PSC S111

Overview

The Product Service Code (PSC) system is a standardized federal taxonomy that identifies what the government is buying by assigning four‑character codes to goods and services. PSCs are the reporting keys used in federal procurement databases (notably FPDS) and are maintained through the PSC Manual published on Acquisition.gov; the manual and associated files govern activation, end dates, and category alignment. ¹

Per the official PSC Manual, PSC S111 is listed under Category S1 (Utilities) as "Utilities‑ Gas." The manual provides the code label and placement within the utilities category; specific inclusions, exclusions, or detailed line‑item examples for S111 are not enumerated in the narrative; the manual’s spreadsheet files are the primary authoritative files for activation and category placement. ¹

See also on G2X:

• PSC S111 — G2X overview
• PSC S112
• PSC S114

What this PSC covers

• Natural gas utility provision — Not specified by official sources ¹.
• Gas distribution and delivery services — Not specified by official sources ¹.
• Pipeline transport of gas (bulk delivery) — Not specified by official sources ¹.
• Gas metering and measurement services — Not specified by official sources ¹.
• Bulk gas procurement and supply contracts — Not specified by official sources ¹.
• Other gas utility services — Not specified by official sources ¹.

Related NAICS and PSC codes

No authoritative NAICS-to-PSC crosswalk entries for PSC S111 are published in the PSC Manual narrative that define single-code NAICS mappings; the manual publishes governmentwide spreadsheets for PSC data but does not codify a single definitive NAICS crosswalk entry for S111 in text. Not specified by official sources ¹.

Reporting and FPDS use

FPDS requires a Product or Service Code entry (data element 8A) for every reported contract action; the PSC selected should represent the predominant product or service of the award. When reported, S111 is used to identify gas utility purchases in FPDS. The FPDS glossary and FPDS‑NG data dictionary describe element 8A and the requirement to use active PSCs from the PSC Manual. ²

Frequently asked questions

• How must S111 be recorded in FPDS?
  Enter the Product or Service Code in FPDS element 8A using an active PSC from the PSC Manual; select the code that best represents the predominant product or service on the award. See FPDS help for element 8A guidance. ²

• Does the PSC Manual list inclusions or exclusions for S111?
  The PSC Manual lists S111 as "Utilities‑ Gas" under Category S1 but does not provide a detailed narrative list of inclusions/exclusions for the code; the manual’s spreadsheets are the primary administrative files. ¹

• When should an acquisition use S111 versus a construction or maintenance PSC?
  Select the PSC that identifies the contract’s predominant product or service. If the award’s primary purpose is gas utility supply or delivery, S111 is appropriate; construction, repair, or facilities maintenance require their respective PSC families per FPDS element‑8A rules. ¹

• Are agency‑level spending breakdowns for S111 available in the PSC Manual?
  The PSC Manual provides code definitions and administrative guidance but does not publish agency‑level spend tables; FPDS and agency dashboards are the sources for obligation‑level reporting. ¹

Useful resources

• G2X — PSC S111
• PSC Manual (Product and Service Code Manual, April 2025 PDF) ¹
• FPDS glossary and element guidance (Product or Service Code / FPDS element 8A) ²
• FPDS‑NG Data Dictionary — Product or Service Code (element 8A) ³

References

1. Product and Service Code Manual (PSC Manual, April 2025 PDF). Acquisition.gov. https://www.acquisition.gov/content/psc-manual-april-2025.pdf

2. FPDS help — Glossary (Product or Service Code). FPDS. https://www.fpds.gov/help/Glossary.htm

3. V1.4 FPDS‑NG Data Dictionary — Product_or_Service_Code (element 8A). FPDS. https://www.fpds.gov/wiki/index.php/V1.4_FPDS-NG_Data_Dictionary