SECTION 3411
ACCESSIBILITY FOR EXISTING BUILDINGS Delete the section in its entirety and replace with the following
3411.1 Scope. Existing DOS buildings and facilities, whether DOS owned or leased, shall conform to accessibility standards in OBO-ICS IBC Section 1101.1.
Exception. No new alterations are required of existing elements or spaces previously constructed or altered in compliance with UFAS or earlier standards issued pursuant to the Architectural Barriers Act of 1968, as amended.
SECTION 3420
PHYSICAL SECURITY FOR EXISTING BUILDINGS Add the following Section:
3420.1 General. The provisions of this section apply to “Existing Office Buildings” (EOB) and “Newly Acquired Buildings” (NAB) for U.S. Diplomatic Mission Buildings overseas.
In most cases the physical security criteria for new construction will apply, however this section addresses the criteria that uniquely applies to EOB and NAB structures. Project Specific approved exceptions will be stated in project scope of work (SOW). The introduction to each of the building types in this section identifies the applicability of requirements. This section identifies physical security requirements for the following building types:
1. Existing Office Building (EOB): A structure or facility is considered an existing office building (EOB) if one of the following criteria is true. [See Section 3420.2 for criteria].
DOS-designed office buildings or compounds which were at the 35% design development stage prior to July 1991.
Office buildings or compound was not designed by DOS and which was acquired through purchase, lease, or other means prior to July 1991.
2. Newly Acquired Building (NAB): A structure or facility is considered a newly acquired building (NAB) if an office building or compound was not constructed by or on behalf of the USG which was acquired by purchase, lease, or other means, subsequent to June 1991. [See Section 3420.3 for criteria].
3. All other structures or facilities are considered New Office Buildings (NOB). Section 3420 would not apply.
3420.2 Definitions
LEGAL CONSTRAINT. Zoning laws and similar ordinances of the host country that may limit the ability to implement the standard criteria. Efforts of post and the host government should be pursued before considering it a legal constraint.
IMPROVEMENT in IBC.
MAXIMUM EXTENT FEASABLE. Criteria should be met. The only exceptions for not complying with the standard should be based on Physical limitations, Legal constraints, or Practicality. All exceptions should be coordinated and verified with OBO. Supporting documentation should be provided.
MAXIMUM EXTENT POSSIBLE. [see MAXIMUM EXTENT FEASABLE]
PHYSICAL LIMITATION. Physical Limitation refers to structural, electrical, and mechanical limitations of the building. It can also apply to setback limitations.
PRACTICALITY. If the cost of meeting standard criteria equals or closely equals the replacement value of the building, the net gain in security over existing condition must be weighed against the threat and the cost.
VULNERABILITY STUDY. When it is impractical t produce a building upgrade to the full extent of the required criteria, the blast vulnerability study will address feasible upgrades that mitigate lesser threats.
3420.3 Existing Office Building (EOB).
3420.3.1 Setback. Setback is the minimum distance a building may be located from the perimeter barrier, as measured from the interior of the perimeter barrier to the building exterior. To the maximum extent possible, provide the following minimum setbacks. Exceptions should be coordinated and verified with OBO. [Supersedes ICS-IZC, Chapter 8, 603.5]
1. 30m setback for office building structures, including annexes.
2. 30m setback for on-compound housing.
3. 6m setback for warehouse (no offices located within).
3420.3.2 Employee Parking. Locate all on compound parking a minimum of 15 m from the exterior of office building(s). [Supersedes ICS-IZC, Chapter 8, 801.2.4, #5]
3420.3.3 Clear Zone. To the maximum extent possible, provide 6 meter clear zone per ICS-IZC 603.7.
Exceptions should be coordinated and verified with OBO.
3420.3.4 Blast. A blast vulnerability study will be required for the following project types to identify specific recommendations and upgrades to mitigate the effects of blast. The approved study by OBO will become the criteria for that specific project. Other project types do not require vulnerability study. [Supersedes ICS-IBC, Chapter 4, 422.2.9.1.2]
1. Major Façade or Window and seismic renovation
2. Major Building Renovations – See Definition of Substantial Improvement 3420.3.5 Building Exterior. Provide 15-minute FE protection for exterior walls of all building that
contain office functions. This applies with 5.0 meters above grade or accessible platform.
[Supersedes ICS-IBC, Chapter 4, 422.2.9.1.1]
3420.1.5.1 Doors. Exterior doors should provide 15 minute FE protection.
3420.1.5.2 Windows. Exterior window or window openings should provide 15 minute FE protection.
3420.1.5.3 Exterior Window Glazing. One of the following applies for major renovations.
1. Exterior laminated windows composed of thermally tempered glazing or heat-strengthened glass.
-- Or –
2. Treat existing glazing with 0.2mm (8MIL) Shatter-Resistant Window Film. (Existing windows only)
Exception: Areas that provide 15-minute FE/BR resistant protection.
3420.3.6 Interior Glazing Type. [Supersedes ICS-IBC, Chapter 4, 422.2.7.1] One of the following applies:
1. Laminated glass composed of thermally tempered glazing or heat-strengthened glass.
-- Or –
2. Treat existing glazing with 0.2mm (8MIL) Shatter-Resistant Window Film.
(Existing windows only)
3420.4 Newly Acquired Building (NAB).
3420.4.1 Setback. Same requirement as NOB [ICS-IZC, Chapter 8, 603.5]
3420.4.2 Employee Parking. Locate all on compound parking a minimum of 15 m from the exterior of office building(s). [Supersedes ICS-IZC, Chapter 8, 801.2.4, #5]
3420.4.3 Clear Zone. Same requirement as NOB
3420.4.4 Blast. A blast vulnerability study will be required to identify specific recommendations and upgrades to mitigate the effects of blast. The approved study by OBO will become the criteria for that specific project. [Supersedes ICS-IBC, Chapter 4, 422.2.9.1.2]
3420.4.5 Building Exterior. Provide 15-minute FE protection for exterior walls of all building that contain office functions. This applies with 5.0 meters above grade or accessible platform. [Supersedes ICS-IBC, Chapter 4, 422.2.9.1.1]
3420.4.5.1 Doors. Exterior doors should provide 15 minute FE protection.
3420.4.5.2 Windows. Exterior windows or window openings should provide 15 minute FE
3420.4.5.3 Exterior Window Glazing. One of the following applies for major renovations.
1. Exterior laminated windows composed of thermally tempered glazing or heat-strengthened glass.
-- Or –
2. Treat existing glazing with 0.2mm (8MIL) Shatter-Resistant Window Film. (Existing windows only)
Exception: Areas that provide 15-minute FE/BR resistant protection.
3420.4.6 Interior Glazing Type. [Supersedes ICS-IBC, Chapter 4, 422.2.7.1] One of the following applies:
1. Laminated glass composed of thermally tempered glazing or heat-strengthened glass.
-- Or –
2. Treat existing glazing with 0.2mm (8MIL) Shatter-Resistant Window Film. (Existing windows only)
END OF CHAPTER IBC-34 AMENDMENTS