Okay, gotcha. As far as I know, all of the schools with a BFA in Costume Design (or Design/Tech) do require a portfolio. The wonderful advantage studying costume rather than fashion design is that the major is within the Theatre department, so the kids are studying theatre, practicing script analysis, and learning to work with the other technicians (lights, sets, etc.) as well as with the actors.
It’s worth spending some time reading the threads, because advice on what schools to investigate is sprinkled throughout the discussions. Here’s one:
It can be useful to peek through the Musical Theatre Majors thread sometimes too.
Your daughter has a good amount of time to put together a portfolio if she wants to go the BFA route. Make sure she takes pictures throughout the process and keeps her sketches, plots, and lists, along with any artistic work she does for fun/outside theatre. Much better to have too much to pull from than too little!