PSC Code H399, Inspection and Laboratory Services (except medical/dental): Miscellaneous, encompasses a broad range of commercial testing and laboratory services used by federal agencies to ensure quality, compliance, and safety across various sectors. This code covers miscellaneous inspection and testing services that do not fall under medical or dental laboratory categories, offering agencies the ability to procure specialized evaluations, analyses, and certifications for materials, products, and environmental conditions. Agencies utilize this PSC to verify that products and services meet contractual and regulatory requirements, thereby mitigating risks and ensuring operational integrity.

Includes for PSC H399

This PSC code covers the following products and services:

Includes: Commercial Testing and Laboratory Services

Excludes for PSC H399

This PSC code does NOT cover the following:

Excludes: Medical and Dental Laboratory Services

Typical Buyers & Agencies for PSC H399

Government agencies such as the Department of Defense, Department of Transportation, Environmental Protection Agency, and General Services Administration commonly purchase services under PSC H399. These agencies require miscellaneous inspection and commercial laboratory testing services to support mission-critical activities, including material verification, safety inspections, environmental assessments, and quality control measures. Contracting officers leverage this PSC to source specialized technical expertise that supports regulatory compliance and operational readiness across diverse federal programs.

Common Contract Types for PSC H399

Contracts awarded under PSC H399 typically include firm-fixed-price, cost-reimbursement, and time-and-materials agreements depending on the complexity and duration of the inspection or testing services. Procurement methods may range from simplified acquisitions to competitive full and open solicitations. This PSC is commonly used for task orders or delivery orders under indefinite delivery contracts, enabling agencies to quickly access inspection and laboratory capabilities as needed for quality assurance and compliance.

Plain-Language Breakdown for PSC H399

Covers miscellaneous commercial inspection and laboratory testing services excluding medical and dental.
Used by federal agencies for quality assurance, compliance, and safety verification.
Common buyers include DoD, EPA, DOT, and GSA for diverse inspection needs.
Contracts range from firm-fixed-price to cost-reimbursement and time-and-materials.
Often awarded as task or delivery orders under indefinite delivery contracts.
Closely related to NAICS codes 541380, 541620, and 541690 for technical expertise.

Related Categories for PSC H399

Other categories at the same level as H399

H310 INSPECTION- WEAPONS

Inspection and Laboratory Services (except medical/dental): Weapons

H311 INSPECTION- NUCLEAR ORDNANCE

Inspection and Laboratory Services (except medical/dental): Nuclear Ordnance

H312 INSPECTION- FIRE CONTROL EQUIPMENT

Inspection and Laboratory Services (except medical/dental): Fire Control Equipment

H313 INSPECTION- AMMUNITION AND EXPLOSIVES

Inspection and Laboratory Services (except medical/dental): Ammunition and Explosives

H314 INSPECTION- GUIDED MISSILES

Inspection and Laboratory Services (except medical/dental): Guided Missiles

H315 INSPECTION- AIRCRAFT AND AIRFRAME STRUCTURAL COMPONENTS

Inspection and Laboratory Services (except medical/dental): Aircraft and Airframe Structural Components

H316 INSPECTION- AIRCRAFT COMPONENTS AND ACCESSORIES

Inspection and Laboratory Services (except medical/dental): Aircraft Components and Accessories

H317 INSPECTION- AIRCRAFT LAUNCHING, LANDING, AND GROUND HANDLING EQUIPMENT

Inspection and Laboratory Services (except medical/dental): Aircraft Launching, Landing, and Ground Handling Equipment Excludes: Medical and Dental Laboratory Services

H318 INSPECTION- SPACE VEHICLES

Inspection and Laboratory Services (except medical/dental): Space Vehicles

H319 INSPECTION- SHIPS, SMALL CRAFT, PONTOONS, AND FLOATING DOCKS

Inspection and Laboratory Services (except medical/dental): Ships, Small Craft, Pontoons, and Floating Docks

H320 INSPECTION- SHIP AND MARINE EQUIPMENT

Inspection and Laboratory Services (except medical/dental): Ship and Marine Equipment

H322 INSPECTION- RAILWAY EQUIPMENT

Inspection and Laboratory Services (except medical/dental): Railway Equipment

H323 INSPECTION- GROUND EFFECT VEHICLES, MOTOR VEHICLES, TRAILERS, AND CYCLES

Inspection and Laboratory Services (except medical/dental): Ground Effect Vehicles, Motor Vehicles, Trailers, and Cycles

H324 INSPECTION- TRACTORS

Inspection and Laboratory Services (except medical/dental): Tractors

H325 INSPECTION- VEHICULAR EQUIPMENT COMPONENTS

Inspection and Laboratory Services (except medical/dental): Vehicular Equipment Components

H326 INSPECTION- TIRES AND TUBES

Inspection and Laboratory Services (except medical/dental): Tires and Tubes

H328 INSPECTION- ENGINES, TURBINES, AND COMPONENTS

Inspection and Laboratory Services (except medical/dental): Engines, Turbines, and Components

H329 INSPECTION- ENGINE ACCESSORIES

Inspection and Laboratory Services (except medical/dental): Engine Accessories

H330 INSPECTION- MECHANICAL POWER TRANSMISSION EQUIPMENT

Inspection and Laboratory Services (except medical/dental): Mechanical Power Transmission Equipment

H331 INSPECTION- BEARINGS

Inspection and Laboratory Services (except medical/dental): Bearings

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