Product packaging? Where do you see the package for a phone? I haven't seen a box for a phone before I bought it before, even in the 90's when I sold phones at RadioShack they were kept under lock and key. In fact every phone I have purchased in the last 15 years or so has been second hand via eBay or direct from Google and shipped. Even at the Apple store you can't see a package.
I phrased that poorly, I ment "mandatory labeling" rather than physical package.
Screen/battery fixability was a major criteria when selecting my last phone and this was really hard to gauge, I'm hopeful that regulation like this is gonna help.