3B D (2026.10.20) USDA ADP Room and Wiring Guidelines v3

Infrastructure Operations Division

ADP and Wiring Guidelines
Version 3.0

Date Published: November 3, 2023

ADP and Wiring Guidelines

CEC-IOD

ADP and Wiring Guidelines

CEC-IOD

ADP and Wiring Guidelines

Introduction
Updates to two Department Regulations (DRs), DR 3300-001-G and 3300-001-K, supersede the outdated guidance in DR 3902-001, “Service Center Technology Modernization Project (SCTMP) Wiring/Cabling Specifications for Service Center Agencies’ (SCA) Computer Rooms.” As a result, 3902-001 has been canceled and should no longer be used. Though it is canceled, it did have some information that was still useful and applicable. Therefore, the Office of the Chief Information Officer’s Client Experience Center (OCIO-CEC) has taken that information and documented it in these guidelines to help supplement the references below.

References
DR 3300-001-G, “Sharing of Telecommunications Resources” DR 3300-001-K, “Installation of Telecommunications Cables in Federal Buildings” Departmental Manual (DM) 3510-001, “Physical Security Standards for Information Technology (IT) Restricted Space”
“CEC Space and ADP Room Guidelines” Available from the OCIO-CEC-Business Services Division (BSD)
Technical Support Division (TSD) Site Moves Standard Operating Procedure (SOP)

Scope
It is expected that with End User Consolidation (EUC) and the award of the new Enterprise Infrastructure Solutions (EIS) contract, there will be more formal guidance forthcoming on facility and information technology services consolidation. However, until then, these guidelines should be used to assist with the wiring/cabling needs for offices.

Responsibilities
The OCIO-CEC has the authority and responsibility for oversight of the office Automated Data Processing (ADP) rooms and cabling. They are responsible for providing approval of all cabling plans. The Mission Area leasing agent is responsible for including all applicable requirements and standards in solicitations. Questions on these guidelines can be directed to the OCIO-CEC.

Dedicated Electrical Circuits and Outlets for ADP Equipment ADP Room and Demarcation Point Circuits: Provide and install dedicated electrical circuits with isolated grounds in the computer room. Dedicated circuits must be 110 volt, 20-amp standard three-prong circuits with true earth ground terminated into orange or other uniquely marked

CEC-IOD

ADP and Wiring Guidelines
(computer use only) duplex outlets. Provide and install duplex outlets for each dedicated electrical circuit in the computer room and any distribution closets. One dedicated outlet for