Can an employer legally find out if you have a diploma?

In the US, an employer can legally ask you during the hiring process if you have a diploma (or any other educational and work-related credentials). However, they cannot discriminate against you or refuse to hire you simply because you do not have a diploma. This rule is applicable as long as the requirement for a diploma for the position is not job-related.

However, there are a few exceptions to this general rule:

- The employer can request a diploma if it is required by law.

- The employer can request a diploma if it is reasonably necessary for the job.

- The employer cannot discriminate against you if you have a disability that prevents you from obtaining a diploma.

It is important to note that some states may have additional laws that provide more protection for employees in this regard. It is advisable to consult local laws and regulations for more specific information.