UFGS Changes and Revisions 
Related Materials: Policy on UFGS Changes and Revisions
Below is a listing of the Revisions and Changes made to UFGS Sections for each quarterly release.
To view a list for a specific UFGS Release, select the UFGS release date from the 'Release' drop-down and click 'Apply'.
To view a list of all the revisions and changes made to a specific UFGS Section, select 'Any' from the "Release' drop down, type the Section number into the Search bar and select the Section to view, then click 'Apply'.
After clicking 'Apply', you can PRINT REPORT, which will include the nature of the change/revision.
To view the complete detailed history of all the revisions and changes made to a UFGS Section, click on the Section title.
| KEY | PREPARING ACTIVITY (PA) | A Army | N Navy | F Air Force | S NASA |
|---|---|---|---|---|---|
| ACTION | N New | R Revision | C Change | D Deletion |
| Release | PA |
UFGS Section |
Date | Action | Change # | Nature of Change or Revision |
|---|---|---|---|---|---|---|
| Feb-2024 | N | UFGS 26 23 00 Low Voltage Switchgear | Feb-2024 | R | Complete review and update to incorporate CCRs and update requirements for mitigating arc flash hazards. | |
| Nov-2017 | S | UFGS 26 23 00.00 40 Switchboards and Switchgear | Nov-2017 | R | Tri- Annual Database Maintenance (TADM) completed. | |
| Aug-2017 | S | UFGS 26 23 00.00 40 Switchboards and Switchgear | Nov-2014 | C | 1 | Updated to coordinate archiving of Section 23 09 23.13 20 BACnet Direct Digital Control Systems for HVAC to meet the requirement of 10 USC 2867 to adopt a “Department wide, Open Protocol, Energy Monitoring and Utility Control System Specification” for use in military construction and military family housing activities. |
| Nov-2014 | S | UFGS 26 23 00.00 40 Switchboards and Switchgear | Nov-2014 | R | Tri-Annual Database Maintenance (TADM) completed. | |
| Aug-2010 | S | UFGS 26 23 00.00 40 Switchboards and Switchgear | Aug-2010 | R | Standard tailoring for RCBEA incorporated; other minor revisions throughout | |
| Nov-2008 | S | UFGS 26 23 00.00 40 Switchboards and Switchgear | Nov-2008 | N | New section - towards unification | |
| Feb-2011 | S | UFGS 26 23 00.00 40 Switchboards and Switchgear | Feb-2011 | R | CCR #408 - comments were incorporated | |
| Aug-2017 | N | UFGS 26 24 13 Switchboards | May-2015 | C | 1 | Updated to coordinate archiving of Section 23 09 23.13 20 BACnet Direct Digital Control Systems for HVAC to meet the requirement of 10 USC 2867 to adopt a “Department wide, Open Protocol, Energy Monitoring and Utility Control System Specification” for use in military construction and military family housing activities. |
| May-2015 | N | UFGS 26 24 13 Switchboards | May-2015 | N | This is a "NEW" guide specification section number that, in part, replaces UFGS 26 23 00 Switchboards and Switchgear. The original guide specification was separated into two specifications: UFGS 26 23 00, Low Voltage Switchgear and UFGS 26 24 13 Switchboards, and both sections have also had a complete technical update. | |
| Aug-2021 | N | UFGS 26 24 13 Switchboards | Aug-2021 | R | Complete review. Revised to incorporate CCRs. | |
| Aug-2016 | S | UFGS 26 24 16.00 40 Panelboards | Aug-2016 | R | Tri-Annual Database Maintenance (TADM) completed | |
| Aug-2010 | S | UFGS 26 24 16.00 40 Panelboards | Aug-2010 | R | Standard tailoring for RCBEA incorporated; other minor revisions throughout | |
| Aug-2013 | S | UFGS 26 24 16.00 40 Panelboards | Aug-2013 | R | Tri-Annual Database Maintenance (TADM) completed | |
| Nov-2008 | S | UFGS 26 24 16.00 40 Panelboards | Nov-2008 | R | Revised throughout towards unification | |
| Jul-2007 | S | UFGS 26 24 16.00 40 Panelboards | Jul-2007 | R | Reference and Section References (SRF) update | |
| Jan-2007 | S | UFGS 26 24 16.00 40 Panelboards | Jan-2007 | R | Section References (SRF) update | |
| Jun-2006 | S | UFGS 26 24 16.00 40 Panelboards | Jun-2006 | R | Section References (SRF) updated | |
| Aug-2019 | S | UFGS 26 24 16.00 40 Panelboards | Aug-2019 | R | Tri-Annual Database Maintenance (TADM) which consists of updating of Section Format, imperative language and formatting review, and verification of all reports and spelling. | |
| Nov-2014 | S | UFGS 26 24 19.00 40 Motor-Control Centers | Nov-2014 | R | Tri-Annual Database Maintenance (TADM) completed. | |
| Aug-2010 | S | UFGS 26 24 19.00 40 Motor-Control Centers | Aug-2010 | R | Standard tailoring for RCBEA incorporated; other minor revisions throughout | |
| Nov-2008 | S | UFGS 26 24 19.00 40 Motor-Control Centers | Nov-2008 | R | Revised throughout towards unification | |
| Jul-2007 | S | UFGS 26 24 19.00 40 Motor-Control Centers | Jul-2007 | R | Reference and Section References (SRF) update | |
| Jan-2007 | S | UFGS 26 24 19.00 40 Motor-Control Centers | Jan-2007 | R | Section References (SRF) update | |
| Jun-2006 | S | UFGS 26 24 19.00 40 Motor-Control Centers | Jun-2006 | R | Title changed from MOTOR CONTROL; Section References (SRF) updated | |
| May-2019 | S | UFGS 26 24 19.00 40 Motor-Control Centers | May-2019 | R | Tri-Annual Database Maintenance (TADM) which consists of updating of Section Format, imperative language and formatting review, and verification of all reports and spelling. | |
| Aug-2008 | S | UFGS 26 26 00.00 40 Power Distribution Units | Aug-2008 | R | Section References (SRF) update | |
| Nov-2008 | S | UFGS 26 26 00.00 40 Power Distribution Units | Aug-2008 | D | Superseded by UFGS 33 71 01.00 40 Overhead Transmission and Distribution. Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| Jan-2007 | S | UFGS 26 26 00.00 40 Power Distribution Units | Jan-2007 | R | Section References (SRF) update | |
| Jun-2006 | S | UFGS 26 26 00.00 40 Power Distribution Units | Jun-2006 | R | Title changed from MEDIUM VOLTAGE OVERHEAD POWER DISTRIBUTION; Reference and Section References (SRF) updated | |
| Nov-2014 | F | UFGS 26 27 13.10 30 Electric Meters | Oct-2007 | C | 1 | Corrected tagging error in paragraph 2.1.4 e. |
| Aug-2018 | F | UFGS 26 27 13.10 30 Electric Meters | Oct-2007 | C | 2 | Sustainability updates required to coordinate with the Federal Codes and DoD policies and procedures. |
| Oct-2007 | F | UFGS 26 27 13.10 30 Electric Meters | Oct-2007 | N | New section | |
| Feb-2011 | N | UFGS 26 27 14.00 20 Electricity Metering | Feb-2011 | N | New section | |
| Feb-2021 | N | UFGS 26 27 14.00 20 Electricity Metering | Feb-2021 | R | Complete review and update. | |
| May-2021 | N | UFGS 26 27 14.00 20 Electricity Metering | Feb-2021 | C | 1 | In response to the following: CCR 937, IEC 60687 has been removed from the Reference Article and the section text; CCR 4620, the accuracy class in potential and current transformers was changed to "0.15" in paragraphs Potential Transformer Requirements (2.1.2) item f. and Current Transformer Requirements (2.1.3) item b.; and CCR 5117, reference to a 'Voltage Requirements' paragraph was removed from paragraph (2.1.5) Disconnect Method, item c. |
| Aug-2008 | S | UFGS 26 27 26.00 40 Wiring Devices | Jul-2007 | D | Redundant to UFGS 26 05 00 Common Work Results for Electrical | |
| Jul-2007 | S | UFGS 26 27 26.00 40 Wiring Devices | Jul-2007 | R | Reference Update | |
| Jan-2007 | S | UFGS 26 27 26.00 40 Wiring Devices | Jan-2007 | R | Section References (SRF) update | |
| Oct-2006 | S | UFGS 26 27 26.00 40 Wiring Devices | Oct-2006 | R | Section References (SRF) update | |
| Jun-2006 | S | UFGS 26 27 26.00 40 Wiring Devices | Jun-2006 | R | Title changed from STANDARD WIRING SYSTEMS; Reference and Section References (SRF) updated | |
| Aug-2013 | N | UFGS 26 27 29 Marina Electrical Work | Apr-2006 | C | 1 | Modified subparts 2.2.3.2, 2.4.1, 2.14.3 (note) and 2.14.4 (note) |
| Apr-2006 | N | UFGS 26 27 29 Marina Electrical Work | Apr-2006 | R | To conform with CSI MasterFormat, replacing without change UFGS-16407 (August 2004) | |
| May-2021 | N | UFGS 26 27 29 Marina Electrical Work | May-2021 | R | Complete review and update. | |
| Oct-2007 | A | UFGS 26 28 00.00 10 Motor Control Centers, Switchboards and Panelboards | Oct-2007 | R | Revised metrication | |
| Aug-2022 | A | UFGS 26 28 00.00 10 Motor Control Centers, Switchboards and Panelboards | Aug-2022 | R | Complete review and update. | |
| Oct-2007 | A | UFGS 26 28 01.00 10 Coordinated Power System Protection | Oct-2007 | R | Updated seismic criteria | |
| Aug-2021 | A | UFGS 26 28 01.00 10 Coordinated Power System Protection | Aug-2021 | R | Complete review and update. | |
| Aug-2023 | A | UFGS 26 28 01.00 10 Coordinated Power System Protection | Aug-2021 | D | Superseded by UFGS 26 05 73 POWER SYSTEM STUDIES. Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| Aug-2008 | S | UFGS 26 28 16.00 40 Enclosed Switches and Circuit Breakers | Jul-2007 | D | Superseded by UFGS 26 28 21.00 40 Automatic Transfer Switches | |
| Jul-2007 | S | UFGS 26 28 16.00 40 Enclosed Switches and Circuit Breakers | Jul-2007 | R | Section References (SRF) update | |
| Jan-2007 | S | UFGS 26 28 16.00 40 Enclosed Switches and Circuit Breakers | Jan-2007 | R | Section References (SRF) update | |
| Jun-2006 | S | UFGS 26 28 16.00 40 Enclosed Switches and Circuit Breakers | Jun-2006 | R | Title changed from SWITCHES; Section References (SRF) updated | |
| May-2017 | S | UFGS 26 28 21.00 40 Automatic Transfer Switches | May-2017 | R | Tri-Annual Database Maintenance (TADM) completed | |
| Aug-2010 | S | UFGS 26 28 21.00 40 Automatic Transfer Switches | Aug-2010 | R | Standard tailoring for RCBEA incorporated; other minor revisions throughout | |
| Aug-2014 | S | UFGS 26 28 21.00 40 Automatic Transfer Switches | Aug-2014 | R | Tri Annual Database Maintenance (TADM) completed | |
| Aug-2008 | S | UFGS 26 28 21.00 40 Automatic Transfer Switches | Aug-2008 | N | Superseding UFGS 26 28 16.00 40 Enclosed Switches and Circuit Breakers; Minor Edits | |
| Nov-2008 | S | UFGS 26 28 21.00 40 Automatic Transfer Switches | Nov-2008 | R | Revised throughout towards unification | |
| Aug-2011 | S | UFGS 26 28 21.00 40 Automatic Transfer Switches | Aug-2011 | R | Compliance with CSI SectionFormat; Submittal Article Compliance | |
| Aug-2023 | S | UFGS 26 28 21.00 40 Automatic Transfer Switches | Aug-2023 | R | Complete life cycle review. Update technical requirements, references, formatting. Incorporated CCR# 9563 | |
| Nov-2008 | A | UFGS 26 29 01.00 10 Electric Motors, 3-Phase Vertical Induction Type | Nov-2008 | R | Compliance with CSI SectionFormat | |
| Nov-2022 | A | UFGS 26 29 01.00 10 Electric Motors, 3-Phase Vertical Induction Type | Nov-2022 | R | Complete review and update | |
| Nov-2008 | A | UFGS 26 29 02.00 10 Electric Motors, 3-Phase Vertical Synchronous Type | Nov-2008 | R | Compliance with CSI SectionFormat | |
| Nov-2022 | A | UFGS 26 29 02.00 10 Electric Motors, 3-Phase Vertical Synchronous Type | Nov-2022 | R | Complete review and update. | |
| Aug-2018 | N | UFGS 26 29 23 Adjustable Speed Drive (ASD) Systems Under 600 Volts | Apr-2006 | C | 1 | Sustainability updates required to coordinate with the Federal Codes and DoD policies and procedures. |
| Apr-2006 | N | UFGS 26 29 23 Adjustable Speed Drive (ASD) Systems Under 600 Volts | Apr-2006 | R | To conform with CSI MasterFormat, replacing without change UFGS-16261 (August 2004) | |
| Feb-2020 | N | UFGS 26 29 23 Adjustable Speed Drive (ASD) Systems Under 600 Volts | Feb-2020 | R | Complete review and update, including Section Title change (was VARIABLE FREQUENCY DRIVE SYSTEMS UNDER 600 VOLTS) | |
| May-2021 | N | UFGS 26 29 23 Adjustable Speed Drive (ASD) Systems Under 600 Volts | Feb-2010 | C | 1 | Changes made to address various CCRs: added "IEC 61000-3-12" to References and paragraph Power Line Surge Protection (1.3.2.1); replaced reference UL 508C with "UL 61800-5-1"; ASD was changed to "110" percent in list item d. and "IEC" was added to list item r. in article (2.1) ADJUSTABLE SPEED DRIVES ; and article (2.2) ENCLOSURES was updated. |
| May-2015 | N | UFGS 26 31 00 Facility-Scale Solar Photovoltaic (PV) Systems | May-2015 | N | New section | |
| Nov-2021 | N | UFGS 26 31 00 Facility-Scale Solar Photovoltaic (PV) Systems | Nov-2021 | R | Complete review and revision including title change from SOLAR PHOTOVOLTAIC (PV) COMPONENTS. | |
| Aug-2018 | N | UFGS 26 32 13.00 20 Single Operation Generator Sets | Aug-2018 | R | Revised to incorporate environmental updates to meet 40 CFR 112 requirements and to update spec format. | |
| Apr-2007 | N | UFGS 26 32 13.00 20 Single Operation Generator Sets | Apr-2007 | R | Section note revised to add Capital Improvements requirements | |
| Nov-2018 | N | UFGS 26 32 13.00 20 Single Operation Generator Sets | Aug-2018 | C | 1 | Deleted now obsolete calculation requirement for Brake Mean Effective Pressure (BMEP). |
| Nov-2019 | N | UFGS 26 32 13.00 20 Single Operation Generator Sets | Aug-2018 | C | 2 | Incorporated dispersal of criteria from the retired UFC 3-440-05N TROPICAL ENGINEERING, and the addition of corrosion protection criteria to coordinate with UFC 1-200-01 DoD BUILDING CODE. |
| May-2020 | N | UFGS 26 32 13.00 20 Single Operation Generator Sets | Aug-2018 | D | Superseded by UFGS 26 32 15.00 ENGINE-GENERATOR SET STATIONARY 15-2500 KW, WITH AUXILIARIES. Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| Feb-2010 | A | UFGS 26 32 14.00 10 Diesel-Generator Set, Stationary 15-300 KW, Standby Applications | Feb-2010 | R | Formatting correction including submittals | |
| Oct-2007 | A | UFGS 26 32 14.00 10 Diesel-Generator Set, Stationary 15-300 KW, Standby Applications | Oct-2007 | R | Updated seismic criteria | |
| May-2020 | A | UFGS 26 32 14.00 10 Diesel-Generator Set, Stationary 15-300 KW, Standby Applications | Feb-2010 | D | Superseded by UFGS 26 32 15.00 ENGINE-GENERATOR SET STATIONARY 15-2500 KW, WITH AUXILIARIES. Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| Oct-2007 | A | UFGS 26 32 15.00 10 Diesel-Generator Set Stationary 100-2500 KW, with Auxiliaries | Oct-2007 | R | Updated seismic criteria | |
| Nov-2019 | A | UFGS 26 32 15.00 10 Diesel-Generator Set Stationary 100-2500 KW, with Auxiliaries | Oct-2007 | C | 1 | Incorporated dispersal of criteria from the retired UFC 3-440-05N TROPICAL ENGINEERING, and the addition of corrosion protection criteria to coordinate with UFC 1-200-01 DoD BUILDING CODE. |
| May-2020 | A | UFGS 26 32 15.00 10 Diesel-Generator Set Stationary 100-2500 KW, with Auxiliaries | Oct-2007 | D | Superseded by UFGS 26 32 15.00 ENGINE-GENERATOR SET STATIONARY 15-2500 KW, WITH AUXILIARIES. Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| May-2020 | A | UFGS 26 32 15.00 Engine-Generator Set Stationary 15-2500 kW, with Auxiliaries | May-2020 | N | New Unified UFGS superseding UFGS-26 32 13.00 20 Single Operation Generator Sets, UFGS-26 32 14.00 10 Diesel-Generator Set, Stationary 15-300 kW, Standby Applications, and UFGS-26 32 15.00 10 Diesel-Generator Set, Stationary 100-250 kW, with Auxiliaries | |
| Nov-2014 | N | UFGS 26 32 26 Motor-Generator Sets, 400 Hertz (HZ) | Apr-2006 | D | Retired; Section technology is outdated. Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| Oct-2007 | A | UFGS 26 32 33.00 10 Uninterruptible Power Supply (UPS) System Above 15 KVA Capacity | Oct-2007 | R | Updated seismic criteria | |
| May-2019 | A | UFGS 26 32 33.00 10 Uninterruptible Power Supply (UPS) System Above 15 KVA Capacity | Oct-2007 | D | Superseded by UFGS 26 33 53 STATIC UNINTERRUPTIBLE POWER SUPPLY (UPS). Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| Oct-2007 | N | UFGS 26 32 33.00 20 Installation of Uninterruptible Power Supply (UPS) | Apr-2006 | D | Superseded by UFGS 26 33 53.00 20 Uninterruptible Power Supply (UPS). Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| May-2019 | A | UFGS 26 33 53 Static Uninterruptible Power Supply (UPS) | May-2019 | N | Superseding UFGS 26 32 33.00 10 UNINTERRUPTIBLE POWER SUPPLY (UPS) SYSTEM ABOVE 15 KVA CAPACITY and UFGS 26 33 53.00 20 UNINTERRUPTIBLE POWER SUPPLY (UPS). | |
| Jan-2008 | N | UFGS 26 33 53.00 20 Uninterruptible Power Supply (UPS) | Jan-2008 | R | Revised paragraphs 3.1 and 3.3.1 | |
| Apr-2008 | N | UFGS 26 33 53.00 20 Uninterruptible Power Supply (UPS) | Apr-2008 | R | Minor revisions throughout | |
| Aug-2018 | N | UFGS 26 33 53.00 20 Uninterruptible Power Supply (UPS) | Apr-2008 | C | 1 | Sustainability updates required to coordinate with the Federal Codes and DoD policies and procedures. |
| Oct-2007 | N | UFGS 26 33 53.00 20 Uninterruptible Power Supply (UPS) | Oct-2007 | N | Superseding UFGS 26 32 33.00 20 Installation of Uninterruptible Power Supply (UPS) | |
| May-2019 | N | UFGS 26 33 53.00 20 Uninterruptible Power Supply (UPS) | Apr-2008 | D | Superseded by UFGS 26 33 53 STATIC UNINTERRUPTIBLE POWER SUPPLY (UPS) (Preparing Authority: Army) Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| Apr-2008 | S | UFGS 26 35 33 Power Factor Correction Equipment | Apr-2008 | N | Superseding UFGS 26 35 33.00 40; Section was renumbered with no title change | |
| Aug-2008 | S | UFGS 26 35 33 Power Factor Correction Equipment | Apr-2008 | D | Renumbered/ Superseded by UFGS 26 35 33.00 40 with same title | |
| Aug-2016 | S | UFGS 26 35 33.00 40 Power Factor Correction Equipment | Aug-2016 | R | Tri-Annual Database Maintenance (TADM) completed | |
| Aug-2010 | S | UFGS 26 35 33.00 40 Power Factor Correction Equipment | Aug-2010 | R | Standard tailoring for RCBEA incorporated; other minor revisions throughout | |
| Apr-2008 | S | UFGS 26 35 33.00 40 Power Factor Correction Equipment | Jul-2007 | D | Renumbered to UFGS 26 35 33 with no title change Note: The last published PDF version of this Section is available in the previous release in the UFGS Archives. | |
| Aug-2013 | S | UFGS 26 35 33.00 40 Power Factor Correction Equipment | Aug-2013 | R | Tri-Annual Database Maintenance (TADM) completed | |
| Aug-2008 | S | UFGS 26 35 33.00 40 Power Factor Correction Equipment | Aug-2008 | N | Renumbered; Superseding UFGS 26 35 33 with same title | |
| Nov-2008 | S | UFGS 26 35 33.00 40 Power Factor Correction Equipment | Nov-2008 | R | Revised throughout towards unification | |
| Jul-2007 | S | UFGS 26 35 33.00 40 Power Factor Correction Equipment | Jul-2007 | R | Reference and Section References (SRF) update |
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