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UFC 3-420-01 is a Unified Facilities Criteria document on Plumbing Systems [UFC 3-420-01 title page].

The current version effective as of 1 April 2021 supersedes the previous UFC 3-420-01 dated 25 October 2004 with Change 10 [UFC 3-420-01 Record of Changes]. The document has been marked CANCELLED in the passages provided [UFC 3-420-01 cover page, multiple citations].

Air Force personnel must design water systems and plumbing in accordance with UFC 3-420-01 [DAFMAN 10-246 para 2.4.4; DAFMAN 32-1067 para 4.2.1], even though the document itself carries a "CANCELLED" designation in these indexed materials. This apparent discrepancy may indicate the document is retained for reference purposes or that the cancellation status requires verification through the official source.

Unofficial — answered from indexed publication text, which may be incomplete or out of date. Your MAJCOM/unit supplement may be stricter. Verify the official PDF before acting or writing a finding.
NFPA standards (cited by reference)
NFPA 58 — cited by DAFMAN 32-1067 · read at NFPA free access ↗
NFPA 30 Flammable and Combustible Liquids Code — cited by DAFMAN 32-1067 · read at NFPA free access ↗
NFPA 54 — cited by DAFMAN 32-1067 · read at NFPA free access ↗

NFPA text is copyrighted — we cite and link the official free-access viewer, never reproduce it.

Show the 8 source passage(s) this answer is built from
UFC 3-420-01 as of 2021-04-01 · official source ↗

UFC 3-420-01 01 April 2021 UNIFIED FACILITIES CRITERIA (UFC) APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED PLUMBING SYSTEMS CANCELLED UFC 3-420-01 01 April 2021 UNIFIED FACILITIES CRITERIA (UFC) PLUMBING SYSTEMS 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 preparing activity beside the Service responsible for preparing the document. U.S. ARMY CORPS OF ENGINEERS NAVAL FACILITIES ENGINEERING COMMAND (Preparing Activity) AIR FORCE CIVIL ENGINEER CENTER Record of Changes (changes are indicated by \1\ ... /1/) Change No. Date Location This UFC supersedes UFC 3-420-01, dated 25 October 2004, with Change 10, dated 26 October 2015. CANCELLED U

UFC 3-420-01 as of 2021-04-01 · official source ↗

ing Systems UFC 3-440-01, Facility-Scale Renewable Energy Systems UFC 3-501-01, Electrical Engineering UFC 3-600-01, Fire Protection Engineering for Facilities UFC 4-010-01, DoD Minimum Antiterrorism Standards for Buildings UFC 4-010-06, Cybersecurity of Facility-Related Control Systems UFC 4-440-01, Warehouses and Storage Facilities UFC 4-510-01, Design: Military Medical Facilities CANCELLED 46 UFC 3-420-01 01 April 2021 UNITED STATES DEPARTMENT OF DEFENSE, UNIFIED FACILITIES GUIDE SPECIFICATIONS (UFGS) http://dod.wbdg.org UFGS 22 00 00, Plumbing, General Purpose UFGS 23 03 00.00 20, Basic Mechanical Materials and Methods UFGS 23 07 00, Thermal Insulation for Mechanical Systems CANCELLED 47 UFC 3-420-01 01 April 2021 APPENDIX C DESIGN GUIDANCE FOR EMERGENCY SHOWER AND EYEWASH STATIONS C-1

UFC 3-420-01 as of 2021-04-01 · official source ↗

erenced standards specify different materials, methods of construction, or other requirements, the most restrictive requirement will govern. In leased facilities where the local jurisdiction controlling the lessor has adopted a different plumbing code, the more restrictive requirement will govern. 1-7 GLOSSARY. Appendix A contains acronyms, abbreviations, and terms. 1-8 REFERENCES. Appendix B contains a list of references used in this document. The publication date of the code or standard is not included in this document. Unless otherwise specified, the most recent edition of the referenced publication applies. CANCELLED UFC 3-420-01 01 April 2021 4 This page intentionally left blank CANCELLED UFC 3-420-01 01 April 2021 5 CHAPTER 2 TECHNICAL CRITERIA Not used. CANCELLED UFC 3-420-01 01 Apr

DAFMAN 10-246 · para 2.4.4 as of 2025-11-03 · View in PDF → · official source ↗

water systems and plumbing systems are appropriately designed and constructed in accordance with Unified Facilities Criteria (UFC) 3-230-01, Water Storage and Distribution; UFC 3-230-03, Water Treatment; UFC 3-420-01, Plumbing Systems, UFC 4- 020-01, DoD Security Engineering Facilities Planning Manual; UFC 4-020-02FA, Security Engineering: Concept Design; UFC 4-020-03FA, Security Engineering: Final Design; and DAFMAN 32-1067, Water and Fuel Systems. 2.4.3. Ensure compliance with applicable drinking water regulatory requirements or standards in coordination with Bioenvironmental Engineering personnel. 2.4.4. Provide engineering studies, design of water distribution systems and treatment plants, and associated system components. 2.4.5. Ensure an effective backflow prevention and cross-connec

DAFMAN 32-1067 · para 4.2.1 as of 2025-08-01 · View in PDF → · official source ↗

their proper use.(T-0) Once trained, individual workers and the environment must be protected. Workers are personally responsible for following safety procedures. (T-0) DAFMAN32-1067 1 JULY 2025 19 Chapter 4 DRINKING WATER SYSTEMS 4.1. Water Facility Design. Design drinking water systems in accordance with UFC 3-230-01, Water Storage and Distribution; UFC 3-230-03, Water Treatment; UFC 3-420-01, Plumbing Systems; UFC 4-020-01, DoD Security Engineering Facilities Planning Manual; UFC 4-020- 02FA, Security Engineering: Concept Design (CUI); and UFC 4-020-03FA, Security Engineering: Final Design (CUI). 4.2. Facility Operation and Maintenance. 4.2.1. Water Treatment and Distribution Systems. Installations must operate and maintain water treatment and distribution facilities according to this D

UFC 1-201-01 as of 2022-03-04 · official source ↗

and Section titled “Conflicts in Criteria.” Requirements in UFC 3-420-01, Section titled “Energy Efficiency in Water Conservation” and Section titled “Reliability” do not apply; however, consideration must be given to resource conservation where and when practical. See paragraph 1-11 of this UFC, “Resource Conservation.” Follow UFC 3-420-01, Section titled “Piping Arrangement.” Piping is not required to be concealed or painted. Follow UFC 3-420-01, Appendix A: IPC Chapter 1 “Administration” Supplements, Item A, Delete Chapter 1 in its entirety. Follow UFC 3-420-01, Appendix A: IPC Chapter 2 “Definitions” Supplements. 4-5.7 Plumbing - General Regulations. Follow the International Plumbing Code (IPC), Chapter 3, General Regulations, with the following exceptions: • Section 310.5, “Urinal Par

UFC 4-730-10 as of 2019-05-08 · official source ↗

s unless required otherwise by UFC 1-200-01 and UFC 3-420-01. • Two-company station: Provide 1 water closet, 1 shower, and 1 lavatory for females, and provide 4 water closets, 4 showers, and 3 lavatories for males unless required otherwise by UFC 1-200-01 and UFC 3-420-01. For larger stations, consult with user, UFC 1-200-01, and UFC 3-420-01 for final fixture count but plan for concentrated usage of the toilets after a call and the disparity between male and female fixture counts. Note: Use of individual unisex shower/changing rooms as dictated by installation mission requirements is acceptable. Provide a janitor's closet associated with or in proximity to this room. This closet includes a floor mop sink with hot and cold water and a hose connection, a floor drain, and storage for pails,

UFC 3-430-09 as of 2025-07-28 · official source ↗

CRITERIA https://www.wbdg.org/dod/ufc UFC 1-200-01, DoD Building Code UFC 3-430-09 28 July 2025 158 UFC 3-130-05, Arctic and Subarctic Utilities UFC 3-220-01, Geotechnical Engineering UFC 3-301-01, Structural Engineering UFC 3-401-01, Mechanical Engineering UFC 3-410-01, Heating, Ventilating, and Air Conditioning Systems UFC 3-420-01, Plumbing Systems UFC 3-420-02, Compressed Air UFC 3-430-05, Natural Gas and Liquified Petroleum Gas (LPG) Distribution Pipelines UFC 3-570-01, Cathodic Protection UFC 4-010-06, Cybersecurity of Facility-Related Control Systems (FRCS) UFC 4-150-02, Dockside Utilities for Ship Service UNIFIED FACILITIES GUIDE SPECIFICATIONS https://www.wbdg.org/dod/ufgs UFGS 09 97 13.28, Protection of Buried Steel Piping and Steel Bulkhead Tie Rods UFGS 22 14 29.00, Sump Pumps

Unofficial. Answers come from indexed publication text and may be incomplete or out of date. Your MAJCOM/unit supplement may be stricter. Always verify against the official publication before acting, citing, or writing a finding.

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