PSC N035

PSC N035 — INSTALLATION OF EQUIPMENT‑ SERVICE AND TRADE EQUIPMENT

Overview

The Product Service Code (PSC) system is the federal government’s standardized taxonomy for categorizing goods and services in procurement records. PSCs are used in contracting systems such as the Federal Procurement Data System (FPDS) and SAM; the PSC Manual on Acquisition.gov documents the PSC structure, maintenance processes, and assignment rules that contracting officers and data stewards follow for consistent reporting and spend analysis.¹

PSC N035 — INSTALLATION OF EQUIPMENT‑ SERVICE AND TRADE EQUIPMENT — is the PSC label applied to contract actions whose primary effort is installation of service and trade equipment. The monthly PSC list published by the PSC Manual contains the formal code and descriptor used for award reporting; the published PSC list file enumerates active PSCs and is the authoritative list for coding and updates.²

• See also on G2X:
  • G2X — PSC N035 overview
  • G2X — PSC N045
  • G2X — PSC W035

What this PSC covers

• On‑site installation of service and trade equipment, including setting, anchoring, and securing units to building structure or foundations.
• Positioning, alignment, anchorage work, and attachment hardware required to place equipment in final service location.
• Connections to building utilities, mechanical systems, and required feeders to make equipment operational (electrical, gas, vacuum, compressed air, as applicable).
• Final adjustments, alignment, calibration, and functional testing to verify operation to agreed standards and specifications.
• Stand‑alone installation contracts or discrete installation tasks within larger projects where installation is the primary deliverable.
• Not specified by official sources: specific exclusions, item‑level lists, or mandatory NAICS pairings for this PSC — consult agency coding guidance and the PSC list file for current descriptor text and scope clarifications.²

Related NAICS and PSC codes

The PSC Manual and monthly PSC list identify PSC descriptors but do not publish a single, mandatory NAICS-to-PSC master crosswalk for every PSC; agencies commonly map PSCs to NAICS codes during acquisition planning based on the principal nature of work and the solicitation’s scope. For authoritative direction on PSC descriptors and the published PSC list, consult the PSC Manual and the current PSC list file.¹

How agencies use PSCs in award reporting

Agencies assign a PSC to each FPDS award that best reflects the primary product or service procured; PSC labels such as N035 enable consistent spend categorization, commodity analytics, and category management across federal agencies. The PSC Manual defines procedures for assigning, changing, and maintaining PSCs; contracting officers and data stewards should follow acquisition‑system guidance when selecting the PSC that represents the award’s primary purpose.¹

Frequently asked questions

• Q: When should an acquisition use PSC N035 rather than a maintenance PSC?
  A: Use PSC N035 when the primary requirement is installation or reinstallation of service or trade equipment (new placement, repositioning, or initial hookup), not routine preventative maintenance, repair, or overhaul. Agencies evaluate the solicitation’s primary purpose to select the appropriate PSC.²

• Q: Does N035 include work on HVAC, plumbing, or similar building subsystems?
  A: The descriptor covers installation of service and trade equipment broadly; specific subsystems may be reported under more specific PSCs when they better describe the primary procurement. Review the PSC list and agency coding rules to determine the most accurate PSC.²

• Q: How should contracting officers coordinate PSC and NAICS selection?
  A: PSCs and NAICS serve different reporting purposes: PSCs categorize the product/service procured, while NAICS identifies the industry of the principal work. Contracting officers should select NAICS based on the solicitation’s principal activity and choose the PSC that best matches the primary deliverable. Not all PSCs have a single mandatory NAICS pairing.¹

• Q: Where can I confirm the current official descriptor for PSC N035?
  A: Confirm the official, current PSC descriptor and the active PSC list on the Acquisition.gov PSC Manual pages and the monthly PSC list file published by the PSC program office. The PSC list file contains the published codes and descriptor text used for reporting.²

Useful resources

• G2X — PSC N035 (internal link)
• PSC Manual — Product and Service Code Manual (Acquisition.gov)¹
• PSC list (monthly download): PSC April 2025 (Acquisition.gov PSC list file)²

References

1. https://www.acquisition.gov/psc-manual
2. https://www.acquisition.gov/content/psc-april-2025.xlsx