Another 02 Sensor Problem

I have FOUR 02 sensors on my LS-2. Yes, FOUR. I have had the worst time finding a replacement here in Utah. This has been a flippin' nightmare!!!! I cannot pass emmissions without it. My tags are expired. I already got one ticket. Isn't there a law that says the manufacturer has to replace the sensors up to five years because it involves emissions problems? If so where do I find this law...in print? Saturn says no. I ordered a used sensor one from Florida but that was almost two months ago and I still haven't recieved it. AAAHHH!

depends, there is a 8year/80K federally mandated warranty on most emissions related componets. but they only have to replace it if youve failed an emissions test as a result of the componet. why do you think the o2 sensor is bad, and which sensor is it?