Don't need to. It's already marked on the lense.Jeezes, you guys gonna want DOT approval, too?
Next we want tinted -69 300 tail lensesJeezes, you guys gonna want DOT approval, too?
Next we want tinted -69 300 tail lenses
Just send one to somebody in Arizona and have them throw it out in their yard for a couple of weeks in the summer.By the way I did look into an accelerated UV. 10 years would cost me little under 2 Grand sorry I'm going to do it, I will take the manufacturers word for it.