Home Buyer, Bristol, PA
That's a really good question ... I would think the answer is yes but I'm really not sure. Perhaps it simply depends on what it says in the lease? Of course, even if they are 'required' - ... these can be the cheapest $5 blinds possible. And if there is no mention of them at all, then your landlord might try and stick you for them when you move out, claiming they were there the whole time. It's best to get everything in writing of course.
I installed nice curtains for the condo that I've been renting (but I'll also be taking them with me to my new house) - and I've got the receipts to prove that I bought them ....