# Continuous Lower Energy, Emissions and Noise (CLEEN) Phase IV Program: Q&A Responses and FINAL SIR Release

Canonical: https://abierto.us/opportunities/693ka926r00006

- Solicitation number: 693KA9-26-R-00006
- Notice type: Solicitation (first published as presolicitation)
- Status: Closed. Deadline was May 18, 2026 at 12:00 PM EDT
- Department: Department of Transportation
- Agency: Federal Aviation Administration
- Contracting office: 693KA9 Contracting for Services (693KA9)
- NAICS: 541330 Engineering Services
- Product or service code: R425 Engineering and Technical Services
- Place of performance: Washington, District of Columbia
- County: District of Columbia (FIPS 11001). https://abierto.us/counties/district-of-columbia-dc-11001
- City: Washington. https://abierto.us/cities/washington-dc-1150000
- First posted: January 16, 2026
- Last posted: May 8, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/244f9fecd85c49a98ed79698bbc7178d/view

## Description

Friday, May 8, 2026 The FAA Acquisition Office has reposted the FAA's responses to the questions, concerns, and requests submitted regarding the Final SIR on April 13, 2026 without column A. Tuesday, April 28, 2026 The FAA Acquisition Office has posted the FAA's responses to the questions, concerns, and requests submitted regarding the Final SIR on April 13, 2026. Tuesday, March 31, 2026 The FAA Acquisition Office has posted an update to the responses to the questions received following the initial Draft SIR.

These responses are available for review by all interested parties. All other information posted by the FAA Acquisition Office on Monday, March 30, 2026 regarding the Continuous Lower Energy, Emissions and Noise (CLEEN)

**Phase IV Program:** Q&A Responses and FINAL SIR Release remains the same. Monday, March 30, 2026 The FAA Acquisition Office has posted responses to questions received following the initial Draft SIR. These responses are available for review by all interested parties. This announcement serves to inform industry participants of the contract opportunity and to invite offerors to submit proposals for the Final SIR.

All questions, concerns, and requests for clarification regarding the Final SIR must be submitted in writing by 12:00 PM EDT on April 13, 2026. The deadline for proposal submission is 12:00 PM EDT on May 18, 2026. Please ensure you review the Final SIR in its entirety for complete details and requirements.

## Publications

- January 16, 2026: Presolicitation, due February 17, 2026 at 12:00 PM EST. Notice 7c1d51f1aaac40f7a66263f866f80f62. https://sam.gov/workspace/contract/opp/7c1d51f1aaac40f7a66263f866f80f62/view
- March 30, 2026: Solicitation, due May 18, 2026 at 12:00 PM EDT. Notice 901f4b50834b40aab8e82e4bce999117. https://sam.gov/workspace/contract/opp/901f4b50834b40aab8e82e4bce999117/view
- March 31, 2026: Solicitation, due May 18, 2026 at 12:00 PM EDT. Notice eea2b2e369d24a11ad2c698c9cd54072. https://sam.gov/workspace/contract/opp/eea2b2e369d24a11ad2c698c9cd54072/view
- April 28, 2026: Solicitation, due May 18, 2026 at 12:00 PM EDT. Notice 0156bb8636cb426ea9c7f87d09e74f8d. https://sam.gov/workspace/contract/opp/0156bb8636cb426ea9c7f87d09e74f8d/view
- May 8, 2026: Solicitation, due May 18, 2026 at 12:00 PM EDT. Notice 244f9fecd85c49a98ed79698bbc7178d. https://sam.gov/workspace/contract/opp/244f9fecd85c49a98ed79698bbc7178d/view

## Points of contact

- FAA AAQ 460 Contracting Office, 9-AFN-AWA-AAQ460-Contracting-Team@faa.gov

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/693ka926r00006.