PSC C1HB

Overview

The Product Service Code (PSC) is the federal taxonomy for classifying what the U.S. Government buys, enabling consistent reporting in FPDS and award systems such as SAM.gov; the General Services Administration maintains the taxonomy through the PSC Manual. Agencies select a PSC to reflect the predominant product or service procured so spend data can be tracked, analyzed, and compared across the enterprise. ¹

PSC C1HB is defined as “Architect and Engineering- Construction: Government-Owned Government-Operated (GOGO) R&D Facilities.” It sits in Category C1 (Architect and Engineering – Construction) and is used for architect-engineer services tied to construction projects for GOGO research and development facilities. Related lifecycle PSCs include Y1HB (construction), Z1HB (maintenance), and M1HB (operation). ¹

See also on G2X:

• C1HB
• Y1HB
• M1HB

What this PSC covers

• Predesign studies and investigations associated with GOGO R&D facility projects (e.g., surveying, mapping, and related professional A-E services). ²
• Architectural and engineering design development, including plans and specifications for GOGO R&D facilities. ²
• Construction-phase A-E services tied to design delivery, such as submittal reviews and site observations. ²
• Structural, mechanical, electrical, civil, and specialty engineering for real property improvements at GOGO R&D laboratories. ²
• Site and utilities design supporting facility construction and integration with existing infrastructure. ²
• Value engineering, cost estimating, and other incidental professional A-E services integral to facility design. ²

Related NAICS and PSC codes

Descriptors per the PSC Manual. ¹

Lifecycle coding tips for GOGO R&D facilities

• Use C1HB for professional architect-engineer services associated with construction projects (design and related A-E tasks). ¹
• Use Y1HB when procuring the construction itself (build/construct). ¹
• Use Z1HB for maintenance, repair, or alteration of existing GOGO R&D facilities. ¹
• Use M1HB when acquiring operations of GOGO R&D facilities. ¹

Acquisition method for C1HB work

Architect-engineer services are acquired under the Brooks Act qualifications-based selection (QBS) procedures in FAR Subpart 36.6. Selections are based on competence and qualifications, with price negotiated after ranking the most highly qualified firms; statements of work for facility design must address recovered materials and energy/waste considerations where appropriate. ³

Frequently asked questions

• What does PSC C1HB mean in practice?
  C1HB covers architect and engineering services for construction projects involving Government-owned, Government-operated research and development facilities. It resides in Category C1 (A-E – Construction) and signals that the predominant buy is professional A-E services connected to such facility projects. ¹

• How is C1HB different from Y1HB, Z1HB, and M1HB?
  C1HB is for A-E services; Y1HB is for the construction; Z1HB is for maintenance/repair/alteration; M1HB is for operations. Select the code that reflects the predominant scope of the action. ¹

• What tasks can be included under A-E services for C1HB?
  FAR defines architect-engineer services to include professional services associated with research, planning, development, design, construction, alteration, or repair of real property, and incidental services such as studies, surveying, value engineering, and construction-phase support. ²

• Which procurement method applies to C1HB acquisitions?
  Architect-engineer services are procured using qualifications-based selection per FAR Subpart 36.6, emphasizing public announcement, evaluation of qualifications, and negotiation with the most qualified firm at fair and reasonable prices. ³

• Is there an official NAICS mapping for C1HB?
  Not specified by official sources ⁴.

Useful resources

• G2X — C1HB
• Product and Service Codes (PSC) Manual, April 2025 (official definitions and category listings). ¹
• FAR 2.101 Definitions — architect-engineer services. ²
• FAR Subpart 36.6 — Architect-Engineer Services (Brooks Act procedures). ³

References

1. Product and Service Codes (PSC) Manual, April 2025, Acquisition.gov (PDF): https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf
2. FAR 2.101 Definitions, Acquisition.gov: https://www.acquisition.gov/far/2.101
3. FAR Subpart 36.6 — Architect-Engineer Services, Acquisition.gov: https://www.acquisition.gov/far/subpart-36.6
4. PSC Manual landing page (official library), Acquisition.gov: https://www.acquisition.gov/psc-manual