Headlamp covers on 1999 Cadillac DeVille

Where can I find headlamp covers for a '99 deville and do they have to replaced by a dealer?

Asked by for the 1999 Cadillac DeVille
They are available on eBay, or simply google what you are looking for and there are many part stores that carry them on the internet. If you are mechanically inclined you can do the job yourself, or buy a manual for your car at your local parts store and it will tell you how to fix it.