CORE LABELS-Whats the diff between the green and white label

[LOWAIRD1964]

So I have used either or in the past and I always get my credits, well most of the time. But what is the real diff between the white and green labels.

[Bravepart]

I believe the white label is bar- coded for each individual part and the green is for the tote so they can tell at the dock they are cores from a distance without having to read the tag.

[LOWAIRD1964]

Both the white and green that I have have bar codes on them. And then there is another green sticker with dealer code and how many packages

[greenthumb-38]

I think I need more information or clarification...

heavy cores vs. light cores ??

this is for core returns to GM ??

~ gt is ??? ???