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UFC 3-550-04 01 March 2024 Change 1, 6 January 2026 UNIFIED FACILITIES CRITERIA (UFC) APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED RESILIENT INSTALLATION MICROGRID DESIGN UFC 3-550-04 01 March 2024 Change 1, 6 January 2026 This Page Intentionally Left Blank UFC 3-550-04 01 March 2024 Change 1, 6 January 2026 UNIFIED FACILITIES CRITERIA (UFC) RESILIENT INSTALLATION MICROGRID DESIGN Any copyrighted material included in this UFC is identified at its point of use. Use of the copyrighted material apart from this UFC must have the permission of the copyright holder. Indicate the Military Department Preparing Activity responsible for the document. U.S. ARMY CORPS OF ENGINEERS NAVAL FACILITIES ENGINEERING SYSTEMS COMMAND (Preparing Activity) AIR FORCE CIVIL ENGINEER CENTER Record of Changes
oluntary Protection Program G-2 DEFINITION OF TERMS. Defense-in-depth: Information security strategy integrating people, technology, and operations capabilities to establish variable barriers across multiple layers and missions of the organization. (https://csrc.nist.gov/glossary/term/defense_in_depth). UFC 3-550-04 01 March 2024 Change 1, 6 January 2026 72 This Page Intentionally Left Blank UFC 3-550-04 01 March 2024 Change 1, 6 January 2026 73 REFERENCES H-1 GOVERNMENT STANDARDS FEDERAL 10 U.S.C. 2911, Energy Performance Goals and Master Plan for the Department of Defense EO 14057, Catalyzing Clean Energy Industries and Jobs through Federal Sustainability DEPARTMENT OF DEFENSE https://www.wbdg.org/ffc/dod/unified-facilities-criteria-ufc UFC 1-200-01, DoD Building Code UFC 3-410-02, Direc
S COMMAND (Preparing Activity) AIR FORCE CIVIL ENGINEER CENTER Record of Changes (changes are indicated by \1\ ... /1/) Change No. Date Location 1 12/16/25 Spelling and grammar corrections throughout. Paragraph 1-9 applies to system modifications. Table 1-1 adds SMR and drops climate change. Paragraph 2-1 clarifies independent generation sources. Paragraph 3-1 allows AHJ to consider fuel deliveries. Paragraph 4-2.1.6 describes temporary metering. Paragraph 4-4 includes construction sequencing details. Paragraph 6-1.5 adds load control logic for re-sync. Paragraph 6-1.6 adds a note about full system testing. UFC 3-550-04 01 March 2024 Change 1, 6 January 2026 This Page Intentionally Left Blank UFC 3-550-04 01 March 2024 Change 1, 6 January 2026 FOREWORD The Unified Facilities Criteria (UFC)
Interior and Exterior Lighting Systems UFC 3-535-01, Visual Air Navigation Facilities UFC 3-540-01, Engine-Driven Generator Systems for Prime and Standby Power Applications UFC 3-540-08, Utility-Scale Renewable Energy Systems UFC 3-550-01, Exterior Electrical Power Distribution UFC 3-550-04: Installation Microgrid Design CANCELLED UFC 3-501-01 27 November 2024 82 UFC 3-555-01, Aircraft Point-of-Use Power Systems UFC 3-560-01, Operation and Maintenance: Electrical Safety UFC 3-570-01, Cathodic Protection UFC 3-575-01, Lightning and Static Electricity Protection Systems UFC 3-580-01, Telecommunications Interior Infrastructure Planning and Design UFC 3-600-01, Fire Protection Engineering for Facilities UFC 4-010-01, DoD Minimum Antiterrorism Standards for Buildings UFC 4-010-05, SCIF/SAPF Pl
roperly. UFC 3-130-04 16 January 2025 27 CHAPTER 6 ELECTRICAL 6-1 GENERAL. Standard electrical system design criteria are suitable for buildings in Arctic and Subarctic regions because buildings are heated. However, some special consideration must be addressed. Comply with UFC 1-200-01, UFC 3-501-01, and the UFCs and government criteria referenced therein. 6-2 GROUNDING. Comply with UFC 3-501-01; UFC 3-550-01; and UFC 3-130-05, paragraph 11-2. UFC 3- 130-05 paragraphs 11-2 and A-11.2 provide additional information and resources on electrical grounding. 6-3 EXTERIOR LIGHTING AND CONTROLS. Comply with UFC 3-501-01 and UFC 3-550-01. Exterior wiring and lighting must be rated to −40°F (−40°C). Ensure NEC compliant circuit wiring and protection are provided for heat trace cables used for heatin
l Occupancies NFPA 101, Life Safety Code NFPA 701, Standard Methods of Fire Tests for Flame Propagation of Textiles and Films UNIFIED FACILITIES CRITERIA https://www.wbdg.org/ffc/dod/unified-facilities-criteria-ufc UFC 1-200-01, DoD Building Code UFC 1-201-02, Assessment of Existing Facilities for Use in Military Operations UFC 3-301-01, Structural Engineering UFC 3-310-04, Seismic Design of Buildings UFC 3-420-01, Plumbing Systems UFC 3-550-01 Exterior Electrical Power Distribution UFC 3-580-01, Telecommunications Interior Infrastructure Planning and Design UFC 1-201-01 4 March 2022 Change 4, 08 August 2023 98 UFC 4-010-01, DoD Minimum Antiterrorism Standards for Buildings UFC 4-010-06, Cybersecurity of Facility-Related Control Systems JOINT PUBLICATIONS Department of Defense Dictionary o
ance (O&M): Generators 3-550-01, Exterior Electrical Power Distribution 3-580-01, Telecommunications Interior Infrastructure Planning and Design 4-010-01, DoD Minimum Antiterrorism Standards for Buildings 4-010-06, Cybersecurity of Facility-Related Control Systems 4-133-01, Air Traffic Control and Air Operations Facilities 4-141-04, Emergency Operations Center Planning and Design 4-141-10N, Design: Aviation Operation and Support Facilities (replaces MIL-HDBK 1024/1) 4-150-02, Dockside Utilities for Ship Service 4-211-01, Aircraft Maintenance Hangars 4-213-10, Graving Dry Docks 4-510-01, Design: Military Medical Facilities UFC 4-722-01F, Air Force Dining Facilities UFC 4-722-01N, Navy and Marine Corps Dining Facilities( UFC 3-540-01 1 August 2014 Change 4, 16 January 2026 31 4-730-04AN, Mil
2.2 5 CFR 550.311 2.2.1 5 U.S.C. § 7115 2.2.2 5 CFR 550.331 CFC Giving Mobile Application 2.2.3 5 CFR 550.341 DoDI 5035.01 DoDI 5035.05 5 CFR Part 950 Executive Order 12353 Executive Order 12404 79 Federal Register 21581 Campaign, August 3, 2017 2.2.4 5 CFR Part 351 2.2.6 5 CFR 550.361 2.3 5 CFR 550.311(b) 2.3.2 5 CFR 550.371 3.0 – FEDERAL EMPLOYEES HEALTH BENEFITS (FEHB) 3.1 5 U.S.C., Chapter 89 5 CFR Part 890 BAL 15-210 3.2.3 5 U.S.C. § 3402 3.2.3.1.3 5 U.S.C. § 8906(b)(3) 3.2.4.1 BAL 14-210 3.2.4.2 5 U.S.C. § 8906 3.2.5.7 BAL 22-202 3.2.6.1 5 CFR 890.303(e) 3.2.6.3 5 CFR 890.502.b 3.2.6.5.2 FECA Circular No. 09-04 FECA Circular No. 12-05 3.2.6.6.4 5 U.S.C. § 6382 3.2.6.6.6 5 CFR Part 334 3.2.6.6.7 5 U.S.C. § 3582 5 CFR 352.309 3.2.8 5 CFR 892.102 5 CFR 892.205 5 CFR 892, subpart B 2BDo
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