Dr. Seuss is noted for writing stories in meter. For purposes of Program Oral Interpretation (which requires the use of at least two of the recognized genres of literature of prose, poetry, and drama), as well as for our supplemental events of Prose and Poetry, works by Dr. Seuss may be used as either prose or poetry.
Keep in mind that this may not apply to all tournaments. For example, many states have their own specific rules with regard to genres of literature and what is included in each.