Massachusetts also adopted a similar but less strict version of similar legislation. In addition, New York, New Jersey, Illinois, and other blue states across the U.S. have expressed interest in adopting AB-5–type measures, and former Vice President Joe Biden has endorsed AB-5–type controls.

The Independent Institute submitted the "Open Letter to Suspend AB-5" to California Governor Gavin Newsom and all members of the state legislature. The Open Letter was signed by 153 California economists and political scientists from 40 colleges, universities, and think tanks in the state.

Independent continued its efforts to have AB-5 suspended by filing an amicus brief at the U.S. Court of Appeals for the Ninth Circuit in the "American Society of Journalists and Authors, Inc., et al. v. Xavier Becerra" case, which seeks to alleviate severe economic harm caused by AB-5. The appellants—freelance writers, editors, video- and photo-journalists—have shown that AB-5 infringes their free speech rights. But Independent's brief also demonstrates that AB-5 is an irrational law that draws arbitrary and discriminatory lines through every industry. Simply put, AB-5 cannot withstand constitutional scrutiny—at any level.

In this video the co-authors of the amicus brief, attorneys Krystal B. Swendsboe and Frank H. Chang, discuss the impact of the brief and how this important case seeks to alleviate the severe and unjust economic harms being caused by AB-5.