https://www.techdirt.com/articles/20180306/07151139364/rhode-island-law-would-mandate-porn-filters-charge-you-20-per-device-to-bypass-them.shtml

Rhode Island lawmakers are proposing a new law (pdf) that would force ISPs to filter pornography and other "patently offensive material." It would then force state residents interested in viewing porn to pony up a one-time $20 "digital access fee" to whitelist the internet's naughty bits for each internet-connected device in the home, the money purportedly going toward helping combat human trafficking. ISPs would be required to build entire new support systems (on their dime) to help combat porn, and would face fines of $500 for each instance of offensive content that ISPs failed to censor.

The bill is worded vaguely enough to suggest that hardware vendors could also be held liable if they failed to help censor said "patently offensive" material: