PSC N055

Overview

The Product Service Code (PSC) system is a governmentwide taxonomy that classifies what the federal government buys. PSCs are used in award reporting systems such as FPDS and SAM to standardize procurement descriptions, improve spend tracking, and support analysis and category management. The PSC Manual (acquisition.gov) maintains the current code list, category definitions, and policy guidance for PSC assignment and reporting. ¹

PSC N055 — INSTALLATION OF EQUIPMENT- LUMBER, MILLWORK, PLYWOOD, AND VENEER — is a service-category PSC under Category N (Installation of Equipment). It is intended for award reporting when the predominant contract purpose is installation of lumber-related equipment, assemblies, or paneling (for example, built-in millwork, laminated or veneered panel installations). Use of N055 supports consistent spend classification for installation-focused scopes. ¹

• See also on G2X:
  • G2X — PSC N055 overview
  • G2X — PSC J055 (maintenance of lumber/millwork/plywood/veneer)
  • G2X — PSC 5510 (product: Lumber and Related Basic Wood Materials)

What this PSC covers

• Installation of lumber-related equipment and assemblies. ¹
• Installation of millwork components (built-in cabinetry, trim integrated into structures). ¹
• Installation of plywood panels and veneered panels (site-installed panel systems, shop-fabricated panels set in place). ¹
• On-site carpentry and finish work directly tied to equipment or assembly installation. ¹
• Service-type reporting where installation is the predominant contract purpose by value. ¹
• Detailed inclusions/exclusions for N055: Not specified by official sources. ¹

Related NAICS and PSC codes

Type | Code | Descriptor

• | - | - PSC | J055 | Maintenance, Repair, and Rebuilding of Equipment- Lumber, Millwork, Plywood, and Veneer. ¹ PSC | K055 | Modification of Equipment- Lumber, Millwork, Plywood, and Veneer. ¹ PSC | 5510 | Lumber and Related Basic Wood Materials (product PSC). ¹ PSC | 5520 | Millwork (product PSC). ¹

Source: PSC Manual (group and service listings). ¹

FPDS reporting and coding guidance

FPDS captures the PSC in data element 8A; contracting officers must select the PSC that best represents the predominant product or service procured on the award. When multiple items or services appear, the PSC should reflect the greatest contract value. Guidance on PSC selection and FPDS reporting behavior is provided in FPDS documentation and the PSC Manual. ²

Frequently asked questions

• Q: When should N055 be selected on an FPDS record?
  A: Select N055 when installation of lumber, millwork, plywood, or veneered assemblies is the primary service by dollar value. If installation labor drives the predominant contract purpose, record the installation PSC rather than a product PSC. ²

• Q: Are product PSCs used with N055 for mixed procurements?
  A: If the contract primarily acquires a product (for example, 5510 for lumber or 5520 for millwork) and installation is incidental, use the product PSC. Choose the PSC that represents the greatest contract value. ¹

• Q: Can modification or maintenance PSCs be used for follow-on work?
  A: Yes. For modification scopes use K055 and for maintenance/repair use J055 when those efforts constitute the primary work. The contracting officer must report the PSC matching the primary effort. ¹

Useful resources

• G2X — PSC N055 overview.
• PSC Manual (Product and Service Code Manual, April 2025 edition). ¹
• FPDS glossary / Product or Service Code (element 8A) guidance. ²

References

1. Product and Service Code (PSC) Manual, April 2025 edition, Acquisition.gov — PSC Manual (includes Category N and listings for N055, related service and product PSCs). https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf

2. FPDS glossary / Product or Service Code (definition and FPDS reporting guidance). https://www.fpds.gov/help_V1_1/Glossary.htm