The 3-3-3 rule is a guideline for transitioning a rescue dog into their new home and helping them to settle in. It suggests that the first three days should be used for adjusting to their new surroundings, the next three weeks for training and bonding, and the first three months for continued socialization and training. The 3-3-3 rule provides a roadmap for the adoption process and helps ensure a smooth transition for both the dog and the owner. It also helps set realistic expectations and prevents common mistakes such as overloading the dog with too much too soon. By following the 3-3-3 rule, owners can give their rescue dog the time and support they needs to adjust and become a well-behaved member of the household. The first three days should be used for adjusting to their new surroundings, the next three weeks for training and bonding, and the first three months for continued socialization and training.