yikes.in most U.S.states it is illegal to ask about
Race, color, creed, sex, national origin, age 40 or above, disability, ancestry, pregnancy, off-the-job use of tobacco,
the first 5 are all states the others are dependant on the job type and how many employees(?)in company
some states like california are more detailed
california
Race, religious creed, color, national origin, ancestry, physical or mental disability, medical condition, genetic information, marital status, sex, pregnancy, childbirth, and related medical conditions, breastfeeding, sex, gender identity, gender expression, age 40 and above, sexual orientation, military or veteran status, retaliation
most follow the basics of the cali laws but dont have them"on the books" and the retaliation one is if you were a whistleblower at another job or filed a discrimination claim on an employer