Ban-the-Box laws are not everywhere. In places where no Ban-the-Box laws exist (or don’t cover a certain size or type of company), you may still see the criminal history question on a job application.
Additionally, there are differences in the specific requirements of these laws, which means that requirements can vary from one jurisdiction to another.
As of April 2019, 34 states and more than 150 cities and counties have adopted Ban-the-Box laws. In some places, the laws only apply to public sector employers. In other places, both public and private employers must comply. You can find an up-to-date list of Ban-the-Box laws here.