What are the rules and regulations for playing volleyball at the professional level?

At the professional level, volleyball players must adhere to specific rules and regulations set by the governing body of the sport, such as the Fdration Internationale de Volleyball (FIVB). These rules cover aspects like court dimensions, player positions, scoring system, and game conduct. Players must also follow guidelines regarding equipment, attire, and doping regulations to maintain fair play and sportsmanship.