What states do not have license plate stickers?

As of my last knowledge update, there are three states in the United States that do not require license plate stickers: Alabama, Arizona, and Arkansas. These states have different methods of tracking vehicle registration and do not use stickers as part of their process. It's important to note that regulations may change, so it's always best to check with the specific state's Department of Motor Vehicles for the most up-to-date information.