PoliticalRepoPoliticalRepo

United States · Bill · HR

H.R. 4171 (114th)

Silent Skies Act of 2015

referredUnited States· United States Congress· EN

Introduced

3 December 2015

Last action

Status

Referred to the Subcommittee on Aviation.

Sponsors

Subjects

Discovery layer

Source updated

12 August 2025

Summary

Silent Skies Act of 2015 This bill directs the Federal Aviation Administration to enter into a competitive cooperative agreement with an institution, entity, or consortium to carry out a program for the development of aircraft technology that will assist in-service and in-production civil turbojets not meeting stage 4 noise standards to comply with those or more stringent standards. The Department of Transportation (DOT) must: (1) issue regulations to establish minimum standards to ensure that graduated percentages of civil turbojets weighing over 75,000 pounds comply with the stage 4 noise levels by specified dates, and (2) report annually on the progress made by air carriers in complying with such standards. 100% of such turbojets operating after December 31, 2037, must comply with stage 4 levels. DOT shall request the International Civil Aviation Organization to add to its Work Programme the consideration of international standards for the phase-out of aircraft that do not comply with stage 4 noise levels. The requirements of this Act shall not apply to civil turbojet aircraft that operate outside of the 48 contiguous states. DOT may not issue a type certificate for: (1) a civil turbojet with a maximum weight of more than 75,000 pounds on and after December 31, 2017, unless the applicant demonstrates that such turbojet complies with stage 5 noise levels; and (2) any civil turbojet on and after December 31, 2020, unless the applicant demonstrates that such turbojet complies with stage 5 noise levels.

This text is taken from the official record. PoliticalRepo does not editorialize.

Timeline

No timeline events have been ingested for this record yet.

Votes

No vote records are attached yet.

Versions

No version snapshots stored. Document URLs remain at the source.

Documents

3 official files

Introduced in House (text)

View fileDownload file

Sponsors

No sponsors or actors listed by the source.

Related records

No cross-record relationships stored yet.

Sources

PoliticalRepo is an index and interpretation layer, not the authoritative legal source.