Is it legal to put new carpet over old carpet in NC?

I find nothing in NC law that prohibits this BUT that is not to say that there isn't a local ordinance. https://www.askmehelpdesk.com/real-estate-law/landlord-has-replace-carpet-334480.html

Sadly done way to often, esp if the first carpet is glued down, I have done it once or twice myself ( ashamed to admit)