Weighted/Non-weighted GPA used to determine merit scholarship?

My son is applying to UAH and based on his GPA and test scores, he is eligible for 100% tuition Scholorship. My questions is, I read somewhere that UAH used weighted or non-weighted GPA to determine eligibility… does anyone know if that is correct? Thank you!

When my DD applied last year and when we visited last November it was stated to us “The highest GPA listed on the transcript”. My DD’s school listed weighted, she earned the top scholarship based on her weighted GPA.