PSC Z1KC

Overview

The Product and Service Code (PSC) system standardizes how the U.S. federal government classifies products and services procured across agencies, supporting consistent reporting in FPDS/SAM and centralized maintenance via the PSC Manual on acquisition.gov. PSCs identify “what” was procured so agencies, analysts, and program offices can track spending, perform category-level reporting, and drive portfolio-level acquisition decisions. The PSC Manual groups codes by category (goods, services, construction, leases, etc.) and supplies the official code list and titles; the manual generally supplies placement and titles rather than itemized task-level scope for many specialized service codes. ¹

PSC Z1KC is listed in the PSC Manual as “Maintenance of Mine Fire Control Facilities” under Category Z (maintenance, repair, and alteration of structures/facilities). The manual records the code title and taxonomy placement but does not provide expanded line-item “includes/excludes” language for Z1KC beyond the descriptor. ¹

• See also on G2X:
  • Y1KC
  • Z2KC

What this PSC covers

• Facility maintenance for mine fire-control infrastructure — Not specified by official sources ¹.
• Fire-detection and alarm system servicing for mine control sites — Not specified by official sources ¹.
• Ventilation and gas-monitoring system upkeep (related to mine fire control) — Not specified by official sources ¹.
• Fire-suppression and deluge system maintenance — Not specified by official sources ¹.
• Control-room equipment and electrical-system maintenance for fire-control operations — Not specified by official sources ¹.
• Preventive maintenance, testing, and calibration of mine fire-control instrumentation — Not specified by official sources ¹.

Related NAICS and PSC codes

Type | Code | Descriptor

• | - | - PSC | Y1KC | Construction of Mine Fire Control Facilities PSC | X1KC | Lease/Rental of Mine Fire Control Facilities PSC | Z2KC | Repair or Alteration of Mine Fire Control Facilities PSC | M1KC | Operation of Mine Fire Control Facilities

Note: The PSC Manual groups neighboring codes and code families in its service-code sections (Category Z and related series). ¹

Acquisition context

• Agencies report PSC values in FPDS as data element 8A; the selected PSC should reflect the predominant product or service procured on the contract action, and FPDS validation expects a valid PSC from the PSC Manual. ²

• Category Z in the PSC Manual groups maintenance, repair, and alteration of structures and facilities; Z1KC is the code title used for maintenance of mine fire control facilities within that taxonomy, while other Z-series codes address repair/alteration or operation as distinct categories. The manual provides placement and titles but not itemized task-level inclusions for every specific code. ¹

Frequently asked questions

• Q: How should a contracting officer choose between Z1KC and Z2KC for an action?
  A: Select the PSC that reflects the predominant nature of the work: ongoing maintenance/servicing aligns with Category Z maintenance codes such as Z1KC, while discrete repair or alteration projects typically map to repair/alteration codes such as Z2KC. FPDS element 8A instructions govern reporting. ²

• Q: Does the PSC Manual define specific tasks included under Z1KC?
  A: The PSC Manual supplies the code title “Maintenance of Mine Fire Control Facilities” but does not provide itemized task-level “includes/excludes” for many specialized service codes; agencies should document task definitions in solicitations or statements of work. Not specified by official sources. ¹

• Q: Are NAICS mappings provided for Z1KC in the PSC Manual?
  A: The PSC Manual presents the PSC taxonomy and code list but does not publish a single authoritative NAICS-to-PSC crosswalk for every PSC; NAICS codes are separately recorded in FPDS element 8B and handled at the agency level. Not specified by official sources. ¹

• Q: Where is the PSC recorded for a contract action?
  A: The Product or Service Code is recorded in FPDS as data element 8A; contracting offices must choose a valid PSC from the PSC Manual and report the code that best identifies the product or service procured. ²

Useful resources

• G2X — PSC Z1KC overview
• PSC Manual (Product and Service Code Manual, April 2025 edition), acquisition.gov ¹
• FPDS glossary / data dictionary — Product or Service Code (element 8A), fpds.gov ²

References

1. Product and Service Code Manual (PSC Manual), April 2025 edition, acquisition.gov (official PSC code list and service-code taxonomy). https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf

2. FPDS glossary / data dictionary — Product or Service Code (element 8A), fpds.gov. https://www.fpds.gov/help_V1_1/Glossary.htm