All sports have rules in place so the participants know how to play the game and individuals assigned to oversee the competition (officials) so the participants are assured of fair competition. Use this section to find links to the current USA Volleyball Domestic Competition Regulations (DCR aka “rules”) and any interpretations and technique updates issued by USA Volleyball. For more information about Indoor Volleyball Officiating in the Carolina Region, contact Marilyn Thompson, Carolina Region Officials Program Director and Stephen Shepherd, Carolina Region Referee Chair.