Underwriting discrimination refers to the lending practices that apply different standards for assessing creditworthiness on the basis of applicants' race, national origin, etc.
The following is an example of a case law on underwriting discrimination:
A mortgage guaranty insurance company shall not discriminate in the issuance or extension of mortgage guaranty insurance on the basis of the applicant's sex, marital status, race, color, creed or national origin. [A.R.S. § 20-1548].