Can you change your major for grad school?

I'm double majoring in art and psychology now, in order to pursue a career in art therapy. in grad school would it be possible for me to change my major to just art therapy? or is that now how it works?

Thanks.Can you change your major for grad school?
Some graduate school programs have specific course requirements, and others don't. It's not a major in grad school - that's the only subject you take classes in, and the department itself decides if you get admitted, not the school. Look up some grad programs for art therapy and make sure you've taken the required courses.