San Francisco (CNN Business) The Department of Justice said it is filing a lawsuit against the state of California over its new net neutrality protections, hours after Gov. Jerry Brown signed the bill into law on Sunday.

The California law would be the strictest net neutrality protections in the country, and could serve as a blueprint for other states. Under the law, internet service providers will not be allowed to block or slow specific types of content or applications, or charge apps or companies fees for faster access to customers.

The Department of Justice says the California law is illegal and that the state is "attempting to subvert the Federal Government's deregulatory approach" to the internet.

"Under the Constitution, states do not regulate interstate commerce—the federal government does," Attorney General JeffTropical Storm Beryl forms, expected to weaken before hitting Caribbean

Doyle Rice | USA TODAY

A tropical depression strengthened into Tropical Storm Beryl on Thursday afternoon, the National Hurricane Center said.

As of 5 p.m. ET Thursday, Beryl had winds of 50 mph and was moving to the west at 16 mph. It was located about 1,295 miles east-southeast of the Lesser Antilles, a chain of islands in the eastern Caribbean Sea.

Beryl is a tiny tropical storm, as tropical-storm-force winds extend only out to 35 miles from the storm's center.

Although the storm could briefly become a hurricane, it should fall apart by the time it reaches the Lesser Antilles. That's due to strong wind shear, dry air and dust, which should all combine to weaken the system, AccuWeather said.

"Upper-level winds will