University-approved caps, gowns, tassels and hoods must be rented from the "Commencement ... souvenir' or 'keepsake' gowns acceptable attire for commencement. Gown Rental Graduation Packages brochure.

But White Bull said the law supersedes ... including traditional attire, under the graduation cap and gown, and regalia, stoles, and feathers in their tassels. While the staff involved were ...