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.
Whelping area and box (see whelping) should be put up in a quiet area (not the kitchen if active) and she should be encouraged to sleep there. For an active kitchen the whelping box can be moved to the kitchen when pups are 3 weeks old. (Large breeds at 2.5 to 3 weeks, and toy breeds at 3.5 to 5 weeks).