key certification data for annual assessments on the health of certain warheads. This role demands ongoing surveillance of the active stockpile and evaluation of the potential impact of any issues.
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Weapons Engineering Facilities Operations
The Weapons Facilities and Operations Division (WFO) operates, maintains, and constructs infrastructure in direct support of mission-focused research and development efforts. The division ensures readiness in mission execution, operations, and maintenance at over 500 facilities across 23 square miles, including nuclear, accelerator, and high explosives portfolios.
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Office of Design Agency Quality
The Office of Design Agency Quality formally documents quality controls and establishes instructions, materials, and expertise for training, monitoring, assessment, and improvement. The office ensures established organizational procedures align with customer requirements. It also liaises with counter-intelligence threat monitoring, recommends controls, and performs monitoring to detect adversarial subversion of products.
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Science, Technology & Engineering

Lighting the photonics frontier with engineered quantum dots

A new breakthrough paves the way for practical, energy-efficient quantum dot lasers

Science, Technology & Engineering

Enabling precise predictions with proton radiography

Science, Technology & Engineering

New Plutonium Science Laboratory serves critical national security missions

New center prepares for 2026 operations

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Associate Laboratory Directorate of Weapons Engineering

Engineering Technology and Design
The Engineering Technology and Design Division (E-DO) provides innovative engineering solutions while stewarding and expanding capabilities to develop answers for tomorrow’s evolving threats. E-DO provides diverse R&D solutions and a broad range of capabilities including requirements definition, design, analysis, fabrication, assembly, testing, and evaluation.
Learn More
Prototype Fabrication
Prototype Fabrication (PF) is a proud manufacturer and inspector of mechanical components vital to the national security mission.
Learn More
Weapon Stockpile Modernization
The Weapon Stockpile Modernization Division (Q-DO) brings system engineering, science, and program management expertise and leverages state-of-the-art simulation and experimental capabilities to roles ranging from basic and applied research and development, component technology conceptualization and maturation, and sub-system and system testing of flight and integrated performance.
Learn More
Weapon Verification and Validation Division
The Weapon Verification and Validation Division (V-DO) verifies that weapon designs meet requirements and validates that the designs function as intended, ensuring successful completion of investigations, qualification tests, and evaluations. V Division accomplishes the verification and validation of weapons designs through assembly, non-destructive evaluation, test design and planning, and test execution.
Weapon Systems Engineering
The Weapons System Engineering Division (W-DO) provides the program management and system engineering necessary to sustain the safety, reliability, and security of the legacy nuclear stockpile. The division generates key certification data for annual assessments on the health of certain warheads. This role demands ongoing surveillance of the active stockpile and evaluation of the potential impact of any issues.
Explore
Weapons Engineering Facilities Operations
The Weapons Facilities and Operations Division (WFO) operates, maintains, and constructs infrastructure in direct support of mission-focused research and development efforts. The division ensures readiness in mission execution, operations, and maintenance at over 500 facilities across 23 square miles, including nuclear, accelerator, and high explosives portfolios.
Learn More
Office of Design Agency Quality
The Office of Design Agency Quality formally documents quality controls and establishes instructions, materials, and expertise for training, monitoring, assessment, and improvement. The office ensures established organizational procedures align with customer requirements. It also liaises with counter-intelligence threat monitoring, recommends controls, and performs monitoring to detect adversarial subversion of products.
Learn More