U.S. regulators want a federal judge to break up Google to prevent the company from continuing to squash competition through its dominant search engine after a court found it had maintained an abusive monopoly over the past decade.

The proposed breakup floated in a 23-page document filed late Wednesday by the U.S. Department of Justice calls for sweeping punishments that would include a sale of Google’s industry-leading Chrome web browser and impose restrictions to prevent Google-owned Android from favoring its own search engine.

A sale of Chrome “will permanently stop Google’s control of this critical search access point and allow rival search engines the ability to access the browser that for many users is a gateway to the internet,” Justice Department lawyers argued in their filing.

Although regulators stopped short of demanding Google also sell Android, they asserted the judge should make it clear the company could still be required to divest its smartphone operating system if its oversight committee continues to see evidence of misconduct.

The broad scope of the recommended penalties underscores how severely regulators operating under President Joe Biden’s administration believe Google should be punished following an August ruling by U.S. District Judge Amit Mehta that branded the company as a monopolist.

The Justice Department decision-makers who will inherit the case after President-elect Donald Trump takes office next year might not be as strident. The Washington, D.C., court hearings on Google’s punishment are scheduled to begin in April, and Mehta is aiming to issue his final decision before Labor Day.

If Mehta embraces the government’s recommendations, Google would be forced to sell its 16-year-old Chrome browser within six months of the final ruling. But the company certainly would appeal any punishment, potentially prolonging a legal tussle that has dragged on for more than four years.

Besides seeking a Chrome spinoff and a corralling of the Android software, the Justice Department wants the judge to ban Google from forging multibillion-dollar deals to lock in its dominant search engine as the default option on Apple’s iPhone and other devices. It would also ban Google from favoring its own services, such as YouTube or its new artificial intelligence platform, Gemini.

Regulators also want Google to license the search index data it collects from people’s queries to its rivals, giving them a better chance at competing with the tech giant.

Kent Walker, Google’s chief legal officer, lashed out at the Justice Department for pursuing “a radical interventionist agenda that would harm Americans and America’s global technology.” In a blog post, Walker warned the “overly broad proposal” would threaten personal privacy.

The measures, if they are ordered, threaten to upend a business expected to generate more than $300 billion in revenue this year.