What is Senator Markey's "Stay in Your Lane Act"?

It's a proposed law requiring automakers to limit advanced driving systems to specific, safe operational domains.

How will the "Stay in Your Lane Act" affect Tesla's FSD?

The bill would require Tesla to restrict its Full Self-Driving system to defined road types or conditions it can safely handle.

What are Operational Design Domains (ODDs)?

ODDs are conditions, like specific geographic areas or weather, under which an autonomous system is designed to operate safely.

Home / Technology / Senator Eyes Tesla's Self-Driving on All Roads

Senator Eyes Tesla's Self-Driving on All Roads

18 Dec, 2025

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Summary

A new bill would restrict advanced driving systems to defined operational domains.
The legislation aims to prevent autonomous features from being used on all road types.
It targets companies like Tesla for enabling systems on any road without limits.

Senator Eyes Tesla's Self-Driving on All Roads

Massachusetts Senator Ed Markey has introduced legislation, the "Stay in Your Lane Act," aimed at increasing the safety of autonomous and semi-autonomous driving systems. The bill proposes that automakers must define and adhere to specific "operational design domains" (ODDs) for their advanced driving features. This would restrict vehicles to operate only within predefined geographic or weather conditions for which the technology is engineered.

This legislative push appears primarily directed at Tesla, which has allowed its Full Self-Driving (Supervised) system to be used across a wide range of road types, including city streets and residential areas. The "Stay in Your Lane Act" would compel such companies to limit their systems' deployment to "safer" road environments, thereby preventing potential misuse and accidents.