If I dispute an item on one credit bureau and it is removed, do they report that to the other 2

Quoting Real Person:
First let me say thanks. Your web site and emails have been a life saver. 549 to 698 and climbing since reading your site and taking action. I think I started in November or December.
If I dispute an item on one credit bureau and it is removed, do they report that to the other 2 credit bureaus and it removed from there as well? Or do I have to dispute on those as well?
Thanks again,
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You must dispute at the other 2 bureaus.
Use the findings you have to dispute with.
Make copies and send them in with your dispute