PSC C1GD

Overview

The Product and Service Code (PSC) system is a governmentwide taxonomy that classifies what the U.S. federal government buys, enabling consistent reporting and analysis in the Federal Procurement Data System (FPDS). PSCs are maintained by GSA through the PSC Manual and are applied to contract actions to describe the predominant product or service purchased. ¹

PSC C1GD identifies architect and engineering (A-E) services related to construction of open storage facilities. In practice, this PSC is used when the requirement is for professional A-E services associated with designing or supporting construction of open storage facilities, rather than for the physical construction, repair, or maintenance work itself. ¹

See also on G2X:

• G2X — PSC C1GD overview
• G2X — PSC Y1GD
• G2X — PSC Z1GD

What this PSC covers

• Professional A-E services associated with the design or construction of open storage facilities, including activities defined as A-E in FAR 36.601-4 (e.g., studies, plans, specifications, and construction phase services). ³
• Site investigations, feasibility studies, and conceptual designs for new or expanded open storage facilities as part of A-E services. ³
• Detailed design development, engineering calculations, and preparation of construction documents specifically for open storage facilities. ³
• Value engineering, cost estimating, and constructability reviews performed by registered architects or engineers for open storage facility projects. ³
• Construction phase A-E services (e.g., submittal reviews, inspections, as-built documentation) tied to open storage facilities. ³
• Application of the PSC Manual’s definition: “Architect and Engineering- Construction: Open Storage Facilities” for code C1GD. ¹

Related NAICS and PSC codes

These companion PSCs cover construction, maintenance/repair, and lease actions related to open storage facilities, while C1GD covers A-E services. ¹

Coding and reporting notes

• The PSC Manual directs agencies to select the PSC that reflects the predominant product or service for each action reported in FPDS. Use C1GD when the predominant requirement is A-E services for open storage facilities rather than construction or maintenance. ¹
• For actions that purchase or lease facilities rather than acquire A-E services, consider E1GD (purchase) or X1GD (lease/rental), as applicable. ¹

Contracting approach for architect-engineer services

• A-E services are acquired under FAR Subpart 36.6, which prescribes qualifications-based selection procedures and emphasizes competence and qualifications before price negotiation. ²
• FAR 36.601-4 clarifies that A-E services include studies, investigations, surveying and mapping, conceptual designs, plans and specifications, value engineering, and construction phase services associated with real property. ³

Frequently asked questions

• What does C1GD cover?

  • It covers architect and engineering services for construction related to open storage facilities. This includes professional A-E work necessary to design or support construction of such facilities, distinct from the physical construction itself. ¹

• When should C1GD be used instead of Y1GD?

  • Use C1GD when procuring A-E services; use Y1GD when procuring the construction of open storage facilities. The PSC Manual separates A-E design services (C1) from construction (Y1). ¹

• Are there official NAICS codes mapped specifically to C1GD?

  • Not specified by official sources ¹.

• What types of tasks are typical under A-E services for open storage facilities?

  • Tasks may include site studies, surveying and mapping, development of plans and specifications, value engineering, and construction phase services performed by registered architects or engineers, as outlined in FAR 36.601-4. ³

• Which codes apply to sustainment of existing open storage facilities?

  • Use Z1GD for maintenance and Z2GD for repair or alteration of open storage facilities; C1GD is for A-E services. ¹

Useful resources

• G2X — PSC C1GD overview
• PSC Manual (April 2025 edition) — authoritative definitions and coding instructions
• FAR Subpart 36.6 — Architect-Engineer Services
• FAR 36.601-4 — Implementation; what constitutes A-E services

References

1. Product and Service Code (PSC) Manual, April 2025 Edition (PDF), acquisition.gov. https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf
2. Subpart 36.6 — Architect-Engineer Services, FAR, acquisition.gov. https://www.acquisition.gov/far/subpart-36.6
3. FAR 36.601-4 — Implementation; architect-engineer services definition and examples, acquisition.gov. https://www.acquisition.gov/far/36.601-4