A bill to amend title 49, United States Code, to allow the introduction of certain noncompliant motor vehicle equipment in interstate commerce for testing purposes, and for other purposes.

119th Congress Introduced by Deb Fischer and 1 co-sponsor

The bill allows testing noncompliant motor vehicle equipment in interstate commerce, expanding from whole vehicles to individual equipment items.

Introduced in Senate

Summary of Bill: S.4679 (119th Congress)

Purpose

The bill aims to amend title 49, United States Code, to allow the introduction of certain noncompliant motor vehicle equipment into interstate commerce for testing purposes, and for other related purposes.

Key Provisions

Amends Section 30112(b)(10) of title 49, U.S. Code.

Specifically broadens the scope of what may be introduced into interstate commerce for testing.
The amendment adds explicit permission for introducing:
“an item of motor vehicle equipment” in addition to the previously referenced “motor vehicle.”
The text modifies prerequisites in the matter preceding subparagraph (A) and the language of subparagraph (A) to reflect the inclusion of motor vehicle equipment and items of motor vehicle equipment.

Who/What Is Affected

Entities involved in manufacturing, selling, or importing motor vehicles and motor vehicle equipment.

Testing programs, researchers, or manufacturers seeking to test noncompliant equipment in interstate commerce for development, evaluation, or validation purposes.

The change clarifies that not only motor vehicles but also individual items of motor vehicle equipment may be introduced for testing in interstate commerce.

Procedural/Timeline Aspects

Introduction and passage status:

Introduced in the Senate on June 3, 2026, by Senator Peters, with Senator Fischer as a co-sponsor.
Referenced to the Committee on Commerce, Science, and Transportation.

There is no additional timeline or effective date provided in the current text; the bill would proceed through the standard committee and legislative process if advanced.

Practical Impact and Considerations

The bill creates a formal statutory allowance for testing noncompliant motor vehicle equipment in interstate commerce, expanding testing flexibility beyond whole motor vehicles to include individual pieces or items of equipment.

This could facilitate more robust testing, validation, and development processes for noncompliant components, potentially accelerating safety-related research or evaluations.

As the bill hinges on “testing purposes,” it is important to monitor for any accompanying regulatory or compliance requirements (e.g., conditions, protections, or safety oversight) that may accompany such testing in practice, though those specifics are not detailed in the current text.

If you’d like, I can compare this proposal to current statutory language or provide a brief risk/benefit assessment based on typical testing exemptions and safety considerations.