California now has a law that requires browsers to have an opt-out setting (effective in 2027) [1]. So far, websites are required to respect opt outs via browser settings or extensions in California, Connecticut, and Colorado [2]. That is also the case for New Jersey [3].

[1] https://legiscan.com/CA/text/AB566/2025.

[2] https://portal.ct.gov/ag/press-releases/2025-press-releases/....

[3] https://www.njconsumeraffairs.gov/ocp/Pages/NJ-Data-Privacy-....