What state can you buy pseudophedrine without showing an ID?

As of my last update, there are no states in the U.S. where you can purchase pseudoephedrine without showing a government-issued ID. Pseudoephedrine is a regulated substance due to its potential use in the illicit production of methamphetamine, and most states require identification for its purchase. However, regulations can change, so it's advisable to check the current laws in your specific state.