What Is CA's Law In Regards To Changing Carpets In Rental Apartments?

"I thought if I could get together some information about old carpet vs. Wood floors it could make a more convincing argument."

I wholeheartedly agree that wood floors are much preferable to carpet. I'm not discouraging you from trying to work something out - I'm just saying there is no law regarding it. When working out a plan, take into consideration the wear and maintenance of both. I know for a fact (because I have them) that wood floors are much more difficult and expensive to maintain than carpet. But if you perhaps agreed to pitch in on the maintenance or research finishes to find a long lasting hard wearing finish. Also, sun, dirt, furniture, and moisture can cause extensive and EXPENSIVE damage to wood, (a stain on carpet can be cleaned, a stain on wood floors and the whole floor must be sanded, cleaned with wood bleach or other chemicals, and then refinished). As a landlord, I'm sure he will be aware of that. Its going to be a tough sell, but if you can address all of these concerns, perhaps you can convince him. Good luck!! Hey, let me know how it works out.

Nope. The only law is that your dwelling must be "safe" - i.e. You must have running water, a working heater, locking doors / windows. There is no law that says your carpet must be contemporary.    For the record, they do still make shag carpeting. Also, I'm assuming you saw the apartment before you decided to rent. If you had a problem with it, you shouldn't have moved in. If you didn't see the apartment beforehand, let that be a lesson about taking things sight-unseen.