California is the second state to adopt its own net neutrality rules, following Washington. The California Governor Jerry Brown signed the toughest net neutrality bill into law. The law prohibits blocking, speeding up and slowing down websites or whole classes of applications such as videos. The bill goes one step forward prohibiting Internet Service Providers (ISPs) from violating net neutrality by not counting the content and websites they own against subscribers' data caps, which is considered as anti-competitive "zero-rating" practice. Other "zero-rating" plans that don't harm consumers are allowed. The law further bans ISPs from requiring fees from websites and online services in order to prioritize their traffic. California's net neutrality law is set to take effect on 1 January 2019.