Architect of the Capitol

Statement of Work

Conservation and Stabilization of the Plaster and Decorative Paint at the

President’s Room Ceiling, S-216

United States Capitol Building

Project #: CB17010A

Mar 9, 2026

President’s Room Ceiling, Room S-216

Page: 2 of 17

1.0 Conservation and Stabilization of the Plaster and Decorative Paint Statement of Work for President's Room Ceiling Restoration, United States Capitol (USC)

1.1 Background:

Established as a permanent office in 1876, the Architect of the Capitol has provided permanent authority for the care and maintenance of the United States Capitol based on Section 1811 of Title 2 of the United States Code. The Architect is responsible for the maintenance, operation, development, and preservation of 18.4 million square feet of buildings and more than 580 acres of land throughout Capitol Hill. This includes the U.S. Capitol, House and Senate office buildings, the U.S. Capitol Visitor Center, the Library of Congress, the Supreme Court of the United States, the U.S. Botanic Garden, the Capitol Power Plant, and other facilities. The Architect also provides professional expertise regarding the preservation of architectural and artistic elements entrusted to the agency’s care and provides recommendations concerning design, construction and maintenance of the facilities and grounds.

This project concerns the President’s Room located at the U.S. Capitol building; it is an art/ architectural conservation and stabilization project.

The President’s Room, constructed as part of the U.S. Capitol Senate Extension, began in 1851 and completed in 1860. The room serves as a location for Presidents to sign legislation into law and serves as an interview and press conference room. The decorative painting and frescos on the walls and ceiling were designed and painted by Constantino Brumidi in 1859 and completed in early 1860. Born and trained in Rome, Brumidi painted a trial fresco in the Capitol in 1855 and was subsequently employed to decorate various interior spaces of the Capitol Building. The artist signed and dated his work by painting “C. Brumidi 1860” on the spine of a book in the west lunette fresco.

The President’s Room is one of the most decorated rooms in the U.S. Capitol. The ceiling and walls of the room are adorned with frescos, arabesques, and gilded molding. The ceiling design is based on Raphael’s Stanza della Segnatura in the Vatican Palace; it is painted in both secco and fresco painting techniques. As in the style of Italian Renaissance and Baroque murals, Brumidi created the illusion of various materials and three-dimensional forms with paint. The figures in the large ceiling tondos represent Religion, Liberty, Executive Authority, and Legislation. In the ceiling corners are illusionistic niches with symbolic historical figures painted in fresco: Amerigo Vespucci for Exploration, Christopher Columbus for Discovery, Benjamin Franklin for History, and Pilgrim William Brewster for Religion. Painted pairs of cherubs further decorate the ceiling. Framing the frescos are relief borders and medallions comprised of the seals of the states and territories of the time.

The walls of the room are also fully embellished. The south wall lunette contains a portrait of George Washington (copied after the one by Rembrandt Peale in the Old Senate Chamber).

The image of Washington is flanked by figures symbolizing peace and victory. In the oval frames on the lower walls, Brumidi painted portraits of Washington’s first cabinet: Secretary of State Thomas Jefferson, Secretary of Treasury Alexander Hamilton, Secretary of War Henry Knox, and Attorney General Edmund Randolph, as well as Postmaster General Samuel Osgood. The walls are further embellished with cherubs, shields, and leafy trellises on gold

Page: 3 of 17 backgrounds, and still life of fruit set in illusionistic carved moldings.

The 18-arm bronze chandelier, fabricated by the Philadelphia firm of Cornelius and Baker in 1864 for the room, is Rococo revival in design style and contains numerous historical and allegorical figures. The fixture was converted from gas to electricity in 1896 and six (6) additional arms were installed in 1915. The room also retains the original Tennessee marble mantle, Minton tile floors, three (3) large ornate gilded mirrors, and furniture purchased specifically for the room.

In 1921 the plaster around the chandelier failed, destroying the central octagonal fresco. The loss was repaired with new plaster. Based on photographic documentation, a canvas panel with painted cherubs was installed sometime between 1928 and 1964. This was subsequently removed in 1994.

According to the Annual Report of the Architect of the Capitol dated June 30, 1931, a restoration of the ceiling was done to repair damage from a water leak at the northeast corner. The triangular fresco was replaced, and the entire room was cleaned and “gone over and restored to its original condition as near as possible”.

The earliest noted study of the President’s Room referencing the condition of the plaster is the study by Cunningham-Adams, Conservation Treatment Report: President’s Room Ceiling, April 30, 1995. The report documents the investigation and conservation of the ceiling frescos and painting but also reports on the condition of the ceiling plaster and makes recommendations for treatment. Sounding of the plaster of the entire ceiling was conducted, which revealed detachment of the plaster from the brick substrate and other inter-coat bond failure throughout the ceiling. A drawing in the report indicates failure across 80-90% of the ceiling. A network of cracks in the plaster was noted throughout the ceiling and areas of the plaster were identified as being mobile under light finger pressure. The report documents a few areas of approximately five (5) square feet as appearing to have distorted downward but also mentions that this may be an effect of the original construction. Using probing tools, a series of small holes allowed the plaster to be examined; it was found to be as “dry and friable, crumbling into grains of sand”.

The 1/8” finish layer of plaster was cohesive. The report further states that small plates of intonaco (the finish layer of fresco plaster) are in danger of failing. The report includes a recommended treatment program of documentation, testing and monitoring, with treatment of plaster instabilities as determined necessary.

An Advisory Panel was convened on August 17 and 18, 2017, to review and discuss existing conditions and to develop a concept plan for the conservation of the President’s Room (S-216) ceiling plaster at the U.S. Capitol building. Attendees included invited experts in plaster, fresco, and paint conservation and representatives from the office of the Superintendent of the Capitol, the AOC Historic Preservation Officer, the AOC Curator, and the Senate Curator. The participants, both together and individually, reviewed the history of the room, the building construction details, and prior studies and documentation; in addition, panel members performed limited close-up inspection of the ceiling and reviewed and discussed prior treatment recommendations. The Panel then recommended a course of action for further documentation, analysis, and research to create a comprehensive study of the current ceiling condition and to develop a means to methodically track the state of the ceiling. However, the panel did not raise

Page: 4 of 17 alarming bells of imminent plaster failure.

Between the fall of 2023 and the fall of 2024, a contractor was tasked with bringing together a team to evaluate the condition of the President’s Room plaster ceiling and decorative finishes.

Four prior reports written between 1994 and 2018 indicated that the ceiling did not have long-term stability based solely on a relatively simple nondestructive assessment, but it was determined that corroboration based on empirical evidence was needed. The 2023 campaign included an analysis and sampling of the plaster, and probes. Refer to “ICR President's Room Phase 1-4 Final Report 240918” dated September 19th, 2024.

An Advisory Panel comprised of 3 specialists was convened on January 16th, 2024, to review the initial findings and provided recommendations for the final phase of the study. They met again on August 16th, 2024, to review the final report and responded with their comments on next steps.

Based on the findings, it is reported that there was a large-scale detachment present between the brick vault and the plaster in the President’s Room. Below is a summary of the relevant findings:

Drilling Resistance Measurement System (DRMS) was performed at the ceiling, which includes drilling through the plaster ceiling and up to the brick back-up to identify any voids, debonding, or deterioration. Out of 13 testing locations, 6 locations displayed detachment from the brick back-up. Of the 6 locations displaying detachment, there was a complete correlation to areas theorized as detached based on nondestructive evaluation.

Where detachment has been identified between plaster and brick, the voids present were found to be between 2mm and 9mm.

Three samples of plaster were removed from the ceiling and analyzed for composition, proportion of materials, and bond quality between layers. Plaster has been chemically and petrographically analyzed. Analysis and evaluation of the plaster samples indicated that the original plaster mix and application have several features that could make it more vulnerable to damage and deterioration by outside factors such as vibration or moisture. This includes the use of narrowly graded sand, a lack of hair or fiber reinforcement, and the absence of plaster keying into the brick mortar joints.

It was recommended that a ceiling restoration was necessary to prevent any damage to the existing plaster and frescos and maintain safe use of the President’s Room.

1.2 Scope of Work:

The AOC shall engage the services of an Architectural Conservation (AC) Firm to provide design services for ceiling plaster restoration/repair, and implementation of the treatment plan for Room S-216.

The Architectural Conservator, (AC) shall review reference documents, survey the existing conditions, develop design solutions for the conservation and stabilization of the plaster ceiling and decorative finishes and provide a treatment plan, specifications, and a cost estimate for the

Page: 5 of 17 implementation phase of the contract so that the unpriced option can be exercised.

The scope of this procurement is for the Contractor to review previous condition assessments and investigations of the President’s Room ceiling; examine the plaster ceiling and painted/gilded/fresco finishes and update the condition assessments as needed; provide additional paint sampling and/or exposures as required; identify materials and methods for consolidation/stabilization of the plaster; propose materials and methods for protecting painted/gilded/fresco finishes and shoring of plaster ceiling sections during plaster conservation/stabilization; prepare mock-ups, test and evaluate the proposed treatment materials and methods; and based upon testing and evaluation develop treatment and work plans to execute the stabilization of the plaster ceiling and the conservation of the decorative paint finishes.

Services include providing all labor and materials necessary for cleaning, localized consolidation of actively flaking painted/gilded/fresco finishes, paint sampling and making of exposures, temporary protection of painted/gilded/fresco finishes, plaster treatment mockups, in situ testing and assessment of the effectiveness of plaster consolidation/stabilization, implementation of plaster consolidation/stabilization and restoration, after treatment assessment of the effectiveness of the plaster consolidation/stabilization and documentation of all testing, mock-ups, and treatments in an illustrated written completion report. Work is to be completed by June 2028.

Consolidation/stabilization treatment plan and all associated activities will be part of the base contract. Implementation of the treatment plan and final report will be part of an unpriced option to be exercised after the treatment plan’s approval. Engineering services will be part of a priced option to be exercised, if required, after the treatment plan’s approval. Refer to section 1.4 for the project phases and section 2.0 for the contract types.

1.3 Objectives: The objectives for this project are to

1.3.1 Prevent the potential loss of valuable plaster, decorative painting, frescoes, and seccos due to plaster and paint deterioration.

1.3.2 Design a treatment plan to safely adhere the plaster to the masonry vault at locations where delamination has occurred

1.4 Tasks:

The Contractor shall review previous documentation and investigation of the paint and plaster conditions of the President’s Room, assess the condition of the plaster ceiling and related painted/gilded/fresco finishes and consolidate/stabilize the plaster ceiling and the painted/gilded/fresco finishes. The work shall be performed in sequential phases as described below. The work shall consist of: review the reports on previous investigation of condition of plaster and painted/gilded/fresco finishes of the President’s Room ceiling;

recommend additional documentation, testing, paint sampling and exposures if appropriate; update the condition assessment of the painted/gilded/fresco finishes if required; update the plaster condition assessment if required; develop plaster conservation/stabilization treatment plan with a plan for the conservation of the decorative paint finishes; design, build and implement mockups to test the proposed materials and

Page: 6 of 17 methods for plaster conservation/stabilization; develop criteria and methods to evaluate effectiveness of the treatments; test to determine impact on decorative paint finishes;

implement treatment plan for plaster stabilization and conservation of decorative paint, including assessment of effectiveness; assess the effectiveness of the mockup treatments for conservation/ stabilization of plaster; design temporary shoring/supports as needed during treatment; implement plaster ceiling conservation/ stabilization; conduct post plaster conservation/stabilization inspection and assessment of effectiveness of treatment; assess painted/gilded/fresco finishes condition and the effectiveness of treatment and protection;

conduct conservation/restoration of damage to the plaster and painted/gilded/fresco finishes; and prepare draft and final completion reports. Before proceeding to the next phase, all services/requirements must be completed and accepted by the government.

BASE:

1.4.1 Phase 1: Review of Documents

a. Review reports on previous investigations of condition of the plaster and painted/gilded/fresco finishes of the President’s Room ceiling.

b. Provide recommendations for additional testing if appropriate.

c. Update the condition assessment of the painted/gilded/fresco finishes if required.

d. Update the plaster condition assessment if required.

1.4.2 Phase 2: Proposed Conservation Treatment Plan

a. Prepare a Proposed Plaster and Paint Conservation Treatment Plan that describes the documented existing conditions as determined by the 2024 investigation report and previous reports and provides details for treatment of the documented conditions. Each condition noted in the assessment must be addressed by the treatment plan, even if no treatment is recommended. The Proposed Plan shall include a detailed mapping of any additional plaster cracks and documentation of new observed conditions on measured drawings provided and with general and detailed photographs.

b. Identify areas on the ceiling where additional paint samples and/or exposures are recommended to investigate and document representative areas of the original decorative finish layers that have been overpainted or overgilded. Develop the proposed materials and methodologies to be used in extracting and examining samples and in making exposures. [Number of discreet paint samples: 12. Number of exposure window sizes as follows: up to four 2”x 20” exposures; up to twenty 2” x 2” exposures.]

c. Develop the proposed materials and methodologies for plaster conservation/stabilization and the proposed design for mockups, testing, and evaluation of the effectiveness of the materials and methodologies.

d. Develop the proposed painted/gilded/fresco finish consolidation and protection plan.

e. Provide a detailed list of recommended products and procedures, including product data

Page: 7 of 17 sheets. Describe protection, ventilation, and potential adverse reaction requirements, plans and materials.

f. Include criteria and methods for evaluating effectiveness of treatment.

1.4.3 Phase 3: Design and Implementation of Mockups

a. Identify the Mockup Goals, Materials, and Methods for Evaluation

b. Minimally, the mock ups shall determine the efficacy of each proposed treatment material and method, determine the viscosity and flow of the proposed consolidation/adhesion materials and methods for control if needed, determine the locations and extent of consolidation of the friable plaster and for stabilization of loose plaster systems, determine the estimated number and locations for treatment ports, determine the need for and types of support and protection needed during treatment, determine the estimated curing times and required ambient conditions, provide a recommended sequence for the work and determine the means and methods for evaluating and documenting the effectiveness of the treatments.

c. Design and construct mockups to simulate the composition, structure, and condition of the plaster ceiling and test the proposed materials and methods for plaster conservation/stabilization.

d. Prepare mockups of painted/gilded/fresco finishes to test treatments and protection including assessment of effectiveness.

e. The treatments shall not result in damage or discoloration to the painting, gilding or frescos and shall provide long-term stability of the plaster. Treatments shall not alter the existing seasonal expansion and contraction of the brick vaults and plaster systems that occur during the heating and cooling cycles.

f. Provide design and details for the temporary shoring and supports to ensure plaster stability such that the shoring elements shall not place any pressure on the plaster but will only serve as a safety measure in case of local instability.

1.4.4 Phase 4: Final Conservation Treatment Plan

a. Based on the results of the mockups and the evaluation of the proposed materials and procedures, prepare a Final Conservation Treatment Plan.

b. The Conservation Treatment Plan shall include the final materials and procedures to be used for treatment and protection, the temporary protection, shoring and support systems to be installed prior to and during treatment, requirements for environmental systems during treatment, the sequencing for the work and estimated durations, means and methods for after treatment evaluation and documentation.

c. The contractor shall annotate government provided CADD and PDF copies of the ceiling drawings to show areas where the paint and separately the areas where plaster consolidation will be performed.

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OPTION 1:

1.4.5 Phase 5: Conservation Treatment, Documentation and Evaluation

a. Following the approved Conservation Treatment Plan, implement localized in situ plaster conservation/stabilization treatment tests, provide documentation of all treatment locations and post treatment assessment.

b. Update the Final Treatment Plan as needed.

c. Install temporary protection, shoring and supports and environmental controls.

Implement the general conservation/stabilization of plaster ceiling using the tested and approved materials and methods.

d. Implement the painted/gilded/fresco finishes protection, conservation, and documentation and post treatment evaluation.

e. Resurvey all treated areas after materials have fully cured and re-treat where needed to assure adequate stabilization.

1.4.6 Phase 6: Final Conservation Completion Report.

a. Prepare a draft and Final Conservation Completion Report to include documentation of the mockups, the treatment plan, all during treatment modifications, post treatment evaluation and recommendations for any further assessments or treatments.

b. The Final Conservation Report shall compile all documentation, recommended treatment materials and methods, testing and actual treatment materials and methods, final survey of completed treatment and all drawings and photographs.

Recommendations for future care and assessment of the ceiling shall be provided.

c. The Final Conservation Report shall document all the phases of the project and shall be prepared in accordance with AOC Guidelines for Conservation Reports and Photo Documentation.

OPTION 2:

1.4.7 Structural Engineering Services.

a. Provide engineering services from a structural engineer for design of shoring of the plaster ceiling to prevent loss.

2.0 Contract Type:

2.1 Base: Plaster and decorative paint conservation/stabilization Treatment plan- Firm Fixed Price

2.2 Option 1: Implementation of Treatment Plan- to be negotiated once the treatment plan is complete and approved- Firm Fixed Price and Time and Material. UNPRICED OPTION

2.3 Option 2: Structural engineering services for temporary shoring design if needed. - Firm

Page: 9 of 17

Fixed Price. PRICED OPTION

3.0 Key Personnel:

The AC is responsible for identifying key personnel in the technical proposal. Key personnel may only be substituted on the task order with the express approval of the CO.

The Key Personnel are expected to be on-site for the duration of the project and to be present at bi-weekly meetings and briefings as required. The Key Personnel shall have experience in implementing and overseeing painted/gilded/fresco finishes conservation and ceiling plaster consolidation/stabilization. The Key Personnel shall direct and coordinate an interdisciplinary team including painting conservators, plaster conservation specialists, technicians and assistants, historic paint specialists, and a structural engineer. Specific experience requirements are as follows:

3.1 Plaster and Paint Senior Conservators shall have a minimum of twenty (20) years of successful and professional hands-on experience in the design, planning and implementation of conservation treatment of paint and plaster on masonry vaults. (1) Senior plaster conservator experience must include assessment and treatment of multi coat plaster applied directly on masonry vaults. (1) Senior painting conservator experience must include the assessment and conservation of painted, gilded, and fresco surfaces on plaster vaults. Please provide the education, certification, and qualifications of the Proposed Conservators for review and consideration.

3.2 Conservators: The Conservators shall have a minimum Ten (10) years of successful and professional hands-on experience in the conservation of paint and plaster on masonry vaults or similar work of this complexity, visibility and magnitude. Please provide the education, certification, and qualifications of the Proposed Conservators for review and consideration.

3.3 Conservation Scientist: The Conservation Scientist shall have a minimum of Ten (10) years of successful and professional hands-on experience in the conservation of paint and plaster on masonry vaults. Please provide the education, certification, and qualifications of the proposed Conservation Scientist for review and consideration.

3.4 Conservation Technicians: The Conservation Technician shall have a minimum five

(5) years of successful and professional hands-on experience in the handling and use of the proposed conservation materials and methods. Please provide the education, certification, and qualifications, of the proposed Conservation Technician for review and consideration.

3.5 Structural Engineer (OPTION 2): The Structural Engineer shall have a minimum Ten

(10) years of successful and professional hands-on experience in this type of work.

Please provide the education, certification, and qualifications of the proposed Structural engineer for review and consideration.

All reports and the relevant documents should be submitted on an official letterhead of A/C

Page: 10 of 17 and signed by the key personnel.

4.0 Project Requirements:

4.1 General: The Architectural Conservator, (AC) shall review reference documents, survey the existing conditions, develop design solutions for the conservation and stabilization of the plaster ceiling and decorative finishes and provide a treatment plan, specifications, and a cost estimate for the implementation phase of the contract so that the unpriced option can be exercised.

4.2 Kick-Off Meeting: Within ten (10) business days of award, the AC shall meet with the AOC Contracting Officer’s Representative/ Project Manager (COR/PM), Contracting Officer, AOC Curator, and U.S. Capitol Superintendent’s Representative to review the Project Requirements, including the Statement of Work, the Project Schedule, and the Project Budget. AC to verify the schedule and final project requirements.

In addition, within ten (10) business days of the award, an in-person meeting will be conducted with the Architect of the Capitol, Mr. Thomas Austin, to be held at the Capitol Building. The AC Principal, President, Chairman or Director shall attend the meeting with the Architect.

Following the meetings, the AC shall refine the Project Schedule and submit to the COR/PM for approval.

4.3 Project Schedule Submission: Within five (10) business days of award, the AC shall submit their internal Project Schedule (PS) for review. The PS shall include, at minimum, the various planned coordination meetings with sub-consultants and timeframes for QC ahead of submissions to AOC, internal milestone dates, and all AOC Submission dates.

4.4 AOC Client Meeting(s): AC to schedule bi-weekly progress meetings with designated AOC staff and the client to review the project scope, schedule, and budget. Coordinate these meetings through the COR/PM.

4.5 Monthly Invoice Status report:

4.5.1 Draft Monthly Invoice Status Report

AC shall provide a draft monthly invoice that includes photographic documentation and a description and percentage of work completed to the AOC. AC shall only submit monthly invoices if they have performed work in that prior month. AOC will notify AC if revisions are required within 10 days of draft submission.

The draft invoice shall also include a record of any delays caused by either party: the contractor or the Government. The record of each delay shall include: period of the delay, the cause of the delay, the number of days in the delay, the responsible party and the impact on the remaining services to be completed. If there were no delays for that month, then AC shall provide a statement stating such. The Government will review the record of delays and state whether it

Page: 11 of 17 agrees with the assessment. The agreed upon record of delays shall be submitted with the final monthly invoice.

A draft record of delays may look like the following:

Delays for the Month of June 2025

Period of Delay

Cause of Delay # of Days in Delay Responsible Party

Impact on Schedule

June 1 – June 2

Building closure 2 Government This work cannot be completed until the …

4.5.2 Final Monthly Invoice Status Report

AC shall provide a final monthly invoice that includes photographic documentation and a description and percentage of work completed to AOC. AC shall only submit monthly invoices if they have performed work in that prior month. The final monthly invoice shall also include the agreed upon record of delays.

4.6 Program of Requirements: N/A

4.7 Life Cycle Cost Analysis: N/A

4.8 Facilitation of Project Definition Rating Index (PDRI) Sessions: N/A

4.9 Large Project Requirements: N/A

4.10 Hazardous Materials and Waste:

4.10.1 Regulations and Standards: All work shall be performed following local, state and federal regulations, including 29 CFR 1926 (OSHA Construction Industry Regulations), and AOC Specifications.

4.10.2 Training and Accreditation: All personnel working with hazardous materials or waste shall have the appropriate federal and state-required training and accreditation.

Laboratories analyzing hazardous materials or waste samples must have proper accreditation which shall be provided to AOC.

4.10.2.1 Asbestos: Asbestos professionals (e.g., supervisor, inspector, worker) must have training and accreditation by the U.S. Environmental Protection Agency (EPA) and state or district requirements. For projects in Washington, D.C., asbestos professionals must be licensed by the D.C. Department of Energy and Environment (DOEE). Laboratories analyzing asbestos samples must be accredited by the National Institute of Standards and Technology (NIST) National Voluntary Laboratory Accreditation Program (NVLAP).

4.10.2.2 Lead: Lead professionals (e.g., supervisor, inspector, worker) must have training and accreditation in accordance with EPA and state or district requirements. For example, lead professionals must be accredited by MDE for projects in Maryland, by the Virginia DPOR Board for ALHI for projects in Virginia, or by DOEE for projects in Washington, Page: 12 of 17

D.C. Laboratories analyzing lead samples must be accredited by the EPA National Lead Laboratory Accreditation Program (NLLAP).

4.10.3 Hazardous Material Identification: Review existing hazardous material (e.g., asbestos, lead, etc.) analyses provided by the AOC. Prior to beginning conservation work, submit a Safety Work Plan to the COR/PM for review and comment by the AOC’s Office of Safety and Code Compliance (OSCC). The Safety work Plan must be accepted by the COR/PM and AOC’s OSCC prior to the start of work.

4.10.3.1 Survey, Sampling and Analysis Costs: N/A

4.10.3.2 Asbestos: Review existing asbestos analysis provided by AOC.

4.10.3.3 Lead: Review of existing lead analysis completed as part of the previous study

4.10.3.4 PCBs: N/A

4.10.3.5 Crystalline Silica: The AC shall cite and follow OSHA Construction Standard for Respirable Crystalline Silica (29 CFR 1926.1153), which requires preventative steps to limit occupational exposures during construction work.

4.10.4 Abatement: N/A

4.10.5 Hidden Hazards: AC to follow and meet all applicable OSHA codes and requirements

4.10.6 Hazardous Waste: If hazardous waste may be generated during conservation work, the AC is responsible for complying with all provisions as stated in their Safety work Plan and applicable safety documents:

- The Lead Work Requirements for Conservation and Restoration in the U.S. Capitol, 2019

- Requirements for Conservators Regarding the Handling of Hazardous Chemicals, Hazardous Waste, and PCB Wastes at the Capitol Building and CVC, 2019.

4.11 Place of Performance/Hours of Operation: Base scope work will be performed at the AC’s facilities, with occasional meetings on AOC premises or virtually. It is expected that the AC will attend scheduled meetings on Capitol Hill at the US Capitol Building and surveythe project site and conditions, Monday through Friday, during typical business hours (8:30 am to 4:00 pm) with badged personnel. The AC shall visit the project site as often as necessary to gather all the pertinent information needed to render a complete set of Contract Documents that is code-compliant and conveys AOC’s requirements. The implementation scope under Option 1 will take place on the AOC premises Monday through Friday, during typical business hours (8:30 am to 4:00 pm) with badged personnel.

4.12 Period of Performance:

Base contract: 180 calendar days from the date of the award

Option 1: 480 calendar days after execution of a contract modification based on the final negotiated contract value as agreed to by both parties, with completion by June- 30-2028

Option 2: concurrent with Option 1 period

Page: 13 of 17

Activity Dates (to be revised at kickoff meeting)

Anticipated Award Notification 8/20/026

Base Contract

Completion of Pre-Design Activities

(Kick-off meeting, project schedule, and QC Plan)

2 weeks after Award ~XX

AOC + Advisory Panel Review 3 weeks

Existing Data Review

New data collection if necessary

Additional Testing if needed

5 weeks after award

Mockups 4 weeks

AOC + Advisory Panel Review Simultaneous with work

Plaster Conservation Draft Treatment Plan + Time and Cost Estimate

6 weeks

AOC + Advisory Panel Review Funding confirmation

3 weeks

Final Plaster Conservation Treatment Plan

3 weeks

Option 1:

Plaster Conservation 24 weeks

AOC + Advisory Panel Review

Site Visits

Simultaneous with work

Stabilization Completion

Paint Conservation as necessary

24 weeks Not later than June 30, Conservation report 4 weeks

AOC + Advisory Panel Review 4 weeks

Final Conservation report 4 weeks

AOC Acceptance 5 weeks

4.13 Government Furnished Property (GFP): The Government will provide the

Page: 14 of 17 following:

4.13.1 The Architect of the Capitol will provide the Contractor with access to running water and electricity

4.13.2 The Architect of the Capitol will provide scaffolding, furniture and chandelier removal as part of a separate contract to be installed and dismantled based on the overall project schedule

4.13.3 AC shall coordinate with the COR to arrange for dropping off equipment and supplies; storage space for equipment and supplies may be available.

4.13.4 AOC will provide the contractor lifts as necessary for the studies, testing, analysis as part of Option 1

4.13.44.13.5 AOC will provide protection for all walls and floor before scaffolding installation. AC is responsible for protecting the ceiling (scope area) during implementation

5.0 Specific Requirements:

5.1 Privacy Act: N.A.

5.2 Personal Service: N.A. This is not a personal services contract.

5.3 Security:

5.3.1 Sensitive information such as floor plans will be transferred via e-Builder or a secure file sharing platform approved by the Government

5.3.2 In accordance with Clause AOC52.223-5 “Special Security Requirements – Services (October 2021)” of the Contract within 7 calendar days after date of award the AC shall submit to the COR a list of all employees proposed to support this contract. The AC shall comply with all AOC security regulations, policies, and procedures.

5.3.3 Furthermore, in accordance with Clause AOC52.204-4 “Personal Identity Verification of Contractor Personnel (October 2021),” of the Contract, a copy of the E-Verify case details document evidencing “employment authorized” (final verification request) shall be provided with each request for an AOC ID badge. Specify all security considerations / concerns for the project.

5.3.4 The AC shall comply with AOC52.223-3, Security Markings - CUI (March 2017) for all Controlled Unclassified Information (CUI).

5.4 Safety in Design: The AC shall be responsible for the safety of their own personnel and should follow all applicable code and safety requirements. All health and safety hazards must be anticipated and carefully evaluated so that protective measures can be incorporated in the Contract Documents. The AC shall identify the precautions necessary to ensure the protection, safety and health of Congress, staff, building occupants, visitors, contract employees, and prevent the loss of or damage to property and the environment.

5.5 Quality Control: The AC shall develop and maintain a Quality Control (QC) Program for the duration of this design effort. The AC shall submit a Quality Control Plan within ten (10) days

Page: 15 of 17 after award to the COR/PM. The AC shall review all submissions to ensure that all comments have been incorporated and comply with the applicable codes and design criteria. The AC shall provide the Point of Contact who will be responsible for maintaining the quality control program. The AC shall fully engage in implementing quality control measures prior to each submission. If the COR deems that the work does not meet the stated requirements, then the AC shall be responsible for correcting the issue at its own cost until accepted by the COR.

5.6 Records/Data: AOC52.227-2, Unlimited Government Rights (Nov 2004), The Government shall have unlimited rights to work developed in the performance of this contract, including the right to use any portion of it, for the benefit of the Government, to include all drawings, designs, specifications, notes, or other work, without additional cost to the Government. With respect thereto the AC agrees to and does hereby grant to the Government a royalty-free license to all such data to which the contractor may cover by copyright, and to all designs as to which the AC may assert any rights or establish any claim under the design patent or copyright laws.

The AC agrees to furnish and to provide access to all such materials upon request of the Contracting Officer.

5.7 Packaging/Packing/Shipping Instructions: N/A

5.8 Travel Costs:

5.8.1 Travel will be authorized under this requirement if deemed necessary for the performance of the scope. Travel will be awarded as an allowable expense only for travel outside of a 50-mile radius from the worksite and will be included as an established, fixed cost as part of the Firm Fixed Price contract type.

5.8.2 In response to the request for proposal, as part of the Price Proposal, the contractor must provide anticipated travel costs, if any, to include origination; destination;

number of trips; number of people; and a breakdown of lodging, meals, transportation and related costs.

5.8.3 Costs for transportation, lodging, meals and incidental expenses incurred by the Contractor on official company business are allowable and are subject to FAR 31.205-46 Travel Costs and shall be in accordance with AOC52.231-1 Travel Costs (Nov 2004).

5.8.4 These costs will be evaluated as reasonable and allowable only to the extent that they do not exceed daily the maximum per diem rates in effect at the time of travel as set forth in the Federal Travel Regulations (FTR). The Contractor will not be reimbursed for travel and per diem within a 50-mile radius of the worksite.

5.9 Deliverables and Reports: Deliverables shall be in accordance with the requirements of the provisions as defined in section 1.4

5.9.1 Treatment Plan

5.9.2 Conservation Completion Report

5.9.3 Monthly Invoice Status report

5.9.4 Safety Work Plan

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5.9.5 Quality Control Plan

5.10 Delivery Instructions: All deliverables shall be delivered no later than the date specified in the SOW. Electronic deliverables will be transmitted to the AOC via the ebuilder or Kiteworks Systems.

5.11 Inspection and Acceptance: See FAR 52.246-4 Inspection of Services- Fixed Price and FAR 52.246-6 Inspection- Time and Material and Labor Hour

5.12 Procedures for Payment: See AOC52.232-1 Payment Requests (June 2021) and AOC52.232-6 Payment by Electronic Funds Transfer (March 2012).

5.13 Applicable Documents: The AOC has an archive of completed projects. The AC shall coordinate and contact COR/PM to request additional documentation from Records Management Branch, including verifying items that were constructed as detailed in the As- Built Drawings provided. The documents listed below provide general guidance regarding AOC requirements and standard procedures.

- AOC AE Design Manual (December 2013).

- AOC Design Standards (December 2018)

- Policy Memorandum 28-8: AOC Design Standards: Order M-28-8 NFPA Code Year Reference

- American Institute for Conservation of Historic and Artistic Works (AIC) Code of Ethics and Standards of Practice and the Commentaries to the Guidelines for Practice

- AOC Guidelines for Conservators Regarding the Handling of Hazardous Materials/Hazardous Waste (January 2018).

- AOC Preservation Policy and Standards (July 1, 2025)

- AOC Guidelines for Conservation reports and Photo Documentation

- Security Standards (Draft February 2019)

- Use of government equipment agreement

- The Lead Work Requirements for Conservation and Restoration in the U.S. Capitol, 2019

- Requirements for Conservators Regarding the Handling of Hazardous Chemicals, Hazardous Waste, and PCB Wastes at the Capitol Building and CVC, 2019.

- ICR Report Sept 19th, 2024

5.14 Points of Contact:

- Contracting Officer: Troy Dorsey troy.dorsey@aoc.gov, 202.394.9981

- Contracting Officer’s Representative: Ece Kilic, ece.kilic@aoc.gov, 202.258.6554

- Superintendent’s Project Coordinator: Jayashree Shamanna Jayashree.Shamanna@aoc.gov, 202.856.5663

6.0 Definitions & Acronyms: All terms that have meaning other than that contained in a dictionary and task-specific acronyms.

A/E – Architect/Engineer AC- Architectural Conservator

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SOW – Statement of Work FAR- Federal Acquisition Regulation BMP – Best Management Practice CFR – Code of Federal Regulations PCB – Polychlorinated Biphenyl CO – Contracting Officer COR/PM – Contracting Officer’s Representative/Project Manager

7.0 Date of Last Revision:

Date: Revision(s):

3/9/2026 Original version 4/9/26 4.2- Added meeting with Architect of the Capitol

4.13.5- Added wall and floor protection by AOC