The FAA Acquisition Office is inviting proposals for the Continuous Lower Energy, Emissions and Noise (CLEEN) Phase IV Program contract opportunity. All questions regarding the Final Solicitation for Requirements (SIR) must be submitted in writing by April 13, 2026. The deadline for proposal submission is May 18, 2026. No specific budget amount or location for performance of services is mentioned in the description. This summary is intended to help prospective bidders assess their interest.

The FAA Acquisition Office has posted responses to questions regarding the Continuous Lower Energy, Emissions and Noise (CLEEN) Phase IV Program, with a Final SIR now released. All questions about 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. No budget amounts or specific performance location are mentioned in the description. This opportunity invites offerors to submit proposals for the Final SIR.

This is an update regarding the Continuous Lower Energy, Emissions and Noise (CLEEN) Phase IV Program, providing responses to questions on the Final SIR. The FAA Acquisition Office has released this information to invite proposals. Questions 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. Interested parties should review the Final SIR for complete details.

The FAA Acquisition Office is inviting proposals for a contract opportunity based on a Final SIR, for which responses to previous questions are now available. All questions regarding the Final SIR must be submitted in writing by 12:00 PM EDT on April 13, 2026. The performance location, budget, and any non-bid timelines are not specified in this description.