Operation and Maintenance (O&M) of Defense Information Systems Network (DISN) Power Plants and Station Battery Systems

Amendment / Modification

• The proposal due date has been extended.

• Original Due Date: February 26, 2026

• New Due Date: March 4, 2026

• Solicitation/Contract Form - Response Due Date

• The deadline for submitting proposals has been extended to March 4, 2026.

Questions & Answers / Clarifications

This document provides clarifications and answers to questions submitted by potential offerors regarding Solicitation FA520926Q0004 for Operation and Maintenance (O&M) of Defense Information Systems Network (DISN).

• Battery Voltage Checks: For Sasebo site, monthly inspections are full inspections. All other sites require 100% battery cell voltage checks every 3 months, consistent with Tokorozawa.
• Fuel Requirements (Owada): The boiler fuel level check at Owada is managed by the Government and not included in this contract. The fuel tank appears to be internally separated for boiler and generator fuel.
• Generator Readiness Test: Clarifies the schedule and type of generator tests (weekly/bi-weekly/monthly no-load and monthly on-load tests) for various sites (Owada, Tokorozawa, Sasebo, MAN shelters). Remote operation is not included.
• HVAC Maintenance: HVAC inspections at Yokota include specific buildings and the Owada FC shelter. The PWS has been updated to reflect this.
• Equipment Lists (Appendix A):
  • GS Yuasa switchgear at Owada has been removed from the PWS.
  • Manufacturer-recommended inspections are the baseline, but some recommendations may be omitted for schedule management and equality of inspection, based on O&M contractor advice.
  • For Owada FC, manufacturer (Toshiba) recommended inspections are acceptable.
  • Tokorozawa service tank and fuel lines are included in the maintenance scope.
  • Specific equipment at Tokorozawa (DC power supply, battery storage, generator panels) are included; manufacturer recommended PMI applies. Telecommunication DC power supply, alarm panel, and oil detectors are NOT included.
• Maintenance Plans: While manufacturer instructions are the baseline, the government may allow for service support plans without annual inspections for equipment other than generators and storage batteries, at the vendor's discretion.
• Fuel Tank Maintenance: Surface preparation, anti-rust treatment, and grounding resistance measurement for fuel tanks are the Government's responsibility, not the contractor's.

These clarifications refine the scope of work, equipment lists, and maintenance requirements, potentially impacting how offerors prepare their proposals and understand their responsibilities.

Amendment / Modification

This amendment modifies the solicitation FA520926Q0004, originally dated January 26, 2026.

Specifically, the Performance Work Statement (PWS) dated July 8, 2025, has been updated. The new PWS is effective from July 8, 2025, to February 17, 2026.

• Performance Work Statement (PWS)

All other terms and conditions of the original solicitation remain unchanged. The amendment does not appear to alter proposal deadlines or submission requirements, but bidders should refer to the updated PWS for any changes in scope or deliverables.

Solicitation / RFP / RFQ

This solicitation is for the Operation and Maintenance of Defense Information System Network (DISN) Power Plants and Station Battery Systems. The contractor shall provide all necessary personnel, supervision, management, tools, equipment, transportation, and materials as described in the attached Performance Work Statement (PWS) to provide these services.

• Operation and Maintenance of DISN Power Plants and Station Battery Systems.

• Services include personnel, supervision, management, tools, equipment, transportation, and materials.

• Specific tasks and requirements are detailed in the attached PWS.

• Contract Type: Firm Fixed Price.

• Period of Performance: Base period from April 1, 2026, to March 31, 2027, with four option periods extending through March 31, 2031.

• Estimated Value: Not explicitly stated, but the NAICS code 811210 has a size standard of USD 34.00.

• Offer Due Date: February 26, 2026, at 08:00 AM.

• Evaluation will be based on a competitive best value source selection.

• Evaluation factors include Price and Past Performance.

• Geographical Qualification: Offerors must provide a CAGE/NCAGE code starting with 'J' (J-type NCAGE) to be considered.

• Past Performance: Offerors must submit a Past/Present Performance Reference List and Past Performance information as specified in Attachments 2 and 3.

• Price Evaluation: Total Evaluated Price (TEP) will be computed, including option prices and a six-month extension factor.

• The acquisition is listed as "UNRESTRICTED."

• Offers must be submitted in Japanese Yen, using whole numbers only.

• Prices for CLINs X007 and corresponding CLINs under option periods will be determined by the Government after award and will not be evaluated.

• The solicitation incorporates FAR 52.212-1, 52.212-4, and potentially 52.212-5 by reference.

Statement of Work (SOW) / Performance Work Statement (PWS)

This Performance Work Statement (PWS) outlines the requirements for the Operation and Maintenance (O&M) of Defense Information Systems Network (DISN) Power Plants and Station Battery Systems.

• Provide all personnel, equipment, tools, vehicles, and materials for the operation, maintenance, and repair of electric generating plants, uninterruptible power supply (UPS) systems, station battery systems, and associated HVAC units.

• Services are required at multiple locations including Owada Communications Station, U.S. Fleet Activities Sasebo, Tokorozawa Transmitter Site, Camp Zama, and Yokota AB.

• Ensure efficient and economical production of electric power and its availability to the Government.

• Perform market surveys and provide cost estimates for equipment repair/replacement.

• Comply with all environmental and occupational standards, including safety laws and regulations.

• Perform preventive maintenance weekly for Owada, Tokorozawa, and Yokota AB Bldg 714; bimonthly for MAN Shelters; and monthly for Zama and Sasebo.

• Manage hazardous materials (HAZMAT) and waste disposal according to established procedures.

• Maintain Government-provided publications and commercial manuals.

• Identify, control, and eliminate potential safety hazards.

• Maintain power plants to meet electric load requirements with proper voltage (+/- 2%) and frequency (+/- 0.5Hz).

• Ensure 95% of scheduled Preventive Maintenance Inspections (PMIs) are properly and timely completed.

• Respond to service calls 100% of the time.

• Submit 100% of reports accurately and 90% of reports on time.

• Complete special repair/maintenance services satisfactorily.

• The PWS covers multiple sites across Japan, including Saitama-ken, Nagasaki-ken, Kanagawa-ken, and Tokyo-to.

• Specific periods of performance are not detailed in this document but are implied to be ongoing for O&M.

• Contractor shall not degrade system capability without specific approval from the Facilities Control Office (FCO).

• A minimum of three (3) days fuel supply must be maintained for continuous generator operation (except for MAN shelters).

• Contractor must develop and maintain a Preventive Maintenance Inspection (PMI) program.

• Contractor shall submit a manning plan and required licenses for on-site technicians.

• Project Manager must have strong English communication skills.

• Contractor shall not employ other country nationals; employees must have US or Japanese citizenship.

Form / Attachment / Pricing Sheet

This document is a Past Performance Questionnaire (PPQ) used by the 374 CONS/PKSA of the United States Air Force at Yokota Air Base, Japan. Its purpose is to gather feedback from organizations that have had direct experience with offerors to evaluate their past performance on contracts or other work efforts. This evaluation is a key consideration in the competitive selection process for the Operation and Maintenance (O&M) of Defense Information Systems Network (DISN) Power Plants and Station Battery Systems.

• Rating Scale: Provides a scale from Exceptional (E) to Unsatisfactory (U) to rate contractor performance based on contractual requirements, problem resolution, and corrective actions.
• Contract Information: Sections for the responding organization to detail the contractor's company, address, prime or subcontract status, title of program/contract, contract number, period of performance, place of performance, services provided, total contract amount, and service scope.
• Respondent Identification: Fields for the company name, name and title of the respondent, contact information, relationship to the project, and length of involvement.
• Questionnaire: Specific questions regarding quality of work, quality control, timely performance, management of issues, and compliance with rules and safety standards. It also asks if the respondent would hire the contractor again.

This questionnaire is sent to entities that have worked with potential bidders. The responses will directly impact the evaluation of a bidder's past performance, which is a critical factor in the source selection process. Bidders should be aware that their past performance will be assessed through these questionnaires.

Solicitation / RFP / RFQ

This document is a "Notice to Offerors" for Solicitation No. FA520926Q0004, concerning the Operation and Maintenance (O&M) of Defense Information Systems Network (DISN) Power Plants and Station Battery Systems at Yokota Air Base. It provides supplemental information to the main solicitation.

• The solicitation is for the procurement of materials related to DISN Power Plants and Station Battery Systems.

• No site survey is scheduled as the requirement is for purchase and delivery of materials only.

• Not explicitly stated in this notice, but it references the main solicitation for details.

• Offer Submission: Electronic copies via email by 26 Feb 2026, 08:00 AM Japan Standard Time (JST).

• Questions Deadline: Written questions in English are due by 16 Feb 2026, 02:00 PM (JST).

• Key Deadlines:

  • Site Visit Attendance Request Form Submission: 28 Jan 2026, 09:00 hrs
  • Gate Pass/Escorting Submission: 26 Jan 2026, 10:00 hrs
  • Pre-Proposal Conference/Site Visit: 12 Feb 2026, 09:00 hrs

• Quotation Preparation:

  • Complete SF 1449 (Blocks 12, 17a, 17b, 30a, 30b, 30c).
  • Complete proposed unit price and extended amount for line items (excluding Item 0007 and "Special Repair/Maintenance Services").
  • Provide remittance address if Block 17b is checked.
  • Complete fill-ins and certifications in provisions and on-line Representations and Certifications at www.sam.gov.
  • Submit Past Performance information (Reference List and Survey).
  • Acknowledge solicitation amendments.
  • Account for a 30-day mobilization and phase-in period if not the incumbent.
  • Provide DUNS Number.
  • Submit payment requests electronically via Wide Area Workflow (WAWF).
  • Enter CAGE/NCAGE code on offer.
  • Register with System for Award Management (SAM).

• Not specified in this notice.

• Pre-Proposal Conference/Site Visit: Mandatory for all prospective offerors. Limited to two participants per offeror. Site visit includes DISN sites at Yokota, Owada, and Tokorozawa.

• Access to Yokota Air Base: Requires submission of an access request form by 28 Jan 2026 (allow two weeks for approval) and valid photo identification. Attendees must arrive 20 minutes prior to the conference start time.

• Payment: Via Wide Area Workflow (WAWF). DFAS-JRIB/JA is the contact for payment issues.

• Clauses/Provisions: Incorporated by reference; full text available upon request or at Acquisition.Gov.

• Points of Contact:

  • Ms. Mio Miyabayashi (Contract Specialist): +81-42-552-3011 / mio.miyabayashi.jp@us.af.mil
  • Mr. Benjamin Warren (Contracting Officer): benjamin.warren.7@us.af.mil

Solicitation / RFP / RFQ

This solicitation is for the operation and maintenance of Defense Information System Network (DISN) Power Plants and Station Battery Systems. The contractor will provide all necessary personnel, supervision, management, tools, equipment, transportation, and materials as described in the attached Performance Work Statement (PWS).

• Operation and Maintenance of DISN Power Plants and Station Battery Systems.

• Provision of all necessary personnel, supervision, management, tools, equipment, transportation, and materials.

• Services include but are not limited to those described in the attached PWS.

• Contract Type: Firm Fixed Price.

• Period of Performance: Includes a Basic Period from April 1, 2026, to March 31, 2027, with four option periods extending through March 31, 2031.

• Estimated Value: Not explicitly stated, but NAICS code 811210 with a size standard of USD 34.00 is provided.

• Offer Due Date: February 26, 2026, at 08:00 AM.

• Evaluation Factors: Price, Past Performance, and Geographical Qualification Requirements.

• Price Evaluation: Offers will be ranked by price, including all option prices. The Total Evaluated Price (TEP) will be calculated based on CLIN quantities, unit prices, and an option to extend services.

• Past Performance: Evaluated based on recent and relevant performance information, including scope, magnitude, complexity, and quality.

• Geographical Qualification: Offerors must provide a CAGE/NCAGE code starting with 'J' to indicate a Japanese location.

• Submission Requirements: Offerors must submit a Past/Present Performance Reference List and Past Performance specified in Attachments 2 and 3.

• This acquisition is unrestricted.

• Offers must be submitted in Japanese Yen.

• Solicitation provisions will be incorporated by reference in the resultant award.

• Specific clauses related to taxes, conciliation, and contractor access to installations are included.

Form / Attachment / Pricing Sheet

This document is the 374 AW (Yokota AB) Access Request form, used to request installation access for personnel. It serves to assist security personnel in registering access for individuals onto the installation, whether for escorted or unescorted visits.

• Sponsor Information: Details about the individual requesting access (rank, name, duty phone, DoW ID, organization, email).
• Access Details: Specifies the type of visit (unofficial, official, escorted, unescorted), location(s) on base, dates and times of access, and the reason for the visit.
• Guest Information: Requires detailed information for each visitor aged 18 or older, including name, date of birth, identification details (type, number, country of issue), address, and citizenship.
• Contractor Information: Fields for contract numbers, event names, and associated POC phone numbers.
• Security and AFOSI Use: Sections for internal tracking and processing by security forces.

This form is relevant to potential bidders who may need to access Yokota Air Base or Tama Hills Recreation Area for official business related to a contract or opportunity. Bidders will need to understand the process for requesting access, including the required lead times for escorted and unescorted visits, and the specific information needed for both the sponsor and the guests. It outlines the procedures for obtaining necessary passes and the types of identification required.

Other / Unclassified

This document is a memorandum from the Department of the Air Force, 374th Airlift Wing, addressed to prospective proposers. It outlines policies and procedures for doing business with the U.S. Government.

This document informs potential bidders about key principles governing U.S. Government procurement, including:

• Emphasis on full and free competition.
• Prohibition of collusion and other unfair trade practices.
• Consequences for firms engaging in restrictive practices (rejection of proposals, prohibition from future solicitations).
• Requirement for government personnel to conduct business ethically and above reproach.
• Explanation of the "gratuities" clause, making it illegal to offer or give anything of value to government employees to secure a contract or favorable treatment.
• Encouragement for bidders to report any encountered irregularities.

This information is crucial for bidders to understand the ethical and procedural framework within which they must operate when engaging with the U.S. Government for this opportunity.

Form / Attachment / Pricing Sheet

This document, "Past/Present Performance Reference List," is an attachment to Solicitation No. FA520926Q0004. It is designed to collect detailed information about an offeror's past or present contracts. This information will likely be used by the government to evaluate the offeror's past performance as part of the overall proposal evaluation.

The form requires the offeror to provide specific details for each contract listed, including:

• Name of Contracting Organization
• Point of Contact (POC) information
• Contract number and project title
• Contract Type
• Total contract value
• Performance period
• Description of work performed
• Contracting Officer's name and phone number
• Government Inspector/commercial project manager and phone number
• List of major subcontractors
• Any problems encountered and corrective actions taken
• Rationale supporting the relevance of the contract to the current solicitation

Bidders must accurately and thoroughly complete this form for relevant past or present contracts. The information provided here is critical for the government's assessment of the offeror's capability and experience. Failure to provide complete or relevant information may negatively impact the evaluation of the offeror's proposal.