I think a big part of these interminable arguments about tabs is based on people using the same words to mean different things. In the following, I'm trying to avoid espousing my personal religion here, I just thought it would be good to try and explain the various sects. Anyway.
Puppies may be placed in new homes once they are eating well on their own. However, they will be better adjusted and make better pets by staying and interacting with littermates and the Mom-dog until they are at least eight weeks old--older generally is better.
A Corgi puppy must be a minimum of 8 weeks of age before a breeder should allow it to go into a new home situation. Many breeders prefer not to place a pup in their new home prior to 10 -12 weeks of age. Your puppy should be fully weaned, appear healthy and alert and be clearly ready for independence from its mother.