PSC Code H391 covers inspection and laboratory services specifically related to fuels, lubricants, oils, and waxes. This classification includes commercial testing and quality assurance services designed to verify the composition, purity, and performance characteristics of these materials. Government agencies utilize this PSC to ensure that fuels and related products meet stringent regulatory and operational standards, which is critical for maintaining the efficiency and safety of government vehicles, machinery, and equipment. The services under this code exclude medical and dental laboratory services, focusing solely on analytical and inspection tasks for industrial fluids and waxes. Contractors providing services under H391 typically conduct tests such as viscosity measurements, contamination analysis, and chemical composition verification.

Includes for PSC H391

This PSC code covers the following products and services:

Includes: Commercial Testing and Laboratory Services

Excludes for PSC H391

This PSC code does NOT cover the following:

Excludes: Medical and Dental Laboratory Services

Typical Buyers & Agencies for PSC H391

Typical buyers for PSC H391 include federal agencies with significant operational fleets and infrastructure needs, such as the Department of Defense, Department of Energy, and the General Services Administration. These agencies require rigorous testing to ensure the reliability and safety of fuels and lubricants used in vehicles, aircraft, and heavy equipment. Additionally, agencies involved in energy production or environmental monitoring may procure these services to verify compliance with environmental standards and optimize fuel efficiency. The need for consistent quality control drives ongoing demand for inspection and laboratory services covered under this PSC.

Common Contract Types for PSC H391

Contracts awarded under PSC H391 often include firm-fixed-price and cost-reimbursement types, depending on the scope and complexity of the testing services required. Small business set-asides and competitive procurements are common, especially for routine inspection and testing services. Task orders under IDIQ (Indefinite Delivery Indefinite Quantity) contracts are also frequently used to provide flexibility in ordering services as needed. Government agencies typically use this PSC for both one-time testing projects and ongoing quality assurance programs, emphasizing compliance with industry and federal standards.

Plain-Language Breakdown for PSC H391

Covers commercial inspection and laboratory testing services for fuels, lubricants, oils, and waxes.
Used primarily by federal agencies with operational fleets and energy infrastructure needs.
Includes quality assurance and performance verification to meet regulatory and operational standards.
Excludes medical and dental laboratory services, focusing on industrial and commercial materials.
Common contract types include firm-fixed-price, cost-reimbursement, and IDIQ task orders.
Often associated with NAICS codes 541380, 541690, and 541712 for laboratory and consulting services.

Related Categories for PSC H391

Other categories at the same level as H391

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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