National Intramural-Recreational Sports Association (NIRSA) National Intramural-Recreational Sports Association (NIRSA): Professional organization dedicated to building quality intramural/recreational sports and fitness programs and services. Sponsors annual NCAA Club level national championships in volleyball, soccer and lacrosse. (Intramural) http://nirsa.org/
Additional
Information: Organized sports played among students within the bounds of a single institution.
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