To use Dwolla with Mt. Gox I need to become Verified. Do I need Apostille?
An apostille is only required for level 2. Their original announcement of the change was confusing, but they have since clarified it on the forum - https://bitcointalk.org/index.php?topic=60074.msg716245#msg716245.

Edit: You also need a bank account linked to your Dwolla account that has been verified over 30 days.