PSC L058

Overview

The Product Service Code (PSC) system is a four-character taxonomy used across U.S. federal contracting to classify what is being procured on each contract action reported in FPDS and reflected in SAM. PSCs enable consistent spend analysis, category management, and contract reporting; they are maintained through the PSC Manual and related GSA/FPDS processes. The PSC L058 appears in the PSC Manual within Category L (Technical Representative services) as “Technical Representative—Communication, Detection, and Coherent Radiation Equipment.” The manual provides the code title and category placement but does not supply an itemized statement of work for L058 beyond that classification. ¹

The PSC L058 page on G2X (internal code page) provides a concise label and categorization useful for sourcing and reporting but does not replace agency-specific statements of work or FPDS reporting guidance. See the code page for quick reference. ¹

What this PSC covers

• Technical representative services related to communication equipment (on‑site technical liaison, acceptance testing, or contractor representative duties). ¹
• Technical representative services related to detection equipment, including radar and sensor systems (oversight, acceptance, and field coordination). ¹
• Technical representative services associated with coherent radiation equipment, for example laser and optical systems (engineering coordination, technical acceptance). ¹
• Field‑level equipment acceptance, technical oversight, and supplier/manufacturer liaison activities as implied by the “Technical Representative” category rather than installation or depot maintenance. ¹

Related NAICS and PSC codes

Type | Code | Descriptor

• | -: | - PSC | J058 | MAINT/REPAIR/REBUILD OF COMMUNICATION, DETECTION, AND COHERENT RADIATION EQUIPMENT. ¹ PSC | N058 | INSTALLATION OF COMMUNICATION, DETECTION, AND COHERENT RADIATION EQUIPMENT. ¹

Common contract pairings and usage

• L058 is commonly reported on FPDS awards alongside professional services NAICS (for example, engineering and specialty technical support) when the procurement requires an on‑site technical representative; specific NAICS pairings vary by agency and procurement approach. Examples in contract records include NAICS 541330 (Engineering Services). ²

• Agencies typically select L058 when the predominant requirement is technical representation or contractor technical oversight of fielded systems rather than installation or repair, which are reported under separate PSCs (see related PSCs above). Contracting officers determine the best PSC that describes the predominant procurement. ³

Frequently asked questions

• Q: What is the authoritative source for the L058 definition?
  A: The authoritative source is the Product and Service Code Manual on Acquisition.gov; L058 is listed under Category L (Technical Representative) with the title shown in the manual. ¹

• Q: Does L058 cover installation or repair work?
  A: No. Installation and maintenance/repair are reported under separate PSCs such as N058 (installation) and J058 (maintenance/repair). L058 denotes technical representative activities rather than installation or depot maintenance. ¹

• Q: Which NAICS codes commonly appear with L058 on contracts?
  A: Contract records often pair L058 with professional and engineering NAICS such as 541330 (Engineering Services). NAICS–PSC pairings depend on scope and are not standardized in the PSC Manual. ²

• Q: Where are active PSCs used for reporting entered and validated?
  A: Active PSCs are entered and reported through the Federal Procurement Data System (FPDS); contracting officers select and validate the PSC that best represents the predominant item or service on each award. Agency FPDS procedures and PGI guidance govern reporting practices. ²

Useful resources

• G2X — PSC L058 (internal code page): https://app.g2xchange.com/psc/L058 ¹
• Product and Service Code Manual, Acquisition.gov (PSC Manual). ¹
• Federal Procurement Data System (FPDS) — award reporting and search. ²
• PGI 204.6 — Contract Reporting (FPDS entry guidance), Acquisition.gov. ³

References

1. Product and Service Code Manual, Acquisition.gov — PSC Manual landing and files. https://www.acquisition.gov/psc-manual

2. Federal Procurement Data System (FPDS) — contract reporting and award data. https://www.fpds.gov

3. PGI 204.6 — Contract Reporting (FPDS entry guidance), Acquisition.gov. https://www.acquisition.gov/dfarspgi/pgi-204.6-contract-reporting