PSC C1KD

Overview

The Product Service Code (PSC) system categorizes the goods and services that the U.S. government buys, enabling consistent classification for reporting and analysis across procurement systems. The PSC Manual governs the taxonomy and instructs how agencies record PSCs in the Federal Procurement Data System (FPDS) for each contract action. ¹

PSC C1KD is defined as “Architect and Engineering-Construction: Mine Subsidence Control Facilities.” It is used when the predominant requirement is architect‑engineer (A‑E) services in support of constructing mine subsidence control facilities. Related lifecycle codes include construction under Y1KD and maintenance/repair/alteration under Z1KD. ¹

What this PSC covers

• A‑E services tied to the construction of mine subsidence control facilities (design‑focused services for this facility type). ¹
• Preparation of construction documents (e.g., plans and specifications) when the primary requirement is A‑E‑construction for subsidence control facilities. ¹
• Construction‑phase A‑E services logically required for this facility type (e.g., reviews, consultations) when performed under A‑E procedures. ³
• Use when A‑E services are the predominant need; use Y1KD if the predominant need is construction performance. ¹
• Use Z1KD for maintenance, repair, or alteration of existing subsidence control facilities. ¹
• Adjacent conservation and development A‑E facility subtypes include mine fire control (C1KC) and surface mine reclamation (C1KE). ¹

Related NAICS and PSC codes

Source: PSC Manual, Category C1/Y1/Z1 entries. ¹

When to use C1KD vs. Y1KD vs. Z1KD

• Select C1KD when the procurement’s dominant purpose is A‑E services for mine subsidence control facility construction (e.g., design, specifications, A‑E construction‑phase services). ¹
• Select Y1KD when the dominant purpose is to perform the construction of such facilities. ¹
• Select Z1KD when the dominant purpose is maintenance, repair, or alteration of existing facilities. ¹

FPDS reporting and A‑E procedures

• PSC is entered in FPDS as data element 8A to reflect the predominant product or service for each contract action. ¹
• When acquiring A‑E services, agencies use Brooks Act qualifications‑based selection procedures under FAR Subpart 36.6 (public announcement, qualifications evaluation, and negotiation with the most qualified firm). ³

Frequently asked questions

• What work belongs under PSC C1KD?
  A‑E services in support of constructing mine subsidence control facilities, such as preparing design documents and providing A‑E construction‑phase services when those services are the predominant requirement. Related lifecycle codes are Y1KD for construction and Z1KD for maintenance. ¹

• How is selection and award handled for C1KD requirements?
  A‑E acquisitions follow FAR Subpart 36.6’s qualifications‑based selection: publicly announce the requirement, evaluate qualifications, and negotiate with the most qualified firm at a fair and reasonable price, rather than using price‑driven source selection. ³

• When should Y1KD or Z1KD be used instead of C1KD?
  Use Y1KD if the predominant requirement is construction. Use Z1KD if the predominant requirement is maintenance, repair, or alteration of existing facilities. ¹

• Are there official NAICS pairings published for C1KD?
  Not specified by official sources ².

Useful resources

• G2X — PSC C1KD overview: https://app.g2xchange.com/psc/C1KD
• Acquisition.gov — PSC Manual (current landing page). ²
• Acquisition.gov — PSC Manual, April 2025 Edition (FY 2025). ¹
• FAR Subpart 36.6 — Architect‑Engineer Services. ³

References

1. Acquisition.gov. PSC Manual April 2025 (Product and Service Codes Manual), effective April 2025. https://www.acquisition.gov/content/psc-manual-april-2025.pdf
2. Acquisition.gov. Product and Service Code Manual — index/landing page. https://www.acquisition.gov/psc-manual
3. Acquisition.gov. FAR Subpart 36.6 — Architect‑Engineer Services. https://www.acquisition.gov/far/subpart-36.6