PSC X1KC

Overview

The Product Service Code (PSC) system is the federal government’s standardized taxonomy for classifying what is procured under each contract action reported in FPDS and SAM. PSC codes enable consistent recording, analysis, and reporting of federal spend and are maintained through the PSC Manual and its change-management materials on Acquisition.gov. The PSC Manual groups PSCs by function (for example, facility lease/rental codes) and is the authoritative source for official code names, groupings, and change history. Use of the correct PSC supports accurate spend analytics, statutory reporting, and procurement oversight when contracting officers populate FPDS data element 8A. ¹

The PSC X1KC is listed in the PSC Manual as "Lease/Rental of Mine Fire Control Facilities." This facility-based lease/rental code is intended to identify contract actions predominantly for leasing or renting infrastructure associated with mine fire control; the Manual provides the code name and grouping but does not include a detailed technical specification for this specific code. ¹

What this PSC covers

• Facility leasing for mine fire control infrastructure, where the leased space is principally dedicated to mine-fire functions and support.
• Rental of buildings or structures dedicated to mine fire suppression operations and associated systems.
• Lease of specialized monitoring or control stations housed within leased facilities for mine-fire detection or suppression activities.
• Short- or long-term real property leasing arrangements for spaces whose predominant purpose is mine fire control.
• Supportive space for personnel and equipment engaged in mine fire control activities. ¹

Related NAICS and PSC codes

Not specified by official sources. The PSC Manual lists X1KC in the facility-based lease/rental group but does not publish a single, authoritative NAICS-to-PSC crosswalk for every PSC entry; NAICS mappings for a given lease procurement should be confirmed using NAICS guidance and agency reporting rules. ¹

See also on G2X:

• G2X — PSC X1KC overview
• G2X — PSC X1KD
• G2X — PSC Y1KC

Coding guidance and usage

• Predominant-purpose principle: When multiple items or services appear on a single contract action, FPDS data element 8A (Product or Service Code) should be selected based on the predominant product or service; for leases of facilities whose primary purpose is mine fire control, X1KC is appropriate. ¹
• Changes and versions: PSC codes, activation dates, renumberings, and end dates are tracked in the PSC spreadsheets and appendices published on Acquisition.gov; practitioners should reference the current PSC spreadsheet for authoritative activation/renumbering history. ²

Frequently asked questions

• Q: When should a contracting officer use X1KC instead of a general lease PSC?
  A: Use X1KC when the leased or rented real property is principally dedicated to mine fire control functions and that purpose is the predominant element of the acquisition reported in FPDS data element 8A. If the lease covers mixed-use space where mine-fire functions are not predominant, select the PSC that best reflects the predominant purpose. ¹

• Q: Does the PSC Manual provide technical or performance requirements for facilities coded X1KC?
  A: No. The PSC Manual supplies code names and grouping guidance but does not include technical specifications or contract performance requirements; those requirements must be defined in the solicitation and contractual documents. ¹

• Q: Is there an official NAICS mapping for X1KC for small-business or set-aside determinations?
  A: The PSC Manual does not publish a definitive NAICS-to-PSC mapping for every code. NAICS selections for leases (for example, 531120, 531110) depend on the nature of the real-estate service and should be determined using NAICS guidance and agency rules; the PSC Manual itself does not provide a per-code NAICS crosswalk. ¹

• Q: Where can I confirm if a PSC has been renumbered or end-dated?
  A: Check the current PSC spreadsheet and change-control appendices on Acquisition.gov for activation, renumbering, and end-date history; the published spreadsheet is the authoritative source for PSC change history. ²

Useful resources

• G2X — PSC X1KC page
• PSC Manual (PDF): https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202022.pdf ¹
• PSC April 2025 spreadsheet (current PSC data and activation/end dates): https://www.acquisition.gov/content/psc-april-2025.xlsx ²

References

1. Product and Service Codes (PSC) Manual (PSC Manual April 2022 PDF), Acquisition.gov.
2. PSC April 2025 spreadsheet, Acquisition.gov.