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HR 477 119th Congress

MACH Act

To advance scientific research and technology development of hypersonic vehicles, and for other purposes.

Official Title as Introduced Congress.gov

Introduced Jan 16, 2025 Latest action Jan 16, 2025 Sponsor: Rep. Fong, Vince [R-CA-20] Science, Technology, Communications
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Source: Congress.govUpdated 2026-09-20 05:07:02 UTC.

Source-linked procedural record

Bill journey

5 dated records

This is a chronology, not a progress score. Politically.com does not classify stages or infer what comes next. Records sharing a date are grouped because not every source field supplies a time.

Congress.gov Recently refreshed U.S. Senate XML Recently refreshed
Introduction 1 One supplied introduction date.
Official actions 3 3 dated action records.
Committees 1 1 undated relationship.
Amendments 0 No record is cached.
Text versions 1 1 dated, 0 without a supplied date.
House roll calls 0 No exact legislation-key match in the House-vote cache.
Senate roll calls 0 No exact document-key match in the Senate-vote cache.
Related measures 0 No related-measure relationship is cached.
Linked law 0 No linked law record is cached; this does not predict outcome.

  1. Official action Congress.gov

    Referred to the House Committee on Science, Space, and Technology.

    IntroReferral · House floor actions · Code H11100

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    Official action Congress.gov

    Introduced in House

    IntroReferral · Library of Congress · Code Intro-H

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    Official action Congress.gov

    Introduced in House

    IntroReferral · Library of Congress · Code 1000

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    Text version Congress.gov

    Introduced in House

    A dated text-version record is available.

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View the complete bill journey as an accessible table
Every dated cached record linked to HR 477. Same-date row order does not assert procedural sequence.
Date and timeRecordOfficial detailSource
IntroductionIntroduced Introduced in the House. Congress.gov
Official actionReferred to the House Committee on Science, Space, and Technology. No additional detail supplied.IntroReferral · House floor actions · Code H11100 Congress.gov
Official actionIntroduced in House No additional detail supplied.IntroReferral · Library of Congress · Code Intro-H Congress.gov
Official actionIntroduced in House No additional detail supplied.IntroReferral · Library of Congress · Code 1000 Congress.gov
Text versionIntroduced in House A dated text-version record is available. Congress.gov

House roll calls join only on matching Congress, legislation type, and number. Senate roll calls join only on matching source-supplied document type and number, not question text. Committee and related-measure relationships have no date in their relationship records and therefore are counted above but never placed on the chronology.

Congressional Research Service

CRS summary

Introduced in House Jan 16, 2025

Making Advancements in Commercial Hypersonics Act or the MACH ActThis bill permits the National Aeronautics and Space Administration (NASA) to establish a research program to facilitate the testing of high-speed aircraft and related technologies, to be known as the Making Advancements in Commercial Hypersonics Program.Within a specified time period, NASA must develop a strategic plan for such research. NASA must also consult with the Department of Defense and the Federal Aviation Administration on these efforts. Under the program, NASA may not (1) fund the development of hypersonic and related technologies; or (2) enter into an agreement with certain foreign entities of concern, including entities owned or controlled by China, Iran, North Korea, or Russia.

Official documents

Text versions