PSC H339

Overview

The Product Service Code (PSC) system is the federal taxonomy used to classify products and services acquired by U.S. federal agencies, supporting consistent contracting records, spend analysis, and reporting in systems such as FPDS and SAM. The PSC Manual (GSA) is the authoritative list of PSC entries, their “includes” and “excludes,” and guidance on use. ¹

PSC H339 is titled "Inspection- Materials Handling Equipment" and is the PSC that contracting offices report when the predominant service delivered is inspection, testing, or laboratory work specifically tied to materials-handling equipment and associated components. The official entry identifies commercial testing and laboratory services for materials-handling equipment as included and excludes medical and dental laboratory services. ¹

• G2X — PSC H339 overview: https://app.g2xchange.com/psc/H339
• G2X — PSC J039 overview: https://app.g2xchange.com/psc/J039
• G2X — PSC H340 overview: https://app.g2xchange.com/psc/H340

What this PSC covers

• Inspection and testing services for hoists, winches, and cranes.
• Inspection and testing for forklifts and self-propelled warehouse trucks.
• Inspection of conveyors, feeders, and material-handling conveyor systems.
• Inspection of rigging, slings, hooks, and attachments used in material handling.
• Commercial testing or laboratory services performed to verify equipment safety or conformity.
• Excludes medical and dental laboratory services. ¹

Related NAICS and PSC codes

Type	Code	Descriptor
PSC	J039	Maintenance, Repair, and Rebuilding of Equipment — Materials Handling Equipment
PSC	H340	Inspection — Rope, Cable, Chain, and Fittings
PSC	H939	Other Quality Control, Testing, and Inspection — Materials Handling Equipment

(Each related PSC above appears in the PSC Manual within the materials-handling service group.) ¹

How H339 is reported and used in practice

Agencies report PSCs in FPDS using the PSC data element (data element 8A). Selecting the correct PSC should reflect the predominant product or service being purchased for the contract action; when inspection or testing of materials-handling equipment is the primary deliverable, contracting officers generally report H339 in FPDS. ²

Agencies commonly pair PSC reporting with an appropriate NAICS code that describes the business function being procured; however, the PSC Manual does not prescribe a single mandatory NAICS crosswalk for H339. Not specified by official sources. ¹

Frequently asked questions

• Q: What exactly does the PSC Manual say H339 “includes”?
  A: The PSC Manual lists H339 as including "Commercial Testing and Laboratory Services" in the inspection service grouping, indicating commercially provided inspection/testing activities for materials-handling equipment. ¹

• Q: Are medical or dental laboratory inspections covered by H339?
  A: No. The manual explicitly excludes medical and dental laboratory services from H339; those services are reported under other PSCs appropriate to medical/dental laboratory functions. ¹

• Q: Which PSC should be used for maintenance versus inspection of materials-handling equipment?
  A: Use maintenance/repair PSCs (for example, J039) when repair or rebuilding is the primary action; use H339 when inspection/testing is the predominant service. ¹

• Q: Is there a required NAICS for solicitations that use H339?
  A: The PSC Manual does not mandate a specific NAICS mapping for H339; agencies select NAICS codes that best describe the commercial activity being procured. Not specified by official sources. ¹

Useful resources

• G2X — PSC H339 overview (unnumbered): https://app.g2xchange.com/psc/H339
• PSC Manual (official): PSC Manual April 2025 (Product and Service Codes Manual). ¹
• FPDS help — FPDS documentation and data-element guidance (data element 8A and PSC reporting). ²

References

1. PSC Manual April 2025 (Product and Service Codes Manual), General Services Administration. https://www.acquisition.gov/content/psc-manual-april-2025.pdf
2. FPDS Help — Federal Procurement Data System help and documentation. https://www.fpds.gov/help/index.jsp