19AU9026Q0008_Attachment J_2_1.pdf

OPSR 1 – OBO CODES | FY26

J.2.1 OBO Codes

FY26

October 1, 2025

UNCLASSIFIED

OBO PROJECT STANDARD REQUIREMENTS (OPSR) | OVERVIEW | FY26

About This Edition The 2026 Edition of the OBO Project Standard Requirements (OPSR) is organized into the following volumes in order of precedence:

• OPSR 1 – OBO Codes*

• OPSR 2 – OBO Guide Specifications

• OPSR 3 – OBO Project Requirements

• OPSR 4 – OBO Space and Adjacencies

• OPSR 5 – OBO Deliverable Requirements

• OPSR 6 – Reserved

• OPSR 7 – OBO Standard Templates

• OPSR 8 – OBO Standard Questionnaires

*OBO Codes (U) (Full minus OBO Telecommunications Code Volume B)

*OBO Telecommunications Code Volume B (SBU)

OPSR Volumes 1-4 make up the OBO Design Standards and are under the purview of the Office of Design and Engineering (OBO/PDCS/DE). The documents contained herein represent all guidance and technical requirements for these standards.

OPSR Volumes 5-8 make up the OBO Deliverable Resources and are under the purview of the Office of Project Development and Coordination (OBO/PDCS/PDC).

Design Principles The mission of the Bureau of Overseas Buildings Operations (OBO) is to provide the most effective facilities for conducting United States diplomacy abroad.

OBO/PDCS/DE develops the design standards and criteria for all overseas State

Department facilities. OBO adopts industry codes and standards and supplements those with unique State Department requirements.

Design Tenets Embassy and consulate buildings should present a welcoming architectural form that represents the United States and acknowledges Host Nation culture with mutual respect via architecture, design, engineering, technology, art, and culture.

The State Department expects to use and operate its buildings for many decades.

This places a greater emphasis on the total cost of ownership long term. Life-cycle cost-effective energy and water efficiency measures should be incorporated to the extent operable and maintainable by local staff. Passive strategies, such as high insulation levels and thermal bridge reductions, should be prioritized over mechanical, high-tech, or proprietary systems with greater maintenance requirements. The concept of whole-building performance must be incorporated into the design to optimize the balance of function, security, safety, energy, resiliency, operability, and maintainability.

2025-2026 Changes The 2026 OBO Design Standards include updates to guidance and technical requirements submitted by diverse OBO subject matter experts. Some highlights include:

• Adoption of the 2024 International Code Council Family of Codes:

o Moved Chapters 9 and 10 requirements from the OBO International Fire

Code to the International Building Code.

o Updated Structural tables in the International Building Code.

o Added Equipment Rooms and Chemical Storage Rooms to the

International Swimming Pool and Spa Code.

o Updated Harvesting Water requirements in the International Zoning

Code.

o Divided the OBO Telecommunications Code into separate Unclassified (U) and Sensitive But Unclassified (SBU) volumes.

• New OBO Guide Specification:

o 329300 Plants.

• Reorganization of the OBO Project Requirements (OPR):

o Reformatted content so every paragraph can be cited.

o Reordered OPR documents to match drawing documentation standards in OPSR 05 (See Crosswalk).

o Consolidated OPR 4-022-01 Compound Access Control and OPR 4-201-01

Support Buildings into OPR 02 General (See Crosswalk).

o Renamed OPR 2-300-01 Utility Services to OPR 08 Civil (See Crosswalk).

o Renamed OPR 2-601-01 Site Design to OPR 09 Landscape (See Crosswalk).

o Developed new OPR 15 Water Feature (See Crosswalk).

• Elimination of the 2025 OPSR Volume 6 – OBO Reference Documents:

o Deleted or revised outdated drawings.

o Incorporated revised drawings into the appropriate OPR as attachments

(See Crosswalk).

• Updates to the Space Requirements Program Modules (SRP-Ms):

o Developed new SRP-M to provide guidance on size, naming, and required components.

o Developed new SRP-Ms for the DT Suite (Diplomatic Technology).

o Created a new FLEX Mission space group that includes all standard SRP-

Ms.

Please reference the CCR Change Log and FY26 Crosswalks (OPR and Drawings) for detailed information concerning incorporated changes. For changes related to SRP-

Ms and adjacency diagrams, reference the Summary of Changes tables in OPSR 4 –

OBO Space and Adjacencies.

Contact designstandards@state.gov for general questions or comments about these standards. If you are under contract on a State Department project, you must go through your Contracting Officer’s Representative for any contract-related questions.

LIMITED CONTENT - REPRODUCTION AND DISTRIBUTION IS AUTHORIZED BUT RESTRICTED

The content included in this version of OBO Standard Project Requirements may be limited based on project scope and sensitivity of the security-related information. Such information is marked

Sensitive but Unclassified (SBU) or Controlled Unclassified Information (CUI) and will not be included in publicly released versions of these documents. The SBU (and higher) information will be available through the Contracting Officer’s Representative after the requestor's need and credentials are authenticated. Unclassified content herein may become SBU/CUI once linked to a specific project, site, or building and must be handled accordingly. Click here for more information and SBU/CUI handling instructions and cover page.

UNCLASSIFIED

UNCLASSIFIED

mailto:designstandards@state.gov https://fam.state.gov/FAM/12FAM/12FAM0540.html

OBO PROJECT STANDARD REQUIREMENTS (OPSR) | CHANGE LOG | FY26 2025-10-01

Document/

Section Chapter Change

General

All documents

N/A Revised formatting of published documents to enhance searchability.

OPSR 1 - OBO Codes

IBC Table of Contents Added chapter 35.

IBC Ch 1 - Scope and Administration Added section 105.2 and renumbered subsequent sections.

IBC Ch 1 - Scope and Administration Revised section 104 to adopt the 2024 ICC code editions.

IBC Ch 1 - Scope and Administration Revised section 105.1.1 regarding requiring permits.

IBC Ch 1 - Scope and Administration Revised section 107.

IBC Ch 4 - Special Detailed Requirements based on Use and Occupancy Deleted section 428.3.5 from Representational Housing

Section.

IBC Ch 4 - Special Detailed Requirements based on Use and Occupancy Renumbered sections to align with IBC.

IBC Ch 5 - General Building Heights and Areas Deleted section 505.

IBC Ch 7 - Fire and Smoke Protection Features Added requirement to 703.7 to state rating.

IBC Ch 9 - Fire Protection and Life Safety Systems Relocated fire alarm requirements from specifications to code.

IBC Ch 9 - Fire Protection and Life Safety Systems Relocated IFC Chapter 9 requirements to IBC Chapter 9.

IBC Ch 11 - Accessibility Revised and added sections to Ch. 11.

2026 OBO Project Standard Requirements (OPSR) Content Changes

Note: Changes listed here are not exhaustive and are provided for user convenience only. Contractors are responsible for compliance with all technical requirements.

CHANGE LOG

Section Chapter Change

IBC Ch 12 - Interior Environment Revised formatting of section 1208 to match code style guide.

IBC Ch 12 - Interior Environment Revised section 1206.5.1.

IBC Ch 15 - Roof Assemblies and Rooftop Structures Revised section 1506.4.

IBC Ch 16 - Structural Design Revised section 1624.

IBC Ch 16 - Structural Design Revised section 1624.2.2.

IBC Ch 24 - Glass and Glazing Revised paragraph 2405.6.

IBC Ch 24 - Glass and Glazing Revised section 1.2.D.

IBC Ch 29 - Plumbing Revised section 2902.1.2.

IBC Ch 29 - Plumbing Revised sections 2902.3.3 and 2902.3.3.1.

IBC Ch 34 - Physical and Technical Security Requirements Revised requirements for manhole cover locks.

IBC Ch 34 - Physical and Technical Security Requirements Added reference to OTC requirements to 3420.5.3.3.

IBC Ch 34 - Physical and Technical Security Requirements Deleted language in 3404.9.8.2 regarding specific types of locks.

IBC Ch 34 - Physical and Technical Security Requirements Deleted section 3403.11.1 and renumbered remaining sections.

IBC Ch 34 - Physical and Technical Security Requirements Renumbered section 3404.8.2.

IBC Ch 34 - Physical and Technical Security Requirements Revised and renamed 3404.9.2 regarding egress route and elevator vestibules.

IBC Ch 34 - Physical and Technical Security Requirements Revised section 3404.11.3.

IBC Ch 34 - Physical and Technical Security Requirements Revised section 3404.5.1.1.

IBC Ch 34 - Physical and Technical Security Requirements Revised section 3404.9.2:

IBC Ch 34 - Physical and Technical Security Requirements Revised section 3420.4.1.3.

IBC Ch 34 - Physical and Technical Security Requirements Revised sections 3404.9.6.3, 3404.9.2.1 & 3404.9.2.2

IBC Appendix N Replicable Buildings Deleted the year reference.

IBC Appendix W Replaced references to Appendix R with Appendix W.

Section Chapter Change

IEBC Ch 10 - Change in Occupancy Revised section 1006 to correct reference to section 304.3.1.

IFC Ch 5 - Fire Service Features Revised to address possible locations for fire command center.

IFC Ch 9 - Fire Protection and Life Safety Systems Clarified section 907.2.2.2 regarding smoke detection.

IFC Ch 9 - Fire Protection and Life Safety Systems Revised section 906.1.2.1.3 item 1.

IFC Ch 10 - Means of Egress Added reference to OBO-ICS IBC and clarified where it differed.

IMC Ch 1 - Scope and Administration Clarified that HHW is prohibited in PCC.

IMC Ch 3 - General Requirements Revised language to address corrosion concerns.

IMC Ch 3 - General Requirements Revised section 312.2.

IMC Ch 3 - General Requirements Revised section 313.6.1.

IMC Ch 4 - Ventilation Clarified section 403.3 regarding circulation spaces.

IMC Ch 4 - Ventilation Revised chapter 4 to coordinate with OBO-ICS IBC chapter

34.

IMC Ch 5 - Exhaust Systems Revised section 504.3.

IMC Ch 5 - Exhaust Systems Revised to prescribe generator exhaust termination locations.

IMC Ch 11 - Refrigeration Clarified PCC chillers do not count as one of the offline chillers.

IMC Ch 12 - Hydronic Piping Revised materials table. See footnotes.

IMC Ch 13 - Fuel Oil Piping and Storage Revised to prevent overflow of fuel in generator room.

IPC Ch 6 - Water Supply and Distribution Added meter requirements for irrigation water to IZC.

IRC Ch 3 - Building Planning Deleted reference to Design Criteria document.

IRC Ch 3 - Building Planning Revised section 310 Residential Group R for consistency.

IRC Ch 6 - Wall Construction Clarified section R609.1.1 to prohibit PVC and PVC-clad windows and door frames.

Section Chapter Change

IRC Table of Contents Rejected new 2024 IRC Appendices NC, NF, NG, NH, and NJ.

ISPSC Ch 4 - Public Swimming Pools Relocated text from section 320 (formerly 319) and incorporated into section 325.

IZC Ch 6 - Commercial and Commercial/Residential Zones Added section 604.3.4.

IZC Ch 6 - Commercial and Commercial/Residential Zones Revised section 604.10.

IZC Ch 8 - General Provisions Added exemption in 812.5.4.3

IZC Ch 8 - General Provisions Added fall protection requirement in 812.2.16.2.

IZC Ch 8 - General Provisions Added list in 818.2 regarding corrosion resistance.

IZC Ch 8 - General Provisions Clarified language 813.3.4.

IZC Ch 8 - General Provisions Clarified section 801.4.2.

IZC Ch 8 - General Provisions Clarified section 813.3.2.2.

IZC Ch 8 - General Provisions Clarified sections 802, 803, and 804 are not adopted.

IZC Ch 8 - General Provisions Deleted hydraulic equipment from 813.8.1.

IZC Ch 8 - General Provisions Deleted section 801.3.3.

IZC Ch 8 - General Provisions Renumbered paragraphs 813.3.3.1 thru 813.3.5.4 with new numbers 813.3.4 thru 813.3.12.4.

IZC Ch 8 - General Provisions Revised paragraphs and titles in subsections from 813 to

816.

IZC Ch 8 - General Provisions Revised section 811.3.1.1.

IZC Ch 8 - General Provisions Revised section 812 for clarity.

IZC Ch 8 - General Provisions Revised sections 813.3.12.3 through 816.13.

IZC Ch 8 - General Provisions Revised site slope requirements.

NEC Ch 2 - Wiring and Protection Revised cable sizes for consistency.

OTC Ch 1 - Scope and Administration Added section 101.1.1.

OTC Ch 1 - Scope and Administration Deleted language from 101.3.1.

OTC Ch 2 - Definitions Added definition "Work Area Outlet (WAO)".

Section Chapter Change

OTC Ch 2 - Definitions Revise definition of Distribution Device (DD).

OTC Ch 3 - General Requirements Deleted section 306.4

OTC Ch 3 - General Requirements Revised section 303.2.1.1.

OTC Ch 3 - General Requirements Revised section 304.1.2.

OTC Ch 3 - General Requirements Revised section 305.1.6.

OTC Ch 3 - General Requirements Revised section 308.1.1.

OTC Ch 3 - General Requirements Revised section 308.4.

OTC Ch 4 - Service Entrance and Site Distribution Deleted OTC section 404.1 #2.

OTC Ch 4 - Service Entrance and Site Distribution Revised section 402.1.

OTC Ch 4 - Service Entrance and Site Distribution Revised section 405.1.

OTC Ch 4 - Service Entrance and Site Distribution Revised section 405.5.6.

OTC Ch 5 - Telecommunications Equipment Spaces Revised section 501.2.

OTC Ch 5 - Telecommunications Equipment Spaces Revised section 502.3.

OTC Ch 5 - Telecommunications Equipment Spaces Revised section 502.5.

OTC Ch 5 - Telecommunications Equipment Spaces Revised section 504.1.1.

OTC Ch 6 - General Telecommunications Cabling for Buildings Revised chapter 6.

OTC Ch 6 - General Telecommunications Cabling for Buildings Revised section 605.2.

OTC Ch 11 - Telecommunications for Residential Buildings Revised chapter 11.

OTC Ch 15 - General Telecommunications for Office Buildings Revised chapter 15.

OTC Ch 15 - General Telecommunications for Office Buildings Revised section 1112.1.

OTC Ch 16 - Telecommunications Equipment Spaces in Office Buildings Revised chapter 16.

OTC Ch 17 - Telecommunications Cabling for Office Buildings Revised chapter 17.

OPSR 2 - Guide Specifications

Division 06 061719 - Cross-Laminated Timber Panels Added sections 1.4.D, 1.7, and 3.6.

Division 06 061800 - Glued-Laminated Construction Added section 1.4.F, 1.8, and 3.5.

Division 08 087135 - Non-Security Door Hardware Revised section 1.2.D - Keying Schedule.

Division 08 087135 - Non-Security Door Hardware Revised sections 2.6.A, 2.6.B.1 and 2.6.C.4.

Section Chapter Change

Division 08 087155 - Security Door Hardware Revised specification 087155-B Defense Attache suite hardware.

Division 08 088855 - Security Glazing Revised specification.

Division 10 104415 - Fire-Protection Specialties Revised specification.

Division 11 114000 - Food Service Equipment Revised section 3.9.

Division 11 115700 - Shop Equipment Revised Basis of Design models.

Division 11 115700 - Shop Equipment Revised section 2.10.F

Division 11 117000 - Medical Equipment Revised specification section 2.14 basis of design for surgical light.

Division 11 118126 - Window Washing and Fall Protection Accessories Renamed specification.

Division 14 142105 - Electric Tractions Elevators Revised language regarding combustible suspension.

Division 21 211305 - Fire Sprinkler Systems Revised language in specification.

Division 21 211305 - Fire Sprinkler Systems Revised reference standard in section 2.4.H.

Division 21 211305 - Fire Sprinkler Systems Revised referenced codes.

Division 22 223230 - Potable Water Treatment Revised language in specification.

Division 23 230905 - Instrumentation and Controls for HVAC Revised language in section 1.2.B.

Division 23 230905 - Instrumentation and Controls for HVAC Revised section 3.2.

Division 23 230905 - Instrumentation and Controls for HVAC Revised specification section 1.2.F.

Division 23 230905 - Instrumentation and Controls for HVAC Revised table 3.13.4 footnote to coordinate terminology.

Division 23 234105 - Air Filtration Modified number of FCU filters to be provided.

Division 23 236427 - Air-Cooled, Rotary-Screw Water Chillers Revised reference standards in 2.11.C.

Division 23 236427 - Air-Cooled, Rotary-Screw Water Chillers Revised specification to require chilled water treatment startup.

Division 23 237315 - Central-Station Air Handling Units Added designer notes to paragraph 2.2.

Division 23 237315 - Central-Station Air Handling Units Added designer notes to specification.

Division 23 237315 - Central-Station Air Handling Units Deleted requirement for davits.

Division 23 237315 - Central-Station Air Handling Units Revised section 2.2.B.

Section Chapter Change

Division 23 237315 - Central-Station Air Handling Units Revised specification regarding submittals.

Division 23 237315 - Central-Station Air Handling Units Revised specification section 1.4.

Division 26 260525 - Grounding and Bonding for Electrical Systems Clarified section 2.1.G regarding bonding requirements.

Division 26 260815 - Field Testing and Inspection Of Electrical Systems Added sub-paragraph 3.1.C.

Division 26 262325 - Power Sequence Of Operation Added paragraph 1.7.

Division 26 262325 - Power Sequence Of Operation Added sub-paragraph 1.6.B.

Division 26 262725 - Wiring Devices Revised requirements section 2.2.B.1.

Division 26 263214 - Engine Generators Deleted section 1.2.A.2 to defer to generator manufacturer.

Division 26 263214 - Engine Generators Revised reference standards in sections 1.2.A and 2.8.B.

Division 26 263214 - Engine Generators Revised section 2.8.B ASTM references.

Division 26 263552 - Low-Voltage Automatic Voltage Regulators Added designers note to clarify use.

Division 27 270508 - Common Work Results for Telecommunications Revised specification.

Division 27 270526 - Grounding and Bonding for Communications Systems Revised specification.

Division 27 270528 - Surface-Mounted Raceways for Communication Systems Revised section 2.2.C.

Division 27 270553 - Identification for Communications Systems Revised specification.

Division 27 270645 - Schedules for Audiovisual Systems Revised specification.

Division 27 271113 - Communications Entrance Protection Revised specification.

Division 27 271116 - Communications Cabinets and Frames Revised specification.

Division 27 271119 - Communications Termination Blocks and Patch Panels Revised specification.

Division 27 271123 - Communications Cable Management and Ladder Rack Revised specification.

Division 27 271305 - Communications Backbone Cabling Revised specification.

Division 27 271505 - Communications Horizontal Cabling Revised language in section 2.2-A-2.

Division 27 271505 - Communications Horizontal Cabling Revised specification.

Division 27 271543 - Communications Faceplates and Connectors Revised specification.

Division 27 272129 - Data Communication Switches and Power Supplies Revised specification.

Division 27 274100 - Audiovisual Systems General Requirements Revised specification.

Section Chapter Change

Division 27 274114 - Architecturally-Integrated Audiovisual Elements Revised specification.

Division 27 274117 - Projection Screens and Projector Lifts Revised specification.

Division 27 275105 - Audio Systems for Consular Services Revised specification.

Division 27 275118 - Sound Masking System Revised language.

Division 27 275118 - Sound Masking System Revised specification.

Division 27 275405 - Consular Queue Management System Infrastructure and

Displays

Revised specification.

Division 28 284626 - Addressable Fire Alarm Systems Revised referenced codes.

Division 32 323305 - Site Furnishings Added new specification.

Division 33 337105 - Underground Ducts and Raceways Revised section 2.5.

OPSR 3 - OBO Project Requirements

All OPRs N/A Renumbered and renamed OPRs in a logical manner.

N/A OPR 02 General Added new specification.

N/A OPR 02 General Revised section 1208.6.6 regarding maximum guard both height.

N/A OPR 02 General Revised section 2-4.5.1.

N/A OPR 02 General Revised to provide 3m clearance.

N/A OPR 04 Physical Security Incorporated updated Red Book.

N/A OPR 04 Physical Security Incorporated updated Red Book.

N/A OPR 09 Landscape (Formerly Site Design) Added new specification.

N/A OPR 09 Landscape (Formerly Site Design) Added new specification.

N/A OPR 09 Landscape (Formerly Site Design) Added new specification.

N/A OPR 09 Landscape (Formerly Site Design) Revised OPR regarding pool deck material.

N/A OPR 09 Landscape (Formerly Site Design) Revised OPR.

N/A OPR 09 Landscape (Formerly Site Design) Revised section 2-7.2.9.1.

N/A OPR 10 Architecture Renamed section 2-1.2.3.

Section Chapter Change

N/A OPR 10 Architecture Revised language to include bumper guards in service corridors.

N/A OPR 10 Architecture Revised OPR regarding exterior finish materials.

N/A OPR 10 Architecture Revised OPR regarding finish flooring installation.

N/A OPR 10 Architecture Revised requirements regarding glass railings.

N/A OPR 10 Architecture Revised section 2-1.1.1-5 regarding fire pump room access.

N/A OPR 10 Architecture Revised section 2-1.2.3.3 regarding roof hatches.

N/A OPR 10 Architecture Revised section 3.1.1.1 regarding vision panels.

N/A OPR 15 Water Feature Added new OPR.

N/A OPR 18 Mechanical Revised OPR regarding equipment replacement.

N/A OPR 18 Mechanical Revised section 2.1.

N/A OPR 18 Mechanical Revised section 2-1.3 regarding filter trays.

N/A OPR 18 Mechanical Revised section 2-1.4.3 regarding area drains.

N/A OPR 20 Fire Protection Added sections 2-2 and 2-3.

N/A OPR 26 Telecommunications and Audio Visual Revised language in section 3.3.1.1 C.

N/A OPR 26 Telecommunications and Audio Visual Revised OPR.

N/A OPR 31 Specifications Criteria Added to Attachment D Standard Extra Material (Spare

Parts).

N/A OPR 31 Specifications Criteria Aligned content with OBO Deliverable Requirements.

OPSR 1 – OBO CODES | FY26

J.2.1

OBO International Building Code

OBO-ICS IBC

FY26

October 1, 2025

OBO BUILDING CODE TABLE OF CONTENTS

OBO-International Codes Supplements (ICS) 2025-10-01 Amendments to the International Building Code (IBC) United States Department of State IBC TOC - 1

TABLE OF CONTENTS

OBO Supplement to 2024 INTERNATIONAL BUILDING CODE (IBC)

The OBO International Building Code Supplement adopts the 2024 International Building Code (IBC) and amends its provisions on a chapter-by-chapter basis. Chapters are listed below as adopted with no amendments, amended, or not adopted, as described. Sections named in the chapters below are amended or added by this supplement Remaining (unnamed) sections are adopted with no amendments, or not adopted, as described. Appendices are adopted, amended, added or not adopted as indicated.

CHAPTER 1 SCOPE AND ADMINISTRATION

101 General 102 Applicability 103 Authority Having Jurisdiction 104 Alternative Means of Compliance and Equivalencies 105 Permits 106 No amendments 107 Design Submittal Standards 108 Temporary Structures, Equipment and Systems 109 Not adopted 110 Not adopted 111 Certificate of Occupancy 112 Service Utilities 113 Not adopted 114 Not adopted 115 Not adopted 116 Not adopted

CHAPTER 2 DEFINITIONS

201 General 202 ICC Definitions 203 OBO Terms and Abbreviations

CHAPTER 3 OCCUPANCY CLASSIFICATION AND USE

301 No amendments 302 No amendments 303 Assembly Group A 304 – 309 No amendments 310 Residential Group R 311 No amendments 312 No amendments

CHAPTER 4 SPECIAL DETAILED REQUIREMENTS BASED ON OCCUPANCY AND USE

401 No amendments 402 Not adopted 403 - 405 No amendments 406 Motor-vehicle-Related Occupancies 407 No amendments

Amendments to the International Building Code (IBC) United States Department of State IBC TOC - 2

408 Not Adopted 409 No amendments 410 No amendments 411 Not Adopted 412 No amendments 413 No amendments 414 Hazardous Materials 415 No amendments 416 No amendments 417 Not adopted 418–427 No amendments 428 Not adopted 429 Physical Security 430 Information Technology 431 Technical Security 432 Staff Housing 433 Representational Housing

CHAPTER 5 GENERAL BUILDING HEIGHTS AND AREAS

501 – 504 No amendments 505 Mezzanines, Equipment Platforms and Catwalks 506 No amendments 507 No amendments 508 Mixed Use and Occupancy 509 No amendments 510 No amendments

CHAPTER 6 TYPES OF CONSTRUCTION

No amendments

CHAPTER 7 FIRE AND SMOKE PROTECTION FEATURES

701 No amendments 702 No amendments 703 Fire-Resistance Ratings and Fire Tests 704 No amendments 705 Exterior Walls 706 No amendments 707 Fire Barriers 708 – 715 No amendments 716 Opening Protectives 717 Ducts and Air Transfer Openings 718 – 722 No amendments

CHAPTER 8 INTERIOR FINISHES

801 No amendments 802 No amendments 803 Wall and Ceiling Finishes 804 Interior Floor Finish 805 – 807 No amendments 808 Acoustical Ceiling Systems

United States Department of State IBC TOC - 3

CHAPTER 9 FIRE PROTECTION AND LIFE SAFETY SYSTEMS

901 No amendments 902 No amendments 903 Automatic Sprinkler Systems 904 No amendments 905 Standpipie Systems 906 Portable Fire Extinguishers 907 Fire Alarm and Detection Systems 908–910 No amendments 911 Fire Command Cente 912 No amendments 913 Fire Pumps 914–918 No amendments

CHAPTER 10 MEANS OF EGRESS

1001-1003 No amendments 1004 Occupant Load 1005 Means of Egress Sizing 1006-1008 No amendments 1009 Accessible Means of Egress 1010 Doors, Gates and Turnstiles 1011 Stairways 1012 No amendments 1013 Exit Signs 1014 Handrails 1015 Guards 1016 No amendments 1017 Exit Access Travel Distance 1018-1023 No amendments 1024 No amendments 1025 Luminous Egress Path Markings 1026 No amendments 1027 No amendments 1028 Exit Discharge 1029 No amendments 1030 No amendments 1031 Emergency Escape and Rescue 1032 No amendments

CHAPTER 11 ACCESSIBILITY

1101 General 1102-1112 Not adopted

United States Department of State IBC TOC - 4

CHAPTER 12 INTERIOR ENVIRONMENT

1201 No amendments 1202 No amendments 1203 Temperature Control 1204 No amendments 1205 No amendments 1206 Sound Transmission 1207 No amendments 1208 Interior Space Dimensions 1209-1211 No amendments

CHAPTER 13 ENERGY EFFICIENCY

1301 General

CHAPTER 14 EXTERIOR WALLS

1401 General 1402 Performance Requirements 1403 Materials 1404-1406 No amendments 1407 Exterior Insulation and Finish Systems (EIFS) 1408-1412 No amendments 1413 Exterior Wall Maintenance Equipment Requirements

CHAPTER 15 ROOF ASSEMBLIES AND ROOFTOP STRUCTURES

1501-1505 No amendments 1506 Materials 1507 Requirements for Roof Coverings 1508–1512 No amendments

CHAPTER 16 STRUCTURAL DESIGN

1601 General 1602 No amendments 1603 Construction Documents 1604 General Design Requirements 1605 Load Combinations 1606 No amendments 1607 Live Loads 1608 Snow Loads 1609 Wind Loads 1610–1612 No amendments 1613 Earthquake Loads 1614 No amendments 1615 Tsunami Loads 1616 No amendments 1617-1620 Reserved 1621 Seismic Design Requirements for Nonstructural Components 1622 Seismic Design Requirements for Seismically Isolated Structures 1623 Seismic Design Requirements for Structures with Damping Systems 1624 Blast Analysis and Design

United States Department of State IBC TOC - 5

CHAPTER 17 SPECIAL INSPECTIONS AND TESTS

1701–1703 No amendments 1704 Special Inspections and Tests, Contractor Responsibility and Structural Observation 1705–1709 No amendments

CHAPTER 18 SOILS AND FOUNDATIONS

1801 General 1802 No Amendments 1803 Geotechnical Investigations 1804 No amendments 1805 No amendments 1086 No amendments 1807 No amendments 1808 Foundations 1809 No amendments 1810 Deep Foundations

CHAPTER 19 CONCRETE

1901 General 1902 Coordination of Terminology 1903 Specifications for Tests and Materials 1904 Durability Requirements 1905 No amendments 1906 No amendments 1907 Slabs-On-Ground 1908 No amendments 1909 Concrete Quality, Mixing and Placing 1910 Details of Reinforcement 1911 Joint Requirements 1912 Modifications to ACI 318M

CHAPTER 20 ALUMINUM

No amendments

CHAPTER 21 MASONRY

CHAPTER 22 STEEL

2201 General 2202 Structural Steel and Composite Structural Steel and Concrete 2203 No amendments 2204 Cold Formed Steel 2205–2214 No amendments

CHAPTER 23 WOOD

2301 General 2302–2309 No Amendments

CHAPTER 24 GLASS AND GLAZING

2401 No amendments

United States Department of State IBC TOC - 6

2402 No amendments 2403 General Requirements for Glass 2404 No amendments 2405 Sloped Glazing and Skylights 2406–2409 No amendments 2410 Blast Resistance Requirements

CHAPTER 25 GYPSUM BOARD, GYPSUM PANEL PRODUCTS AND PLASTER

No amendments

CHAPTER 26 PLASTIC

No amendments

CHAPTER 27 ELECTRICAL

No amendments

CHAPTER 28 MECHANICAL SYSTEMS

No amendments

CHAPTER 29 PLUMBING SYSTEMS

2901 No amendments 2902 Minimum Plumbing Facilities 2903 No amendments 2904 Emergency Showers & Eyewash Stations 2905 Irrigation of Interior Planting

CHAPTER 30 ELEVATORS AND CONVEYING SYSTEMS

3001 General 3002 Hoistway Enclosures 3003 Emergency Operations 3004 – 3009 No amendments

CHAPTER 31 SPECIAL CONSTRUCTION

3101 – 3104 No amendments 3105 Awnings and Canopies 3106 No amendments 3107 Signs 3108 No amendments 3109 Swimming Pools, Spas and Hot Tubs 3110–3112 No amendments 3113 Relocatable Buildings 3114 No amendments

CHAPTER 32 ENCROACHMENTS INTO THE PUBLIC RIGHT-OF-WAY

No amendments

CHAPTER 33 SAFEGUARDS DURING CONSTRUCTION

No amendments

United States Department of State IBC TOC - 7

CHAPTER 34 PHYSICAL AND TECHNICAL SECURITY REQUIREMENTS

3401 Administration 3402 Definitions & Abbreviations 3403 Physical and Technical Security l Requirement Table 3404 Primary (On-Compound) Facility Requirements: Chancery and Consulate 3405 Satellite (Off-Compound) Facility Requirements: USG as Sole Occupant 3406 Satellite (Off-Compound) Facility Requirements: Tenant of Commercial Office (TCO) 3407 Satellite (Off-Compound) Facility Requirements: Residential Housing (Multi-family) and Recreational (REC) Compounds 3408 Satellite (Off-Compound) Facility Requirements: Specially Designated Residences

(SDR), Representational Residences and Staff Housing (SDA) 3409 Satellite (Off-Compound) Facility Requirements: Support Facilities and Unclassified

Warehouse (WHE) 3410 Satellite (Off-Compound) Facility Requirements: American Broadcast Bureau (ABB)

Relay Station 3411-3419 Reserved 3420 Special Use and Occupancy

CHAPTER 35 REFERENCED STANDARDS

Adopted with amendment

APPENDIX A Not adopted

APPENDIX B Not adopted

APPENDIX C Not adopted

APPENDIX D Not adopted

APPENDIX E Not adopted

APPENDIX F RODENT PROOFING

No amendments

APPENDIX G FLOOD-RESISTANT CONSTRUCTION

No amendments

APPENDIX H SIGNS

H101– H104 Not adopted H105 Design and Construction H106 Electrical H107 Not adopted H108 Animated Devices H109 Not adopted H110 Roof Signs H111 Not adopted H112 Not adopted H113 Marquee Signs H114– H116 Not adopted

United States Department of State IBC TOC - 8

APPENDIX I PATIO COVERS

APPENDIX J GRADING

J101 – J105 Not adopted J106 Excavations J107 Fills J108 – J111 Not adopted

APPENDIX K Not adopted

APPENDIX L EARTHQUAKE RECORDING INSTRUMENTATION

No amendments

APPENDIX M TSUNAMI-GENERATED FLOOD HAZARD

No amendments

APPENDIX N Not adopted

APPENDIX O Not adopted

APPENDIX P Not adopted

APPENDIX Q – V Reserved

APPENDIX W CORROSION-RESISTANT CONSTRUCTION

W101 General W102 Referenced Corrosion-Resistant Requirements W103 Corrosion Mitigation

APPENDIX X PHYSICAL SECURITY REFERENCE MATERIAL

X101 General Attachment X1 Climb-Resistance Diagrams and Criteria Attachment X2 Building Separation Diagrams Attachment X3 Forced Entry Decorative Grille Criteria Attachment X4 Permitted Locations for Office Compound Underground Parking

APPENDIX Y SECURITY DETAILS FOR BUILDING CONSTRUCTION

Y101 General

APPENDIX Z DESIGN CRITERIA FOR SECURITY LIGHTING

Z101 General

END OF IBC TABLE OF CONTENTS

OBO BUILDING CODE ADMINISTRATION

Chapter 1

United States Department of State IBC 1 - 1

CHAPTER 1

SCOPE AND ADMINISTRATION

Delete section title and replace with the following:

SECTION 101

GENERAL

Delete and replace Section 101.1 with the following:

101.1 Title. The OBO Building Code, herein referred to as “this code” adopts the 2024 International Building Code (IBC) as amended by the OBO International Building Code Supplements (OBO-ICS IBC).

101.1.2 Model Code Supplements. Supplements to the International Building Code prepared by the International Code Council are not adopted by OBO. The version dated August 2023 is adopted.

101.1.3 Additional model codes adopted and amended by OBO. OBO adopts the following additional model codes as amended by the 2026 OBO International Code Supplements (OBO-ICS).

101.1.3.1 OBO Existing Building Code. The OBO Existing Building Code adopts the provisions of the 2024International Existing Building Code (ICC IEBC) version dated August 2023 as amended by the OBO International Existing Building Code Supplements (OBO-ICS IEBC).

101.1.3.2 OBO Fire Code. The OBO Fire Code adopts the provisions of the 2024 International Fire Code (ICC IFC) version dated October 2023 as amended by the OBO International Fire Code Supplements (OBO-ICS

IFC).

101.1.3.3 OBO Mechanical Code. The OBO Mechanical Code adopts the provisions of the 2024 International Mechanical Code (ICC IMC) version dated May 2024 as amended by the OBO International Mechanical Code Supplements (OBO-ICS IMC).

101.1.3.4 OBO Plumbing Code. The OBO Plumbing Code adopts the provisions of the 2024 International Plumbing Code (ICC IPC) version dated June 2023 as amended by the OBO International Plumbing Code Supplements (OBO-ICS IPC).

101.1.3.5 OBO Residential Code. The OBO Residential Code adopts the provisions of the 2024 Residential Code (ICC IRC) version dated May 2024 as amended by the OBO International Residential Code Supplements (OBO-ICS IRC).

101.1.3.6 OBO Swimming Pool & Spa Code. The OBO Swimming Pool & Spa Code adopts the provisions of the 2024 International Swimming Pool & Spa Code (ICC ISPSC) version dated July 2023 as amended by the OBO International Swimming Pool & Spa Code Supplements (OBO-ICS ISPSC).

101.1.3.7 OBO Zoning Code. The OBO Zoning Code adopts the provisions of the 2024 International Zoning Code (ICC IZC) version dated July 2023 as amended by the OBO International Zoning Code Supplements

(OBO-ICS IZC).

101.1.3.8 OBO Electrical Code. The OBO Electrical Code adopts the 2020National Electrical Code (NFPA- NEC) Effective date 8/25/2019 including Amendments 1-17 dated 4/12/2022as amended by the OBO National Electrical Code Supplements (OBO-ICS NEC).

United States Department of State IBC 1 - 2

101.1.3.8.1 NFPA supplements. NFPA supplements to the NEC are not adopted by OBO.

101.1.3.9 OBO Telecommunications Code. The OBO Telecommunications Code developed and adopted by OBO is referred to as the OBO-OTC.

101.1.4 Additional model codes adopted without amendment by OBO. The following International Code Council Codes are adopted without amendment by OBO.

101.1.4.1 OBO Fuel Gas Code. Provisions of the 2024 International Fuel Gas Code (IFGC) version dated October 2023 are adopted in full.

101.1.4.2 OBO Private Sewage Disposal Code. Provisions of the 2024 International Private Sewage Disposal Code (IPSDC) version dated July 2023 are adopted in full.

101.1.5 Model codes not adopted by OBO. The following International Code Council Codes are not adopted by

OBO.

101.1.5.1 Provisions of the International Electrical Code (IEC) are not adopted. Refer to Section 101.1.3.8 for the OBO adopted model electrical code.

101.1.5.2 Provisions of the International Energy Conservation Code (IECC) are not adopted except as noted in OBO-ICS IBC Chapter 13 and OBO-ICS IRC Chapter 11.

101.1.5.3 Provisions of the International Property Maintenance Code (IPMC) are not adopted.

101.1.5.4 Provisions of the International Wildland-Urban Interface Code (IWUIC) are not adopted.

101.1.5.5 Provisions of the International Performance Code for Buildings and Facilities (ICCPC) are not adopted.

101.1.5.6 Provisions of the International Green Construction Code are not adopted.

101.1.5.7.Provisions in the appendices in each ICC Model Code shall not apply unless specifically adopted.

The OBO-ICS “Table of Contents” for each code indicates which ICC I-Code Appendixes are adopted and/or amended by OBO.

101.1.6 Code references. All references within this code to other chapters or sections without specific reference to a different code shall refer to OBO-ICS IBC. Where IBC is specifically referenced, it shall mean the ICC model code. Where other codes refer to chapters or sections without a specific code name, it shall refer to chapters or sections within that code as adopted by OBO.

Delete and replace Section 101.2 with the following:

101.2 Scope. The provisions of this code must apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building, structure, or any appurtenances connected or attached to such buildings or structures.

101.2.1 The provisions of this code must apply to all Marine Security Guard Residences (MSGRs).

101.2.2. The provisions of this code must apply to on-compound staff housing not classified as detached one- and two-family staff dwellings or multiple single family staff dwellings (townhouses) not more than three stories above grade plane in height.

101.2.3 The provisions of this code must apply to on-compound and off-compound representational housing in accordance with Section 433.

101.2.4 The provisions of this code must apply to all high-rise housing in accordance with IBC Section 403.

United States Department of State IBC 1 - 3

101.2.5 Detached one- and two-family staff dwellings and multiple single family staff dwellings (townhouses) not subject to blast requirements and not more than three stories above grade plane in height with a separate means of egress and their accessory structures must comply with the OBO Residential Code (OBO-ICS IRC).

Exception. The provisions of this code must apply to on-compound staff housing in accordance with Section

Delete and replace Section 101.4 with the following:

101.4 Referenced codes. The other codes listed in Sections 101.1 and referenced elsewhere in this code shall be considered part of the requirements of this code as prescribed at each such reference.

Add the following Sections 101.5 through 101.7:

101.5 Effective date of the OBO Building Code. The OBO-ICS is effective October 1, 2025.

101.5.1 Limitations of effective code for inactive projects. Projects that have a delay, either planned or unintentional of more than 24 months during any phase of the design, including but not limited to, during bridging, between bridging and design build, during design, or between design completion and the solicitation of offers for construction must be re-evaluated to determine if any design revision is necessary due to changes in criteria (including codes, standards (OBO Project Requirements (OPR)), and specifications) or site infrastructure based on the current edition of the OBO Project Standard Requirements (OPSR) when the design is continued. Note: The evaluation must include the differences between the OBO Project Standard Requirements utilized during the design and the current OBO Project Standard Requirements at the time the design is continued.

101.6 Host country codes and standards. Currently adopted editions and supplements of the Host Country’s local building codes, including zoning requirements and product standards, as of the contract date are also applicable to the building project In cases where the Host Country’s codes and standards are more stringent or conflicting, the contractor must submit an RFI to the Contracting Officer (COR) for resolution.

101.7 Marginal markings indicating updates. Solid vertical lines in the margins within the body of the supplement indicate a deletion, change, or an addition from the technical requirements of the previous edition of the OBO Code.

SECTION 102

APPLICABILITY

Delete and replace Section 102.6 with the following:

102.6 Existing structures. The occupancy of any structure existing on the date of adoption of this code must be permitted to continue without change, except as otherwise specifically provided in this code, the OBO Existing Building Code (OBO-ICS IEBC), or the OBO Fire Code (OBO-ICS IFC), or as is deemed necessary by the Authority Having Jurisdiction (AHJ) for the general safety and welfare of the occupants.

Delete and replace Section 102.6.2 with the following:

102.6.2 Building previously occupied. The occupancy of any structure existing on the date of adoption of this code must be permitted to continue without change, except as specifically covered in this code, the OBO Fire Code (OBO_ICS IFC), or as is deemed necessary by the Authority Having Jurisdiction (AHJ) for the general safety and welfare of the occupants and the public.

Delete and replace section 103 in its entirety with the following:

SECTION 103

United States Department of State IBC 1 - 4

AUTHORITY HAVING JURISDICTION

103.1 Creation of Enforcement Office. The OBO Office of Design and Engineering (OBO/PDCS/DE) shall be the “Authority Having Jurisdiction” (AHJ) unless noted otherwise with the code. The Office Director of the OBO Office of Design and Engineering shall serve as the ‘code official’.

103.2 Appointment. The Office Director of the OBO Office of Design and Engineering shall appoint ‘building officials’ as deemed necessary for enforcement of this code. While final authority rests with the code official, the building official may review and approve technical information on behalf of the AHJ.

103.3 USAID managed property. USAID’s Overseas Management Support Office in the Bureau for Management, USAID/Washington (USAID/W - M/OMS) shall be the Authority Having Jurisdiction for USAID-managed property only.

103.4 Code official. Where used in this code, the term “code official” shall be defined as the “authority having jurisdiction”

103.5 Official Records The AHJ shall keep official records as required by the law or for as long as the building or structure to which such records relate remain in existence.

Delete and replace section 104 in its entirety with the following:

SECTION 104

ALTERNATE MEANS OF COMPLIANCE AND EQUIVALENCIES

104.1 Alternative materials, design and methods of construction and equipment. The provisions of this code are not intended to prevent the installation of any material or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved by the AHJ.

104.1.1 Research reports. Supporting data, where necessary to assist in the approval of materials or assemblies not specifically provided for in this code, must consist of valid research reports from approved sources.

104.1.2 Tests. Whenever there is insufficient evidence of compliance with the provisions of this code, or evidence that a material or method does not conform to the requirements of this code, or in order to substantiate claims for alternative materials or methods, the AHJ shall have the authority to require tests as evidence of compliance to be made without expense to the jurisdiction. Test methods must be as specified in this code or by other recognized test standards. In the absence of recognized and accepted test methods, the AHJ must approve the testing procedures. Tests must be performed by an approved agency. Reports of such tests must be retained by the AHJ for the period required for retention of public records.

104.2 Approval of alternative means of compliance and equivalencies. Alternative means of compliance and/ or equivalencies proposed must be approved by the AHJ prior to incorporation into the Contract Documents.

Requests for approval must include pertinent data required to adequately describe proposed change and all of the following:

Written justification for the deviation from established criteria and demonstration that the proposed alternative solution provides not less than the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability, and safety.

Hazard analysis, compensatory features, comparative cost analyses (first cost and life cycle cost), criteria used.

Lack of funds will not be considered or accepted as justification for an alternate means of compliance.

OBO approval of equivalencies and alternatives is applicable only on a project-specific building-specific basis. Such approval shall not constitute blanket approval for any other case.

United States Department of State IBC 1 - 5

104.2.1 Equivalencies documentation. Complete documentation of approved equivalences must be included in the Issue for Construction design package and provided on the drawings for all submissions including Issue for Construction and As-Built.

104.3 Approved materials and equipment. Materials, equipment and devices approved by the AHJ shall be constructed and installed in accordance with such approval.

104.3.1 Material and equipment reuse. Materials, equipment and devices shall not be reused unless such elements are in good working condition and approved by the AHJ.

SECTION 105

PERMITS

Delete and replace section 105 in its entirety with the following:

105.1 Required. Post or proponent must make application to the Authorities Having Jurisdiction (AHJ) and obtain the required permit for the types of post actions listed below that involve U.S. Government-owned/long-term leased (GO/LTL) real property, regardless of cost or funding source.

105.1.1 Types of projects requiring the issuance of a permit. Post or proponent must obtain a permit prior to commencement of any new construction, renovation, remodeling, or temporary building work. Permits are also required for the following types of projects including, but not limited to:

1. Demolition of structures or other facilities.

2. Interior structural alterations.

3. Interior alterations affecting space functions or design.

4. New, relocated or substantially altered driveways, walls, parking areas, landscaping, or other exterior works.

5. Removal, replacement, or alteration of structural support members, (e.g., beams, trusses, columns, and load-bearing walls, including cutting new openings in load-bearing walls). Replacement of, or alterations to, roof, roof structure, including placement or erection of any structures, equipment, or devices on the roof.

6. Excavation below, or adjacent to, existing buildings and wall foundations. Construction of any facility or placement of any heavy equipment on roofs or on balconies.

7. Repairs due to structural failures, except temporary emergency repairs. Removal, replacement, or alteration of structural support members, (e.g., beams, trusses, columns, and load-bearing walls, including cutting new openings in load-bearing walls).

8. Changes made to any relocatable structure (e.g., modular, prefabricated units or shipping containers), whether occupied or not, to be used for purposes other than their originally intended and authorized use.Excavation below, or adjacent to, existing buildings and wall foundations.

9. Replacement of, or alterations to, roof, roof structure, including placement or erection of any structures, equipment, or devices on the roof.Repairs due to structural failures, except temporary emergency repairs.

10. Construction of any facility or placement of any heavy equipment on roofs or on balconies.

11. Procurement, placement, or construction of relocatable structures, to include modular or prefabricated units, or shipping containers.

12. Alteration of a space which would affect ADA/ABA compliance.

United States Department of State IBC 1 - 6

13. Repairs or modifications to fire protection systems or life safety features.

14. Maintenance, conservation, alteration and/or additions to heritage structures and associated architecturally or culturally significant features.

105.2 Validity of permit. The issuance or granting of a permit must not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or any other ordinance of the jurisdiction. Permits presuming to give authority to violate or cancel the provisions of this code or other ordinances of this jurisdiction shall not be valid. The issuance of a permit based upon construction documents and other data shall not prevent the building official from requiring the correction of errors in the construction documents and other data. The building official is also authorized to prevent occupancy or use of a structure where in violation of this code or of any other ordinances of this jurisdiction.

SECTION 107

CONSTRUCTION DOCUMENTS Delete and replace section 107.1 with the following:

107.1 General. Submittal documents consisting of construction documents, statement of special inspections, geotechnical reports, and other information specific in Section 107 must be submitted. This requirement applies to Post-Managed projects and OBO permitted projects. For all other projects, see individual project deliverable requirements and scopes of work.

Delete and replace section 107.2.1 with the following, but retain the remaining subsections.

107.2.1 Information on construction documents. Construction documents must be of sufficient clarity to indicate the location, nature, and extent of the work proposed and show in detail that it will conform to the provisions of this code as determined by the authority having jurisdiction.

Delete and replace section 107.3 in its entirety with the following:

107.3 Code analysis. The registered design professional shall provide code analysis of the applicable requirements of this code and host country code(s) for each building and for site. Each code analysis must identify the following information at the beginning of the analysis on each discipline drawing set and on any code analysis reports:

1. Identify OBO Project Standard Requirements (OPSR) version used for project: 20XX OBO Project Standard Requirements.

2. Identify Code version required by the OBO Project Standard Requirements used for project: 20XX OBO Code.

3. Identify referenced Codes used for project as identified in Section 101.4 Referenced Codes.

4. Identify the base ICC Code version required for project as identified in Section 101.1 Title.

107.3.1 Analysis format. Analysis format must be consistent with the International Code Council - Plan Review Record for new construction or major renovations / additions.

Exception. Other code analysis forms may be used if approved in advance by the COR.

107.3.2 OBO-unique analysis requirements. Due to OBO security requirements that have unique effects upon life-safety and minimum plumbing facilities in buildings, provide the following code analysis on drawings for all buildings submitted for schematic design and every submittal thereafter:

107.3.2.1 Life safety. Plans must include locations and ratings of fire-resistive construction; occupant loads;

egress components; egress capacities and…