They require I put something in the guidelines field. Since this is so writers can subscribe using Submittable, there are no guidelines, but please tell us whether you want to start with the current issue or the next issue. Publication dates:
Winter: January 15
Spring: April 15
Summer: July 15
Fall: October 15
Also: There is no form to fill address through Submittable, so be sure to put that in a cover letter.