PSC L045

Overview

The Product Service Code (PSC) is a standardized federal taxonomy used across U.S. procurement to categorize supplies and services for contract reporting, spend analysis, and acquisition planning. PSC entries are applied in reporting systems such as FPDS and SAM and are governed by the PSC Manual and related acquisition guidance that inform how agencies classify actions and describe services for reporting and analysis. ¹

PSC L045 is titled Technical Representative- Plumbing, Heating, and Waste Disposal Equipment. The PSC Manual and FPDS active-code resources do not publish line-by-line duty statements for PSCs; instead, the PSC label is used to report and classify procurements where the predominant effort is technical-representative duties for plumbing, heating, or waste-disposal equipment. Not specified by official sources. ²

See also on G2X:

• PSC L045 overview
• PSC K045
• PSC J045

What this PSC covers

• On-site technical oversight and representation for plumbing systems
• Heating-system technical support and configuration verification
• Waste-disposal equipment technical liaison duties
• System performance verification and acceptance checks
• Coordination with maintenance and repair contractors
• Troubleshooting and technical reporting
• Specification interpretation and field implementation support

Specific, authoritative duty-level definitions for L045 are not provided in the PSC Manual. Not specified by official sources. ²

Related NAICS and PSC codes

Official one-to-one crosswalks from L045 to specific NAICS codes or to other PSCs are not published in the PSC Manual or FPDS active-code listings. Agencies commonly select applicable NAICS and PSC codes in solicitation documents and contract reporting but no single authoritative mapping is provided. Not specified by official sources. ²

Typical government contexts for L045

• Technical-representative roles on construction, modernization, or sustainment contracts where the contractor furnishes a qualified representative to oversee plumbing, heating, or waste-disposal equipment performance and acceptance. Not specified at the task-order level by the PSC Manual. ²
• Agencies frequently pair equipment-related PSCs (for installation, maintenance, or modification) with a technical-representative PSC on the same contract when a contractor provides both hardware work and on-site representation. Not specified by a single definitive crosswalk in the PSC Manual. ²

Reporting and data notes

FPDS is the system of record for reporting PSCs on federal contract actions; contracting officers select the PSC that best represents the predominant supplies or services being procured, and agency guidance points users to FPDS for the active PSC list and reporting rules. ³

Frequently asked questions

• Q: Where is the authoritative PSC list maintained?

  • A: The active PSC list for FPDS reporting and assignment is maintained through FPDS and related acquisition guidance (PGI/DFARS/agency guidance point back to FPDS for active codes and use). Use the FPDS reference resources when assigning PSCs. ¹

• Q: Does L045 contain a full task-level job description?

  • A: No. PSC labels classify the predominant supplies or services; task-level duties for a technical representative are defined in the solicitation, statement of work, or task order rather than in the PSC Manual. Not specified by official sources. ²

• Q: How do contracting officers choose L045 versus a maintenance or installation PSC?

  • A: Officers select the PSC that best matches the predominant work or deliverable. If the primary deliverable is an on-site technical representative for plumbing/heating/waste equipment, L045 may be appropriate; otherwise choose the PSC reflecting installation, maintenance, or equipment supply. See FPDS guidance. ³

• Q: Where can I find historical awards coded L045?

  • A: Award records labeled with L045 are available in FPDS and USAspending.gov; users can query those systems to review past procurements, award amounts, and agency usage trends. ³

See also on G2X: PSC L045 overview

Useful resources

• PSC L045 — G2X overview
• PGI Part 204 — Acquisition guidance and administrative reporting (Acquisition.gov) ¹
• PGI 204.71 — Uniform Contract Line Item Numbering System / FPDS PSC guidance (Acquisition.gov) ³
• Acquisition Systems — overview of acquisition tools, including FPDS and reporting references (Acquisition.gov) ²

References

1. PGI Part 204 — ADMINISTRATIVE AND INFORMATION MATTERS, Acquisition.gov. https://www.acquisition.gov/dfarspgi/pgi-part-204-administrative-and-information-matters

2. Acquisition Systems (overview of acquisition tools including FPDS and PSC/NAICS references), Acquisition.gov. https://www.acquisition.gov/Acquisition_Systems

3. PGI 204.71 — UNIFORM CONTRACT LINE ITEM NUMBERING SYSTEM, Acquisition.gov. https://www.acquisition.gov/node/55710/printable/print