AT&T and Verizon will sign an agreement on Tuesday that will repeal a US federal law that requires broadband providers to treat all online traffic equally.

The companies, along with other companies, will sign the repeal bill, known as the Open Internet Order, on Capitol Hill.

The repeal of the federal net neutrality law would mean that broadband providers would be able to throttle and slow websites for any reason, including to improve network performance or increase advertising revenue.

The law has sparked a legal battle between internet providers and the Trump administration.

The Open Internet Act, signed by President Donald Trump in 2015, bars broadband providers from blocking or slowing content or speeding up access to it.

It requires broadband companies to treat internet users equally, including by providing equal service.

The Obama-era law was the centerpiece of a campaign by the tech industry to stop what it saw as a massive concentration of power in the hands of a few large companies and to give consumers more choice.

But with a Trump presidency poised to take office in January and the election in November looming, some consumer advocates say the repeal of net neutrality will leave too many Americans vulnerable.

“It is a victory for consumers, and it’s a victory that will help build a stronger economy,” said David Siegel, an analyst at the non-partisan consumer advocacy group Public Knowledge.

The Trump administration said Tuesday that it was not going to seek court intervention in the repeal, but the legislation is expected to be signed by Trump, Vice President Mike Pence and other administration officials in a matter of days.