Nebraska Revised Statute 81-8,139
The State Athletic Commissioner shall adopt and promulgate such rules and regulations for the administration and enforcement of sections 81-8,128 to 81-8,142.01 as he or she may deem necessary. Such rules and regulations shall include, but not be limited to, the establishment of written criteria for the granting and revoking of licenses, the setting of license fees, and the qualification requirements for those to be licensed as referees, physicians, managers, matchmakers, and professional boxing, professional mixed martial arts, or professional sparring match or exhibition judges. He or she shall have the power and may control and limit the number of professional mixed martial arts, amateur mixed martial arts, professional boxing, or professional sparring matches or exhibitions given, or to be held, each year, or within one week, in any city or town, or by any organization. He or she may reprimand any amateur or professional athlete or any official or suspend for a period, not to exceed one year, his or her right to participate in any match or exhibition conducted by any licensee for unsportsmanlike conduct while engaged in or arising directly from any match or exhibition, failure to compete in good faith, engaging in any sham match or exhibition, or the use of threatening and abusive language toward officials, other contestants, or spectators.