Continuous Lower Energy, Emissions and Noise (CLEEN) Phase IV Program: Q&A Responses and FINAL SIR Release
Overview
Buyer
Place of Performance
NAICS
PSC
Set Aside
Original Source
Timeline
Qualification Details
Fit reasons
- NAICS alignment with historical contract wins in similar service areas.
- Scope strongly matches core technical capabilities and delivery model.
Risks
- Past performance thresholds may require one additional teaming partner.
- Potential clarification needed on staffing minimums before bid/no-bid.
Next steps
Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.
Quick Summary
The Federal Aviation Administration (FAA) has released the Final Screening Information Request (SIR) for the Continuous Lower Energy, Emissions and Noise (CLEEN) Phase IV Program. This solicitation seeks participants to develop and demonstrate certifiable technologies for civil airplanes aimed at reducing fuel burn, engine emissions, and noise. The program operates under a Cooperative Agreement with a required 1:1 cost share. Proposals are due by May 18, 2026, at 12:00 PM EDT.
Purpose & Scope
The CLEEN Phase IV Program (2026-2028) aims to mature and test certifiable technologies that reduce fuel consumption, engine emissions (NOx, particulate matter), and noise for civil aircraft. The program also supports the development of FAA environmental standards and improves environmental reviews for new aviation technologies. Work involves five elements: Project Management, Design, Fabrication/Procurement/Assembly, Technology Demonstration, and Technology Assessments/Reporting. Proposals may cover a subset of design, build, and test elements.
Contract Details
- Agreement Type: Cooperative Agreement
- Period of Performance: Up to 24 months
- Funding: Minimum 1:1 cost share required (FAA funds up to 50% of total project cost). Total available funding for all projects is $25 million. Contributions can be cash or in-kind, per 2 CFR Part 200. Multiple awards are anticipated.
- Place of Performance: Washington, DC, United States.
Eligibility & Set-Aside
Respondents must be located in, incorporated in, and primarily operate within the United States, with products manufactured substantially within the U.S. While no specific set-aside is designated, the FAA encourages small business participation and intends for at least two cooperative agreements to involve small business concerns. U.S.-based Prime Respondents may utilize non-U.S. partners or subcontractors, with their contributions counting towards the Prime's cost share.
Submission & Evaluation
- Proposal Due: May 18, 2026, 12:00 PM EDT.
- Submission Format: Proposals must be submitted in three volumes: Executive Summary, Technical/Management, Pricing/Business, and Agreement Feedback. Bidders must use the provided "CLEEN IV Technical Summary" Excel template (Attachment 3) to detail proposed projects.
- Evaluation Factors: Proposals will be evaluated based on Technical Merit, Value to the CLEEN Program, Cost/Contribution, and Respondent Capability. Key factors include Corporate Experience (Pass/Fail), CLEEN IV Technology Benefits, and Technology Maturation Plan. Technical/Management (Volume I) is more important than Pricing/Business (Volume II).
Key Clarifications & Attachments
The FAA has released responses to questions from the draft SIR, clarifying several points. The preference for TRL 6 or 7 demonstration has been removed, allowing for more flexible technology maturation plans. Intellectual Property (IP) and data rights will be negotiated, with the Government receiving a limited license in deliverables. The final SIR includes Attachment A (Cooperative Agreement Template) and Attachment 3 (CLEEN IV Technical Summary Excel).