California Attorney General Xavier Becerra swiftly criticised the DOJ action saying the Trump Administration continues to ignore the "millions of Americans who voiced strong support for net neutrality rules, California - home to countless start-ups, tech giants and almost 40 million consumers - will not allow a handful of power brokers to dictate sources for information or the speed at which websites load".
"Rather than 50 states stepping in with their own conflicting open internet solutions, we need Congress to step up with a national framework for the whole internet ecosystem and resolve this issue once and for all", the group said in a Sunday statement.
"Under the Constitution, states do not regulate interstate commerce - the federal government does".
California's new law, however, goes farther than even the old FCC rules did in placing restrictions on internet service providers.
Net neutrality vote: Why all the fuss? "And it's a beacon of hope for Internet users everywhere who are fighting for the basic right to express themselves and access information without cable and phone companies controlling what they can see and do online".
Oregon, Washington and Vermont have approved legislation related to net neutrality, but California's measure is seen as the most comprehensive attempt to codify the principle in a way that might survive a likely court challenge.
"Courts have consistently held that when the federal government lacks authority to regulate, it can not preempt states from regulating", said Andrew Schwartzman, a lecturer in public interest law at Georgetown University.
"An agency that has no power to regulate has no power to preempt the states", she said. Consequently, numerous other 25-odd states mulling over passing their own net-neutrality laws are undoubtedly going to keep tabs on the outcome of this trial, making this crucial to the fate of net-neutrality in the U.S. But after howls of outrage online from the grassroots, the bill later passed with all the key protections Since California is the world's fifth leading economy, SB 822 has implications for the entire nation. California fought Trump and Sessions on their immigration lawsuit.