In my area of the United States, we tend to say House Rules or Family Rules. While Home Rules is not technically incorrect, it is not as popular in my area.

I think "house rules" sounds the most natural. "Family rules" might emphasize how someone is supposed to interact with the family, as opposed to "house rules," which may emphasize how someone is supposed to act while in the house or while a member of the house. "Home rules" will most likely also be understood in context, but I think it sounds the least natural. Hope that helps!

Thank you, Leon!!

the house rules covers the widest area of things for members of the family...and guests that stay for a while...usually overnight, like taking your shoes off when you come in or turning off the lights when you leave the room etc. it can also cover curfew and behaviour like making noise etc. family rules" is not as common but sounds more like behaviour issues to me rather than house rules which covers both behaviour and house maintenance. . "home rules" sounds awkward to me.