This page is under construction, but eventually I hope to have a comprehensive guide built for the USDA regulations. For now, the links direct to an USDA-APHIS site and discussions on hobbyist forums.
For a disclaimer, please be aware that the forums linked here are active. This means that people can still post inappropriate words and images. I have also not read all of them in their entirety because they are long threads, so there may be some bad language. I did see accurate information within the threads, but it is important to realize that people are arguing both ways about regulations.