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Stay in Your Lane Act

USA119th CongressS-3536| Senate 
| Updated: 12/17/2025
Edward J. Markey

Edward J. Markey

Democratic Senator

Massachusetts

Cosponsors (1)
Richard Blumenthal (Democratic)

Commerce, Science, and Transportation Committee

  • Introduced
  • In Committee
  • On Floor
  • Passed Chamber
  • Enacted
This legislation, known as the "Stay in Your Lane Act," aims to enhance the safety of driving automation systems by establishing clear operational boundaries. It requires manufacturers to define an operational design domain (ODD), which specifies the conditions under which their automated driving systems are designed to function safely. These conditions include environmental factors, geographical limitations, and traffic characteristics. Manufacturers are mandated to ensure their driving automation systems strictly adhere to these defined ODDs, preventing operation in conditions for which they were not designed. Furthermore, they must submit their ODD definitions to the National Highway Traffic Safety Administration (NHTSA) and make these declarations publicly accessible on their websites. Violations of these requirements, such as operating outside the defined ODD, will be subject to civil penalties and are explicitly classified as failures to meet a motor vehicle safety standard . The act is set to take effect 180 days after its enactment.
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Timeline
Dec 17, 2025
Introduced in Senate
Dec 17, 2025
Read twice and referred to the Committee on Commerce, Science, and Transportation.
  • December 17, 2025
    Introduced in Senate


  • December 17, 2025
    Read twice and referred to the Committee on Commerce, Science, and Transportation.

Stay in Your Lane Act

USA119th CongressS-3536| Senate 
| Updated: 12/17/2025
This legislation, known as the "Stay in Your Lane Act," aims to enhance the safety of driving automation systems by establishing clear operational boundaries. It requires manufacturers to define an operational design domain (ODD), which specifies the conditions under which their automated driving systems are designed to function safely. These conditions include environmental factors, geographical limitations, and traffic characteristics. Manufacturers are mandated to ensure their driving automation systems strictly adhere to these defined ODDs, preventing operation in conditions for which they were not designed. Furthermore, they must submit their ODD definitions to the National Highway Traffic Safety Administration (NHTSA) and make these declarations publicly accessible on their websites. Violations of these requirements, such as operating outside the defined ODD, will be subject to civil penalties and are explicitly classified as failures to meet a motor vehicle safety standard . The act is set to take effect 180 days after its enactment.
View Full Text

Suggested Questions

Get AI-generated questions to help you understand this bill better

Timeline
Dec 17, 2025
Introduced in Senate
Dec 17, 2025
Read twice and referred to the Committee on Commerce, Science, and Transportation.
  • December 17, 2025
    Introduced in Senate


  • December 17, 2025
    Read twice and referred to the Committee on Commerce, Science, and Transportation.
Edward J. Markey

Edward J. Markey

Democratic Senator

Massachusetts

Cosponsors (1)
Richard Blumenthal (Democratic)

Commerce, Science, and Transportation Committee

  • Introduced
  • In Committee
  • On Floor
  • Passed Chamber
  • Enacted