I mean, if you want to have access to all of the court opinions interpreting a law (which is arguably more important because some decisions completely change what laws actually do) you're going to be paying Thompson Reuters or somebody else like that a monthly subscription fee for the privilege pretty much everywhere in the US. Being able to know in a really detailed and specific way what is and isn't legal is absolutely paywalled in this country.

South Carolina actually appears to be the most restrictive, but it's just as likely in Georgia as well.

That's how it works for international standards, like for devices and machines. Wanna build something? Follow the standard! Want to know the standard? You've got to pay!